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One day, Twilight Sparkle is interested in how to sort a sequence of integers a1, a2, ..., an in non-decreasing order. Being a young unicorn, the only operation she can perform is a unit shift. That is, she can move the last element of the sequence to its beginning:
a1, a2, ..., an → an, a1, a2, ..., an - 1.
Help Twilight Sparkle to calculate: what is the minimum number of operations that she needs to sort the sequence?
Input
The first line contains an integer n (2 ≤ n ≤ 105). The second line contains n integer numbers a1, a2, ..., an (1 ≤ ai ≤ 105).
Output
If it's impossible to sort the sequence output -1. Otherwise output the minimum number of operations Twilight Sparkle needs to sort it.
Examples
Input
2
2 1
Output
1
Input
3
1 3 2
Output
-1
Input
2
1 2
Output
0
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def us_num(nums):
where = None
for idx, (a, na) in enumerate(zip(nums[:-1], nums[1:])):
if a > na:
if where is None:
where = idx
else:
return -1
if where is None:
return 0
elif nums[-1] > nums[0]:
return -1
return len(nums) - 1 - where
n = int(input())
nums = list(map(int, input().split()))
print(us_num(nums))
| python | code_algorithm | [
{
"input": "3\n1 3 2\n",
"output": "-1\n"
},
{
"input": "2\n1 2\n",
"output": "0\n"
},
{
"input": "2\n2 1\n",
"output": "1\n"
},
{
"input": "6\n5 6 7 5 5 5\n",
"output": "3\n"
},
{
"input": "5\n1 1 2 1 1\n",
"output": "2\n"
},
{
"input": "7\n2 3 4 1 2 3 4\n",
"output": "-1\n"
},
{
"input": "6\n4 5 6 1 2 7\n",
"output": "-1\n"
},
{
"input": "5\n2 2 1 2 2\n",
"output": "3\n"
},
{
"input": "6\n1 2 1 2 1 2\n",
"output": "-1\n"
},
{
"input": "3\n3 4 2\n",
"output": "1\n"
},
{
"input": "5\n5 4 3 2 1\n",
"output": "-1\n"
},
{
"input": "4\n2 4 1 3\n",
"output": "-1\n"
},
{
"input": "4\n6 1 2 7\n",
"output": "-1\n"
},
{
"input": "6\n1 1 2 2 1 1\n",
"output": "2\n"
},
{
"input": "4\n1 4 4 1\n",
"output": "1\n"
},
{
"input": "4\n1 2 2 1\n",
"output": "1\n"
},
{
"input": "2\n1 1\n",
"output": "0\n"
},
{
"input": "3\n3 2 1\n",
"output": "-1\n"
},
{
"input": "4\n2 3 1 4\n",
"output": "-1\n"
},
{
"input": "9\n4 5 6 7 1 2 3 4 10\n",
"output": "-1\n"
},
{
"input": "3\n1 2 1\n",
"output": "1\n"
},
{
"input": "5\n1 3 3 3 1\n",
"output": "1\n"
},
{
"input": "5\n4 6 7 3 5\n",
"output": "-1\n"
},
{
"input": "5\n4 5 6 2 3\n",
"output": "2\n"
},
{
"input": "7\n1 5 6 1 1 1 1\n",
"output": "4\n"
},
{
"input": "4\n5 4 5 4\n",
"output": "-1\n"
},
{
"input": "5\n7 8 6 7 8\n",
"output": "-1\n"
},
{
"input": "5\n3 4 2 1 2\n",
"output": "-1\n"
},
{
"input": "5\n3 5 7 7 3\n",
"output": "1\n"
},
{
"input": "7\n3 4 5 5 5 1 2\n",
"output": "2\n"
},
{
"input": "4\n1 1 4 1\n",
"output": "1\n"
},
{
"input": "5\n5 4 1 2 3\n",
"output": "-1\n"
},
{
"input": "4\n2 3 4 2\n",
"output": "1\n"
},
{
"input": "4\n2 4 1 4\n",
"output": "-1\n"
},
{
"input": "6\n1 2 3 1 1 1\n",
"output": "3\n"
},
{
"input": "5\n1 2 1 1 1\n",
"output": "3\n"
},
{
"input": "6\n3 4 5 6 3 2\n",
"output": "-1\n"
}
] | code_contests | python | 0.5 | b26977e1cd9d8a4eae5daed81e8afdc4 |
One hot summer day Pete and his friend Billy decided to buy a watermelon. They chose the biggest and the ripest one, in their opinion. After that the watermelon was weighed, and the scales showed w kilos. They rushed home, dying of thirst, and decided to divide the berry, however they faced a hard problem.
Pete and Billy are great fans of even numbers, that's why they want to divide the watermelon in such a way that each of the two parts weighs even number of kilos, at the same time it is not obligatory that the parts are equal. The boys are extremely tired and want to start their meal as soon as possible, that's why you should help them and find out, if they can divide the watermelon in the way they want. For sure, each of them should get a part of positive weight.
Input
The first (and the only) input line contains integer number w (1 ≤ w ≤ 100) — the weight of the watermelon bought by the boys.
Output
Print YES, if the boys can divide the watermelon into two parts, each of them weighing even number of kilos; and NO in the opposite case.
Examples
Input
8
Output
YES
Note
For example, the boys can divide the watermelon into two parts of 2 and 6 kilos respectively (another variant — two parts of 4 and 4 kilos).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | x=int(input())
y=x-2
if y%2==0 and y!=0:
print("YES")
else :
print("NO") | python | code_algorithm | [
{
"input": "8\n",
"output": "YES\n"
},
{
"input": "3\n",
"output": "NO\n"
},
{
"input": "98\n",
"output": "YES\n"
},
{
"input": "7\n",
"output": "NO\n"
},
{
"input": "90\n",
"output": "YES\n"
},
{
"input": "67\n",
"output": "NO\n"
},
{
"input": "4\n",
"output": "YES\n"
},
{
"input": "99\n",
"output": "NO\n"
},
{
"input": "6\n",
"output": "YES\n"
},
{
"input": "1\n",
"output": "NO\n"
},
{
"input": "2\n",
"output": "NO\n"
},
{
"input": "10\n",
"output": "YES\n"
},
{
"input": "77\n",
"output": "NO\n"
},
{
"input": "100\n",
"output": "YES\n"
},
{
"input": "5\n",
"output": "NO\n"
},
{
"input": "32\n",
"output": "YES\n"
},
{
"input": "88\n",
"output": "YES\n"
},
{
"input": "9\n",
"output": "NO\n"
},
{
"input": "53\n",
"output": "NO\n"
},
{
"input": "44\n",
"output": "YES\n"
}
] | code_contests | python | 0.4 | 8203a469d9921ed6166cb8286ad286d6 |
You are given string s. Your task is to determine if the given string s contains two non-overlapping substrings "AB" and "BA" (the substrings can go in any order).
Input
The only line of input contains a string s of length between 1 and 105 consisting of uppercase Latin letters.
Output
Print "YES" (without the quotes), if string s contains two non-overlapping substrings "AB" and "BA", and "NO" otherwise.
Examples
Input
ABA
Output
NO
Input
BACFAB
Output
YES
Input
AXBYBXA
Output
NO
Note
In the first sample test, despite the fact that there are substrings "AB" and "BA", their occurrences overlap, so the answer is "NO".
In the second sample test there are the following occurrences of the substrings: BACFAB.
In the third sample test there is no substring "AB" nor substring "BA".
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a = input()
b = a
f1=0
f2=0
if(a.find('AB')!=-1):
a = a.replace('AB', 'C', 1)
if(a.find('BA')!=-1):
f1=1
if(b.find('BA')!=-1):
b = b.replace('BA', 'C', 1)
if(b.find('AB')!=-1):
f2=1
if(f1==0 and f2==0):
print("NO")
else:
print("YES") | python | code_algorithm | [
{
"input": "ABA\n",
"output": "NO\n"
},
{
"input": "AXBYBXA\n",
"output": "NO\n"
},
{
"input": "BACFAB\n",
"output": "YES\n"
},
{
"input": "BAAA\n",
"output": "NO\n"
},
{
"input": "BAA\n",
"output": "NO\n"
},
{
"input": "ABABA\n",
"output": "YES\n"
},
{
"input": "BABAB\n",
"output": "YES\n"
},
{
"input": "AABBBACBBBBBBAACBCCACBBAABBBBBCAACABAACABCACCBCBCCCBCBCABCBBCCBCBBAACBACAABACBBCACCBCCACCABBCBABBAAC\n",
"output": "YES\n"
},
{
"input": "BABXXAB\n",
"output": "YES\n"
},
{
"input": "AAABAAACBBBC\n",
"output": "NO\n"
},
{
"input": "BBBB\n",
"output": "NO\n"
},
{
"input": "ABYFAB\n",
"output": "NO\n"
},
{
"input": "BAAB\n",
"output": "YES\n"
},
{
"input": "BBB\n",
"output": "NO\n"
},
{
"input": "BB\n",
"output": "NO\n"
},
{
"input": "BA\n",
"output": "NO\n"
},
{
"input": "AB\n",
"output": "NO\n"
},
{
"input": "QQQQQQQQQABABQQQQQQQQ\n",
"output": "NO\n"
},
{
"input": "AAA\n",
"output": "NO\n"
},
{
"input": "ABAA\n",
"output": "NO\n"
},
{
"input": "ABAB\n",
"output": "NO\n"
},
{
"input": "AA\n",
"output": "NO\n"
},
{
"input": "AAB\n",
"output": "NO\n"
},
{
"input": "CBBABDDBBADAC\n",
"output": "YES\n"
},
{
"input": "BABB\n",
"output": "NO\n"
},
{
"input": "A\n",
"output": "NO\n"
},
{
"input": "AABA\n",
"output": "NO\n"
},
{
"input": "BBBBBBBBBB\n",
"output": "NO\n"
},
{
"input": "ABAXXXAB\n",
"output": "YES\n"
},
{
"input": "BAB\n",
"output": "NO\n"
},
{
"input": "AABB\n",
"output": "NO\n"
},
{
"input": "AAAB\n",
"output": "NO\n"
},
{
"input": "TESTABAXXABTEST\n",
"output": "YES\n"
},
{
"input": "BABA\n",
"output": "NO\n"
},
{
"input": "BBBA\n",
"output": "NO\n"
},
{
"input": "X\n",
"output": "NO\n"
},
{
"input": "ABBB\n",
"output": "NO\n"
},
{
"input": "B\n",
"output": "NO\n"
},
{
"input": "AAAA\n",
"output": "NO\n"
},
{
"input": "ABAXXBBXXAA\n",
"output": "NO\n"
},
{
"input": "SKDSKDJABSDBADKFJDK\n",
"output": "YES\n"
},
{
"input": "ABAXAB\n",
"output": "YES\n"
},
{
"input": "ABABAB\n",
"output": "YES\n"
},
{
"input": "ABXABXABXABXABXBAXBAXBAXBA\n",
"output": "YES\n"
},
{
"input": "AXBXBXA\n",
"output": "NO\n"
},
{
"input": "ABB\n",
"output": "NO\n"
},
{
"input": "BBAA\n",
"output": "NO\n"
},
{
"input": "BBAB\n",
"output": "NO\n"
},
{
"input": "BBA\n",
"output": "NO\n"
},
{
"input": "ABABXAB\n",
"output": "YES\n"
},
{
"input": "ABBA\n",
"output": "YES\n"
}
] | code_contests | python | 0.2 | d2a64e9fa4cfd553fdd3b3f6ac1af7d6 |
You are given a sequence of numbers a1, a2, ..., an, and a number m.
Check if it is possible to choose a non-empty subsequence aij such that the sum of numbers in this subsequence is divisible by m.
Input
The first line contains two numbers, n and m (1 ≤ n ≤ 106, 2 ≤ m ≤ 103) — the size of the original sequence and the number such that sum should be divisible by it.
The second line contains n integers a1, a2, ..., an (0 ≤ ai ≤ 109).
Output
In the single line print either "YES" (without the quotes) if there exists the sought subsequence, or "NO" (without the quotes), if such subsequence doesn't exist.
Examples
Input
3 5
1 2 3
Output
YES
Input
1 6
5
Output
NO
Input
4 6
3 1 1 3
Output
YES
Input
6 6
5 5 5 5 5 5
Output
YES
Note
In the first sample test you can choose numbers 2 and 3, the sum of which is divisible by 5.
In the second sample test the single non-empty subsequence of numbers is a single number 5. Number 5 is not divisible by 6, that is, the sought subsequence doesn't exist.
In the third sample test you need to choose two numbers 3 on the ends.
In the fourth sample test you can take the whole subsequence.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,x=map(int,input().split())
a=set()
for i in input().split():
i=int(i)
b=set()
for j in a: b.add((i+j)%x)
a|=b
a.add(i%x)
if 0 in a:
print("YES")
break
else:
print("NO") | python | code_algorithm | [
{
"input": "4 6\n3 1 1 3\n",
"output": "YES\n"
},
{
"input": "1 6\n5\n",
"output": "NO\n"
},
{
"input": "6 6\n5 5 5 5 5 5\n",
"output": "YES\n"
},
{
"input": "3 5\n1 2 3\n",
"output": "YES\n"
},
{
"input": "100 951\n950 949 949 949 949 950 950 949 949 950 950 949 949 949 496 949 950 949 950 159 950 949 949 950 950 949 950 949 949 950 949 950 949 949 950 949 950 950 950 950 949 949 949 949 949 950 950 950 950 950 950 950 949 950 949 949 950 949 950 950 949 950 950 950 949 950 949 950 950 950 950 949 949 950 950 949 950 950 950 950 949 950 950 949 949 635 612 949 949 949 949 949 949 949 950 949 949 950 949 950\n",
"output": "YES\n"
},
{
"input": "3 5\n2 1 3\n",
"output": "YES\n"
},
{
"input": "4 7\n1 2 3 3\n",
"output": "YES\n"
},
{
"input": "10 11\n8 8 8 8 8 8 8 8 7 8\n",
"output": "YES\n"
},
{
"input": "9 11\n8 8 8 8 8 8 8 8 5\n",
"output": "NO\n"
},
{
"input": "100 940\n1 2 1 1 1 2 1 1 1 1 2 1 1 1 1 1 2 1 1 1 2 2 1 1 1 2 2 2 2 1 1 1 1 2 2 1 403 2 2 1 1 1 2 2 2 1 2 2 1 1 2 2 1 1 1 1 2 1 2 691 1 2 1 1 1 1 1 2 2 2 2 2 1 2 1 1 1 1 1 1 2 2 1 2 2 1 1 1 2 1 2 1 1 2 2 1 1 2 786 1\n",
"output": "YES\n"
},
{
"input": "4 5\n1 1 1 1\n",
"output": "NO\n"
},
{
"input": "1 47\n0\n",
"output": "YES\n"
},
{
"input": "5 5\n1 1 1 1 1\n",
"output": "YES\n"
},
{
"input": "100 917\n2 1 2 2 2 1 1 2 2 2 1 1 1 2 1 2 2 1 2 1 1 1 1 1 1 2 1 1 1 2 1 1 2 1 1 1 1 2 1 2 340 2 399 2 1 2 2 2 2 178 1 1 2 1 1 1 2 2 1 2 2 2 1 2 1 1 1 1 1 1 2 1 1 1 2 2 1 1 2 2 2 1 2 2 2 2 1 2 1 2 2 2 2 2 1 1 2 2 2 2\n",
"output": "YES\n"
},
{
"input": "1 2\n1000000000\n",
"output": "YES\n"
},
{
"input": "2 47\n1 0\n",
"output": "YES\n"
},
{
"input": "100 968\n966 966 967 966 967 967 967 967 966 966 966 967 966 966 966 967 967 966 966 967 967 967 967 966 967 967 967 967 563 967 967 967 600 967 967 966 967 966 967 966 967 966 967 966 966 966 967 966 967 966 966 967 967 193 966 966 967 966 967 967 967 966 967 966 966 580 966 967 966 966 967 966 966 966 967 967 967 967 966 967 967 966 966 966 967 967 966 966 967 966 966 966 967 966 966 967 966 967 966 966\n",
"output": "YES\n"
}
] | code_contests | python | 0.1 | 570c8ac6b27439167d011cf567e22a78 |
Little Petya has recently started attending a programming club. Naturally he is facing the problem of choosing a programming language. After long considerations he realized that Java is the best choice. The main argument in favor of choosing Java was that it has a very large integer data type, called BigInteger.
But having attended several classes of the club, Petya realized that not all tasks require using the BigInteger type. It turned out that in some tasks it is much easier to use small data types. That's why a question arises: "Which integer type to use if one wants to store a positive integer n?"
Petya knows only 5 integer types:
1) byte occupies 1 byte and allows you to store numbers from - 128 to 127
2) short occupies 2 bytes and allows you to store numbers from - 32768 to 32767
3) int occupies 4 bytes and allows you to store numbers from - 2147483648 to 2147483647
4) long occupies 8 bytes and allows you to store numbers from - 9223372036854775808 to 9223372036854775807
5) BigInteger can store any integer number, but at that it is not a primitive type, and operations with it are much slower.
For all the types given above the boundary values are included in the value range.
From this list, Petya wants to choose the smallest type that can store a positive integer n. Since BigInteger works much slower, Peter regards it last. Help him.
Input
The first line contains a positive number n. It consists of no more than 100 digits and doesn't contain any leading zeros. The number n can't be represented as an empty string.
Please, do not use %lld specificator to read or write 64-bit integers in C++. It is preffered to use cout (also you may use %I64d).
Output
Print the first type from the list "byte, short, int, long, BigInteger", that can store the natural number n, in accordance with the data given above.
Examples
Input
127
Output
byte
Input
130
Output
short
Input
123456789101112131415161718192021222324
Output
BigInteger
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n= int(input())
if(n<=127):
print("byte")
elif(n<=32767):
print("short")
elif(n<=2147483647):
print("int")
elif(n<=9223372036854775807):
print("long")
else:
print("BigInteger") | python | code_algorithm | [
{
"input": "123456789101112131415161718192021222324\n",
"output": "BigInteger\n"
},
{
"input": "127\n",
"output": "byte\n"
},
{
"input": "130\n",
"output": "short\n"
},
{
"input": "7330105816139991597267787581532092408135003429259616955239761315950805521264994021242873979309182812\n",
"output": "BigInteger\n"
},
{
"input": "126\n",
"output": "byte\n"
},
{
"input": "2147483649\n",
"output": "long\n"
},
{
"input": "4596620932866717074931903995027173085744596193421095444317407919730992986418713478580824584919587030\n",
"output": "BigInteger\n"
},
{
"input": "6911378\n",
"output": "int\n"
},
{
"input": "9223372036854775807\n",
"output": "long\n"
},
{
"input": "71\n",
"output": "byte\n"
},
{
"input": "2210209454022702335652564247406666491086662454147967686455330365147159266087\n",
"output": "BigInteger\n"
},
{
"input": "303681723783491968617491075591006152690484825330764215796396316561122383310011589365655481\n",
"output": "BigInteger\n"
},
{
"input": "3036817237\n",
"output": "long\n"
},
{
"input": "13\n",
"output": "byte\n"
},
{
"input": "262373979958859125198440634134122707574734706745701184688685117904709744\n",
"output": "BigInteger\n"
},
{
"input": "8713549841568602590705962611607726022334779480510421458817648621376683672722573289661127894678771177\n",
"output": "BigInteger\n"
},
{
"input": "13408349824892484976400774\n",
"output": "BigInteger\n"
},
{
"input": "59662093286671707493190399502717308574459619342109544431740791973099298641871347858082458491958703\n",
"output": "BigInteger\n"
},
{
"input": "80046142930\n",
"output": "long\n"
},
{
"input": "241796563564014133460267652699\n",
"output": "BigInteger\n"
},
{
"input": "9868516691082119705634490091770767356866980849060075143915700796802700437762260163478754592094654326\n",
"output": "BigInteger\n"
},
{
"input": "680504312323996476676434432\n",
"output": "BigInteger\n"
},
{
"input": "1658370691480968202384509492140362150472696196949\n",
"output": "BigInteger\n"
},
{
"input": "1018099095694675712973365059619493374113337270925179793757322992466016001294122941535439492265169131\n",
"output": "BigInteger\n"
},
{
"input": "18880842614378213198381172973704766723997934818440985546083314104481253291692101136681\n",
"output": "BigInteger\n"
},
{
"input": "4868659422768117401499491767189496733446324586965055954729177892248858259490346614099717639491763430\n",
"output": "BigInteger\n"
},
{
"input": "630105816139991597267787581532092408135\n",
"output": "BigInteger\n"
},
{
"input": "26237397\n",
"output": "int\n"
},
{
"input": "118099095694675\n",
"output": "long\n"
},
{
"input": "3376595620091080825479292544658464163405755746884100218035\n",
"output": "BigInteger\n"
},
{
"input": "713549841568602590705962611607726022334779480510421458817648621376683672722573289661127894\n",
"output": "BigInteger\n"
},
{
"input": "9721020945402270233565256424740666649108666245414796768645533036514715926608741510409618545180420952\n",
"output": "BigInteger\n"
},
{
"input": "8437952166310387766556098005402621146120844433859027080340550200820904706629305453285512716464931911\n",
"output": "BigInteger\n"
},
{
"input": "6965837069148096820238450949214036215047269619694967357734070611376013382163559966747678150791825071\n",
"output": "BigInteger\n"
},
{
"input": "2158324958633591462\n",
"output": "long\n"
},
{
"input": "9223372036854775806\n",
"output": "long\n"
},
{
"input": "2334083498248924849764007740114454487565621932425948046430072197452845278935316358800789014185793377\n",
"output": "BigInteger\n"
},
{
"input": "2000461429306907809762708270752707617318091579531521957022940951538737203583768926365382290530636885\n",
"output": "BigInteger\n"
},
{
"input": "32766\n",
"output": "short\n"
},
{
"input": "533488906\n",
"output": "int\n"
},
{
"input": "9223372036854775805\n",
"output": "long\n"
},
{
"input": "4491137842784568289872893698937459777201151060689848471272003426250808340375567208957554901863756992\n",
"output": "BigInteger\n"
},
{
"input": "268659422768117401499491767189496733446324586965055954729177892248858259490346\n",
"output": "BigInteger\n"
},
{
"input": "1180990956946757129733650596194933741\n",
"output": "BigInteger\n"
},
{
"input": "16\n",
"output": "byte\n"
},
{
"input": "3376\n",
"output": "short\n"
},
{
"input": "205505005582428018613354752739589866670902346355933720701937\n",
"output": "BigInteger\n"
},
{
"input": "6\n",
"output": "byte\n"
},
{
"input": "2147483645\n",
"output": "int\n"
},
{
"input": "188808426143\n",
"output": "long\n"
},
{
"input": "2147483648\n",
"output": "long\n"
},
{
"input": "32767\n",
"output": "short\n"
},
{
"input": "2147483647\n",
"output": "int\n"
},
{
"input": "73795216631038\n",
"output": "long\n"
},
{
"input": "63010581613999159\n",
"output": "long\n"
},
{
"input": "596620932866\n",
"output": "long\n"
},
{
"input": "9223372036854775808\n",
"output": "BigInteger\n"
},
{
"input": "3502376450544974584438103644603879910000471793634498544789130945841846713263971487355748226237288709\n",
"output": "BigInteger\n"
},
{
"input": "1403681723783491968617491075591006152690484825330764215796396316561122383310011589365655481428540208\n",
"output": "BigInteger\n"
},
{
"input": "221020945402270233\n",
"output": "long\n"
},
{
"input": "3023764505449745844381036446038799100004717936344985\n",
"output": "BigInteger\n"
},
{
"input": "1111111111111111111111111111111111111111111111\n",
"output": "BigInteger\n"
},
{
"input": "232\n",
"output": "short\n"
},
{
"input": "6805043123239964766\n",
"output": "long\n"
},
{
"input": "128\n",
"output": "short\n"
},
{
"input": "26\n",
"output": "byte\n"
},
{
"input": "73795216631038776655609800540262114612084443385902708034055020082090470662930545328551\n",
"output": "BigInteger\n"
},
{
"input": "2055050055\n",
"output": "int\n"
},
{
"input": "29360359146807441660707083821018832188095237636414144034857851003419752010124705615779249\n",
"output": "BigInteger\n"
},
{
"input": "32768\n",
"output": "int\n"
},
{
"input": "32769\n",
"output": "int\n"
},
{
"input": "2537659562009108082547929254465846416340575574688410021803548570097340949141688442074263189944614467\n",
"output": "BigInteger\n"
},
{
"input": "302376450544\n",
"output": "long\n"
},
{
"input": "2147483646\n",
"output": "int\n"
},
{
"input": "7685166910821197\n",
"output": "long\n"
},
{
"input": "9223372036854775809\n",
"output": "BigInteger\n"
},
{
"input": "53348890623013817139699\n",
"output": "BigInteger\n"
},
{
"input": "800461429306907809762708270\n",
"output": "BigInteger\n"
},
{
"input": "1905505005582428018613354752739589866670902346355933720701937408006000562951996789032987808118459990\n",
"output": "BigInteger\n"
},
{
"input": "4580504312323996476676434432646986768872786931159974634901608445720467716981185426771899006352697916\n",
"output": "BigInteger\n"
},
{
"input": "1658370691480\n",
"output": "long\n"
},
{
"input": "111111\n",
"output": "int\n"
},
{
"input": "1988808426143782131983811729737047667239979348184409855460833141044812532916921011366813880911319644\n",
"output": "BigInteger\n"
},
{
"input": "69113784278456828987289369893745977\n",
"output": "BigInteger\n"
},
{
"input": "7685166910821197056344900917707673568669808490600751439157\n",
"output": "BigInteger\n"
},
{
"input": "8433488906230138171396997888322916936677429522910871017295155818340819168386140293774243244435122950\n",
"output": "BigInteger\n"
},
{
"input": "337300529263821789926982715723773719445001702036602052198530564\n",
"output": "BigInteger\n"
},
{
"input": "22222\n",
"output": "short\n"
},
{
"input": "6862373979958859125198440634134122707574734706745701184688685117904709744830303784215298687654884810\n",
"output": "BigInteger\n"
},
{
"input": "381127467969689863953686682245136076127159921\n",
"output": "BigInteger\n"
}
] | code_contests | python | 0.5 | 3af36abdfc5f69d1ce7bdf8c158640b2 |
Heidi has finally found the mythical Tree of Life – a legendary combinatorial structure which is said to contain a prophecy crucially needed to defeat the undead armies.
On the surface, the Tree of Life is just a regular undirected tree well-known from computer science. This means that it is a collection of n points (called vertices), some of which are connected using n - 1 line segments (edges) so that each pair of vertices is connected by a path (a sequence of one or more edges).
To decipher the prophecy, Heidi needs to perform a number of steps. The first is counting the number of lifelines in the tree – these are paths of length 2, i.e., consisting of two edges. Help her!
Input
The first line of the input contains a single integer n – the number of vertices in the tree (1 ≤ n ≤ 10000). The vertices are labeled with the numbers from 1 to n. Then n - 1 lines follow, each describing one edge using two space-separated numbers a b – the labels of the vertices connected by the edge (1 ≤ a < b ≤ n). It is guaranteed that the input represents a tree.
Output
Print one integer – the number of lifelines in the tree.
Examples
Input
4
1 2
1 3
1 4
Output
3
Input
5
1 2
2 3
3 4
3 5
Output
4
Note
In the second sample, there are four lifelines: paths between vertices 1 and 3, 2 and 4, 2 and 5, and 4 and 5.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
a = [0]*(n+1)
for _ in range(n-1):
x, y = input().split(' ')
x, y = [int(x), int(y)]
a[x] += 1
a[y] += 1
too = 0
for x in a:
too += (x * (x-1))//2
print(too)
| python | code_algorithm | [
{
"input": "4\n1 2\n1 3\n1 4\n",
"output": "3\n"
},
{
"input": "5\n1 2\n2 3\n3 4\n3 5\n",
"output": "4\n"
},
{
"input": "2\n1 2\n",
"output": "0\n"
},
{
"input": "3\n2 1\n3 2\n",
"output": "1\n"
},
{
"input": "10\n5 1\n1 2\n9 3\n10 5\n6 3\n8 5\n2 7\n2 3\n9 4\n",
"output": "11\n"
}
] | code_contests | python | 1 | eb43966a8926282f134e5e2bf46c7150 |
Ostap already settled down in Rio de Janiero suburb and started to grow a tree in his garden. Recall that a tree is a connected undirected acyclic graph.
Ostap's tree now has n vertices. He wants to paint some vertices of the tree black such that from any vertex u there is at least one black vertex v at distance no more than k. Distance between two vertices of the tree is the minimum possible number of edges of the path between them.
As this number of ways to paint the tree can be large, Ostap wants you to compute it modulo 109 + 7. Two ways to paint the tree are considered different if there exists a vertex that is painted black in one way and is not painted in the other one.
Input
The first line of the input contains two integers n and k (1 ≤ n ≤ 100, 0 ≤ k ≤ min(20, n - 1)) — the number of vertices in Ostap's tree and the maximum allowed distance to the nearest black vertex. Don't miss the unusual constraint for k.
Each of the next n - 1 lines contain two integers ui and vi (1 ≤ ui, vi ≤ n) — indices of vertices, connected by the i-th edge. It's guaranteed that given graph is a tree.
Output
Print one integer — the remainder of division of the number of ways to paint the tree by 1 000 000 007 (109 + 7).
Examples
Input
2 0
1 2
Output
1
Input
2 1
1 2
Output
3
Input
4 1
1 2
2 3
3 4
Output
9
Input
7 2
1 2
2 3
1 4
4 5
1 6
6 7
Output
91
Note
In the first sample, Ostap has to paint both vertices black.
In the second sample, it is enough to paint only one of two vertices, thus the answer is 3: Ostap can paint only vertex 1, only vertex 2, vertices 1 and 2 both.
In the third sample, the valid ways to paint vertices are: {1, 3}, {1, 4}, {2, 3}, {2, 4}, {1, 2, 3}, {1, 2, 4}, {1, 3, 4}, {2, 3, 4}, {1, 2, 3, 4}.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def main():
n, k = map(int, input().split())
cnt = [[[0] * 21 for _ in (0, 1)] for _ in range(n + 1)]
edges, mod = [[] for _ in range(n + 1)], 1000000007
for _ in range(n - 1):
u, v = map(int, input().split())
edges[u].append(v)
edges[v].append(u)
def dfs(u, f):
cnt[u][0][0] = cnt[u][1][k] = 1
for v in edges[u]:
if v != f:
dfs(v, u)
tmp0, tmp1 = [0] * 21, [0] * 21
for i in range(k + 1):
for j in range(k + 1):
if i != k:
tmp0[j if i < j else i + 1] += cnt[u][0][j] * cnt[v][0][i]
if i < j:
tmp1[j] += cnt[u][1][j] * cnt[v][0][i]
elif i != k:
tmp0[i + 1] += cnt[u][1][j] * cnt[v][0][i]
if i > j:
tmp1[i - 1] += cnt[u][0][j] * cnt[v][1][i]
else:
tmp0[j] += cnt[u][0][j] * cnt[v][1][i]
tmp1[max(i - 1, j)] += cnt[u][1][j] * cnt[v][1][i]
for i in range(21):
tmp0[i] %= mod
tmp1[i] %= mod
cnt[u][0] = tmp0
cnt[u][1] = tmp1
dfs(1, 1)
print(sum(cnt[1][1][j] for j in range(k + 1)) % mod)
if __name__ == '__main__':
main()
| python | code_algorithm | [
{
"input": "7 2\n1 2\n2 3\n1 4\n4 5\n1 6\n6 7\n",
"output": "91\n"
},
{
"input": "4 1\n1 2\n2 3\n3 4\n",
"output": "9\n"
},
{
"input": "2 0\n1 2\n",
"output": "1\n"
},
{
"input": "2 1\n1 2\n",
"output": "3\n"
},
{
"input": "10 1\n6 3\n1 5\n10 7\n4 10\n2 4\n5 9\n8 1\n1 3\n7 3\n",
"output": "279\n"
},
{
"input": "10 0\n9 10\n5 1\n10 5\n8 6\n8 2\n7 8\n8 1\n8 3\n4 3\n",
"output": "1\n"
},
{
"input": "10 4\n4 6\n3 5\n7 3\n4 9\n10 2\n1 9\n4 8\n10 3\n8 7\n",
"output": "993\n"
},
{
"input": "10 1\n6 8\n1 9\n1 5\n6 10\n3 9\n9 4\n10 9\n2 4\n7 4\n",
"output": "255\n"
},
{
"input": "10 4\n9 6\n10 8\n9 2\n7 10\n3 7\n7 9\n10 4\n1 7\n9 5\n",
"output": "1023\n"
},
{
"input": "10 9\n1 2\n3 1\n6 10\n6 1\n10 9\n4 5\n7 1\n5 6\n8 5\n",
"output": "1023\n"
},
{
"input": "5 1\n1 2\n4 3\n5 3\n2 3\n",
"output": "15\n"
},
{
"input": "63 5\n2 31\n5 41\n15 20\n38 12\n54 7\n31 54\n24 47\n13 19\n54 39\n57 50\n25 18\n59 11\n47 30\n60 49\n13 24\n7 11\n16 4\n28 59\n43 36\n3 33\n10 32\n40 48\n63 35\n49 56\n29 20\n44 18\n7 24\n49 18\n36 11\n9 13\n58 23\n34 47\n3 51\n5 61\n1 16\n26 6\n37 57\n26 8\n48 52\n25 43\n26 28\n22 39\n14 31\n44 21\n5 17\n33 23\n48 41\n42 44\n12 51\n59 50\n12 62\n25 41\n53 23\n16 28\n51 32\n63 27\n55 57\n33 20\n45 39\n32 46\n50 63\n3 43\n",
"output": "560665636\n"
},
{
"input": "10 5\n6 4\n4 1\n7 5\n8 7\n2 6\n3 6\n8 6\n10 3\n4 9\n",
"output": "1023\n"
},
{
"input": "10 3\n2 5\n4 8\n4 5\n6 8\n4 1\n5 10\n7 9\n4 7\n3 9\n",
"output": "945\n"
},
{
"input": "10 2\n1 4\n10 9\n1 5\n3 10\n2 10\n5 8\n6 1\n2 7\n6 10\n",
"output": "743\n"
},
{
"input": "64 3\n13 10\n60 54\n23 35\n4 41\n59 18\n41 36\n48 13\n64 8\n30 19\n53 3\n34 11\n24 27\n21 25\n5 55\n51 11\n3 45\n24 57\n47 38\n55 26\n8 20\n29 42\n44 3\n7 15\n9 1\n17 4\n41 9\n15 29\n60 13\n31 36\n53 52\n59 14\n12 52\n24 31\n47 28\n29 23\n2 49\n30 44\n28 31\n25 22\n9 58\n64 11\n45 35\n59 44\n62 8\n49 53\n32 48\n36 45\n4 56\n25 42\n42 33\n23 10\n48 39\n37 28\n10 64\n6 7\n30 63\n33 50\n40 7\n33 16\n49 46\n60 61\n52 43\n15 55\n",
"output": "257869945\n"
},
{
"input": "10 2\n7 10\n2 1\n6 5\n10 6\n3 1\n10 4\n3 4\n9 3\n8 4\n",
"output": "705\n"
},
{
"input": "10 0\n5 6\n4 3\n8 5\n3 7\n10 4\n1 2\n2 8\n10 1\n7 9\n",
"output": "1\n"
},
{
"input": "1 0\n",
"output": "1\n"
}
] | code_contests | python | 0 | 90b79d03b24efa117cb5a7aff676dd2c |
Innokenty is a president of a new football league in Byteland. The first task he should do is to assign short names to all clubs to be shown on TV next to the score. Of course, the short names should be distinct, and Innokenty wants that all short names consist of three letters.
Each club's full name consist of two words: the team's name and the hometown's name, for example, "DINAMO BYTECITY". Innokenty doesn't want to assign strange short names, so he wants to choose such short names for each club that:
1. the short name is the same as three first letters of the team's name, for example, for the mentioned club it is "DIN",
2. or, the first two letters of the short name should be the same as the first two letters of the team's name, while the third letter is the same as the first letter in the hometown's name. For the mentioned club it is "DIB".
Apart from this, there is a rule that if for some club x the second option of short name is chosen, then there should be no club, for which the first option is chosen which is the same as the first option for the club x. For example, if the above mentioned club has short name "DIB", then no club for which the first option is chosen can have short name equal to "DIN". However, it is possible that some club have short name "DIN", where "DI" are the first two letters of the team's name, and "N" is the first letter of hometown's name. Of course, no two teams can have the same short name.
Help Innokenty to choose a short name for each of the teams. If this is impossible, report that. If there are multiple answer, any of them will suit Innokenty. If for some team the two options of short name are equal, then Innokenty will formally think that only one of these options is chosen.
Input
The first line contains a single integer n (1 ≤ n ≤ 1000) — the number of clubs in the league.
Each of the next n lines contains two words — the team's name and the hometown's name for some club. Both team's name and hometown's name consist of uppercase English letters and have length at least 3 and at most 20.
Output
It it is not possible to choose short names and satisfy all constraints, print a single line "NO".
Otherwise, in the first line print "YES". Then print n lines, in each line print the chosen short name for the corresponding club. Print the clubs in the same order as they appeared in input.
If there are multiple answers, print any of them.
Examples
Input
2
DINAMO BYTECITY
FOOTBALL MOSCOW
Output
YES
DIN
FOO
Input
2
DINAMO BYTECITY
DINAMO BITECITY
Output
NO
Input
3
PLAYFOOTBALL MOSCOW
PLAYVOLLEYBALL SPB
GOGO TECHNOCUP
Output
YES
PLM
PLS
GOG
Input
3
ABC DEF
ABC EFG
ABD OOO
Output
YES
ABD
ABE
ABO
Note
In the first sample Innokenty can choose first option for both clubs.
In the second example it is not possible to choose short names, because it is not possible that one club has first option, and the other has second option if the first options are equal for both clubs.
In the third example Innokenty can choose the second options for the first two clubs, and the first option for the third club.
In the fourth example note that it is possible that the chosen short name for some club x is the same as the first option of another club y if the first options of x and y are different.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import defaultdict
names = int(input())
inp = [input().split() for x in range(names)]
choice = []
res = defaultdict(lambda: [])
for x, word in enumerate(inp):
choice.append(False)
res[word[0][:3]].append(x)
while True:
changes = []
for key in res.keys():
if len(res[key]) > 1:
# All choice = False options must be changed
remove = []
for i, index in enumerate(res[key]):
if choice[index]: continue
remove.append(i)
choice[index] = True
changes.append((inp[index][0][:2] + inp[index][1][0], index))
for i in remove[::-1]:
del res[key][i]
if len(changes) == 0: break
for word, i in changes:
res[word].append(i)
bad = False
for key in res.keys():
if len(res[key]) > 1: bad = True
if bad:
print("NO")
else:
print("YES")
for i in range(names):
if choice[i]:
print(inp[i][0][:2] + inp[i][1][0])
else:
print(inp[i][0][:3])
| python | code_algorithm | [
{
"input": "3\nABC DEF\nABC EFG\nABD OOO\n",
"output": "YES\nABD\nABE\nABO\n"
},
{
"input": "2\nDINAMO BYTECITY\nFOOTBALL MOSCOW\n",
"output": "YES\nDIN\nFOO\n"
},
{
"input": "3\nPLAYFOOTBALL MOSCOW\nPLAYVOLLEYBALL SPB\nGOGO TECHNOCUP\n",
"output": "YES\nPLM\nPLS\nGOG\n"
},
{
"input": "2\nDINAMO BYTECITY\nDINAMO BITECITY\n",
"output": "NO\n"
},
{
"input": "5\nADAC BABC\nABB DCB\nABB BCDC\nDBAC BAC\nDBBC DBC\n",
"output": "YES\nADA\nABD\nABB\nDBA\nDBB\n"
},
{
"input": "5\nIAH HJIE\nIAH FJK\nIAH BIAA\nIAH AFG\nIAH DEFF\n",
"output": "YES\nIAH\nIAF\nIAB\nIAA\nIAD\n"
},
{
"input": "3\nABC DEF\nABC EFG\nABC EEEEE\n",
"output": "NO\n"
},
{
"input": "4\nABA DEF\nABB DEF\nABC DEF\nABE DEF\n",
"output": "YES\nABA\nABB\nABC\nABE\n"
},
{
"input": "10\nEDBG IGGAC\nEDBG GIKAG\nEDBG IKGEI\nEDBG AJEG\nEDBG HAD\nEDBG ACKK\nEDBG FEDE\nEDBG DAB\nEDBG CCJBD\nEDBG KKGFB\n",
"output": "NO\n"
},
{
"input": "1\nAAAAAAAAAAAAAAAAAAAA ZZZZZZZZZZZZZZZZZZZZ\n",
"output": "YES\nAAA\n"
},
{
"input": "3\nABC DEF\nABC EFG\nABD CABA\n",
"output": "YES\nABD\nABE\nABC\n"
},
{
"input": "10\nIJGDI KHB\nHBI CKKCG\nFHE GCAA\nEDCGH HHICE\nGFH AIHD\nHED KIK\nDCK BCFIJ\nFFIHE FDB\nJGB AKKI\nIJD CAG\n",
"output": "YES\nIJG\nHBI\nFHE\nEDC\nGFH\nHED\nDCK\nFFI\nJGB\nIJD\n"
},
{
"input": "2\nABC CCC\nABE CCC\n",
"output": "YES\nABC\nABE\n"
},
{
"input": "1\nAAA AAA\n",
"output": "YES\nAAA\n"
},
{
"input": "3\nABC DEF\nABC EFG\nABD EABA\n",
"output": "NO\n"
},
{
"input": "10\nADE GBH\nJJDGJ AAF\nJJDGJ BBKG\nADE FKH\nADE CIA\nAIE JCBJ\nAIE BBJB\nEBAK JDB\nJJDGJ IDBG\nCEJE FIG\n",
"output": "YES\nADG\nJJA\nJJB\nADF\nADC\nAIJ\nAIB\nEBA\nJJI\nCEJ\n"
},
{
"input": "2\nABS SSS\nABD SSD\n",
"output": "YES\nABS\nABD\n"
}
] | code_contests | python | 0 | bb8e12eacea1677f579848f9d1c2afc4 |
A few years ago Sajjad left his school and register to another one due to security reasons. Now he wishes to find Amir, one of his schoolmates and good friends.
There are n schools numerated from 1 to n. One can travel between each pair of them, to do so, he needs to buy a ticket. The ticker between schools i and j costs <image> and can be used multiple times. Help Sajjad to find the minimum cost he needs to pay for tickets to visit all schools. He can start and finish in any school.
Input
The first line contains a single integer n (1 ≤ n ≤ 105) — the number of schools.
Output
Print single integer: the minimum cost of tickets needed to visit all schools.
Examples
Input
2
Output
0
Input
10
Output
4
Note
In the first example we can buy a ticket between the schools that costs <image>.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
print(int((n + 1) / 2) - 1) | python | code_algorithm | [
{
"input": "10\n",
"output": "4\n"
},
{
"input": "2\n",
"output": "0\n"
},
{
"input": "60397\n",
"output": "30198\n"
},
{
"input": "53022\n",
"output": "26510\n"
},
{
"input": "32866\n",
"output": "16432\n"
},
{
"input": "40873\n",
"output": "20436\n"
},
{
"input": "100000\n",
"output": "49999\n"
},
{
"input": "79227\n",
"output": "39613\n"
},
{
"input": "31809\n",
"output": "15904\n"
},
{
"input": "33377\n",
"output": "16688\n"
},
{
"input": "17879\n",
"output": "8939\n"
},
{
"input": "20289\n",
"output": "10144\n"
},
{
"input": "1\n",
"output": "0\n"
},
{
"input": "31775\n",
"output": "15887\n"
},
{
"input": "86539\n",
"output": "43269\n"
},
{
"input": "99996\n",
"output": "49997\n"
},
{
"input": "82801\n",
"output": "41400\n"
},
{
"input": "4\n",
"output": "1\n"
},
{
"input": "99998\n",
"output": "49998\n"
},
{
"input": "4217\n",
"output": "2108\n"
},
{
"input": "77859\n",
"output": "38929\n"
},
{
"input": "99997\n",
"output": "49998\n"
},
{
"input": "99999\n",
"output": "49999\n"
},
{
"input": "3\n",
"output": "1\n"
},
{
"input": "5188\n",
"output": "2593\n"
},
{
"input": "12802\n",
"output": "6400\n"
},
{
"input": "43670\n",
"output": "21834\n"
}
] | code_contests | python | 0.5 | cc3d4c932cfcff678a133c260e7a65ee |
Alice and Bob begin their day with a quick game. They first choose a starting number X0 ≥ 3 and try to reach one million by the process described below.
Alice goes first and then they take alternating turns. In the i-th turn, the player whose turn it is selects a prime number smaller than the current number, and announces the smallest multiple of this prime number that is not smaller than the current number.
Formally, he or she selects a prime p < Xi - 1 and then finds the minimum Xi ≥ Xi - 1 such that p divides Xi. Note that if the selected prime p already divides Xi - 1, then the number does not change.
Eve has witnessed the state of the game after two turns. Given X2, help her determine what is the smallest possible starting number X0. Note that the players don't necessarily play optimally. You should consider all possible game evolutions.
Input
The input contains a single integer X2 (4 ≤ X2 ≤ 106). It is guaranteed that the integer X2 is composite, that is, is not prime.
Output
Output a single integer — the minimum possible X0.
Examples
Input
14
Output
6
Input
20
Output
15
Input
8192
Output
8191
Note
In the first test, the smallest possible starting number is X0 = 6. One possible course of the game is as follows:
* Alice picks prime 5 and announces X1 = 10
* Bob picks prime 7 and announces X2 = 14.
In the second case, let X0 = 15.
* Alice picks prime 2 and announces X1 = 16
* Bob picks prime 5 and announces X2 = 20.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import math,sys,bisect,heapq
from collections import defaultdict,Counter,deque
from itertools import groupby,accumulate
#sys.setrecursionlimit(200000000)
int1 = lambda x: int(x) - 1
input = iter(sys.stdin.buffer.read().decode().splitlines()).__next__
ilele = lambda: map(int,input().split())
alele = lambda: list(map(int, input().split()))
ilelec = lambda: map(int1,input().split())
alelec = lambda: list(map(int1, input().split()))
def list2d(a, b, c): return [[c] * b for i in range(a)]
def list3d(a, b, c, d): return [[[d] * c for j in range(b)] for i in range(a)]
#MOD = 1000000000 + 7
def Y(c): print(["NO","YES"][c])
def y(c): print(["no","yes"][c])
def Yy(c): print(["No","Yes"][c])
N = int(input())
P = [0 for _ in range(1000010)]
for i in range(2, N):
if P[i] == 0:
for j in range(2*i, N+1, i):
P[j] = i
ans = 1000010
for i in range(N-P[N]+1, N+1):
ans = min(ans, i-P[i]+1)
print(ans) | python | code_algorithm | [
{
"input": "8192\n",
"output": "8191\n"
},
{
"input": "20\n",
"output": "15\n"
},
{
"input": "14\n",
"output": "6\n"
},
{
"input": "12\n",
"output": "6\n"
},
{
"input": "908209\n",
"output": "453632\n"
},
{
"input": "999958\n",
"output": "250008\n"
},
{
"input": "6\n",
"output": "3\n"
},
{
"input": "1452\n",
"output": "1206\n"
},
{
"input": "570570\n",
"output": "285282\n"
},
{
"input": "959878\n",
"output": "239978\n"
},
{
"input": "15\n",
"output": "8\n"
},
{
"input": "959806\n",
"output": "239958\n"
},
{
"input": "959818\n",
"output": "239958\n"
},
{
"input": "16\n",
"output": "11\n"
},
{
"input": "896809\n",
"output": "447944\n"
},
{
"input": "974859\n",
"output": "324978\n"
},
{
"input": "9\n",
"output": "7\n"
},
{
"input": "665280\n",
"output": "498958\n"
},
{
"input": "166320\n",
"output": "110879\n"
},
{
"input": "974931\n",
"output": "324980\n"
},
{
"input": "720721\n",
"output": "355298\n"
},
{
"input": "974847\n",
"output": "324954\n"
},
{
"input": "4\n",
"output": "3\n"
},
{
"input": "81\n",
"output": "76\n"
},
{
"input": "531440\n",
"output": "265704\n"
},
{
"input": "8\n",
"output": "7\n"
},
{
"input": "221760\n",
"output": "110880\n"
},
{
"input": "524288\n",
"output": "524287\n"
},
{
"input": "524286\n",
"output": "262110\n"
},
{
"input": "2048\n",
"output": "1959\n"
},
{
"input": "935090\n",
"output": "463950\n"
},
{
"input": "554400\n",
"output": "415798\n"
},
{
"input": "332640\n",
"output": "166320\n"
},
{
"input": "10\n",
"output": "4\n"
},
{
"input": "885481\n",
"output": "442272\n"
},
{
"input": "110880\n",
"output": "55440\n"
},
{
"input": "531441\n",
"output": "526737\n"
},
{
"input": "959902\n",
"output": "239978\n"
},
{
"input": "690690\n",
"output": "460455\n"
},
{
"input": "935089\n",
"output": "467064\n"
},
{
"input": "277200\n",
"output": "138600\n"
},
{
"input": "690691\n",
"output": "342864\n"
},
{
"input": "1000000\n",
"output": "998677\n"
},
{
"input": "720720\n",
"output": "540538\n"
},
{
"input": "959903\n",
"output": "479702\n"
},
{
"input": "531442\n",
"output": "262490\n"
},
{
"input": "974932\n",
"output": "470060\n"
},
{
"input": "524289\n",
"output": "174768\n"
},
{
"input": "510510\n",
"output": "255248\n"
},
{
"input": "498960\n",
"output": "332639\n"
}
] | code_contests | python | 0 | 31635fa6c218bad54a657ac09cedf17c |
You might have heard about the next game in Lara Croft series coming out this year. You also might have watched its trailer. Though you definitely missed the main idea about its plot, so let me lift the veil of secrecy.
Lara is going to explore yet another dangerous dungeon. Game designers decided to use good old 2D environment. The dungeon can be represented as a rectangle matrix of n rows and m columns. Cell (x, y) is the cell in the x-th row in the y-th column. Lara can move between the neighbouring by side cells in all four directions.
Moreover, she has even chosen the path for herself to avoid all the traps. She enters the dungeon in cell (1, 1), that is top left corner of the matrix. Then she goes down all the way to cell (n, 1) — the bottom left corner. Then she starts moving in the snake fashion — all the way to the right, one cell up, then to the left to the cell in 2-nd column, one cell up. She moves until she runs out of non-visited cells. n and m given are such that she always end up in cell (1, 2).
Lara has already moved to a neighbouring cell k times. Can you determine her current position?
Input
The only line contains three integers n, m and k (2 ≤ n, m ≤ 109, n is always even, 0 ≤ k < n·m). Note that k doesn't fit into 32-bit integer type!
Output
Print the cell (the row and the column where the cell is situated) where Lara ends up after she moves k times.
Examples
Input
4 3 0
Output
1 1
Input
4 3 11
Output
1 2
Input
4 3 7
Output
3 2
Note
Here is her path on matrix 4 by 3:
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import sys
n,m,k=map(int,input().split())
if(k<n):
print(k+1,1)
sys.exit()
k-=n
x=n-(k)//(m-1)
if(x%2==0):
y=k%(m-1)+2
else:
y=m-k%(m-1)
print(x,y)
| python | code_algorithm | [
{
"input": "4 3 0\n",
"output": "1 1\n"
},
{
"input": "4 3 7\n",
"output": "3 2\n"
},
{
"input": "4 3 11\n",
"output": "1 2\n"
},
{
"input": "9213788 21936127 8761236\n",
"output": "8761237 1\n"
},
{
"input": "2182 23967 52288026\n",
"output": "1 7969\n"
},
{
"input": "4 5 4\n",
"output": "4 2\n"
},
{
"input": "4 5 17\n",
"output": "1 4\n"
},
{
"input": "6 9 43\n",
"output": "2 7\n"
},
{
"input": "4 4 6\n",
"output": "4 4\n"
},
{
"input": "1000000000 1000000000 999999999\n",
"output": "1000000000 1\n"
},
{
"input": "636553724 546535019 115079316355948443\n",
"output": "425992073 546535018\n"
},
{
"input": "6 8 15\n",
"output": "5 6\n"
},
{
"input": "4 5 13\n",
"output": "2 3\n"
},
{
"input": "6 6 6\n",
"output": "6 2\n"
},
{
"input": "978642410 789244500 1234861616400\n",
"output": "978640847 495422447\n"
},
{
"input": "6666 969696 6667\n",
"output": "6666 3\n"
},
{
"input": "21726 5447 14771\n",
"output": "14772 1\n"
},
{
"input": "43534 432423 53443\n",
"output": "43534 9911\n"
},
{
"input": "4 4 10\n",
"output": "2 2\n"
},
{
"input": "4 7 10\n",
"output": "3 7\n"
},
{
"input": "6 5 6\n",
"output": "6 2\n"
},
{
"input": "999381438 840037557 128928432510450944\n",
"output": "845902072 12\n"
},
{
"input": "839664176 535164910 441498526835463771\n",
"output": "14687578 15\n"
},
{
"input": "4 5 12\n",
"output": "2 2\n"
},
{
"input": "4 2 6\n",
"output": "2 2\n"
},
{
"input": "4 4 5\n",
"output": "4 3\n"
},
{
"input": "4 4 4\n",
"output": "4 2\n"
},
{
"input": "595261150 794915864 332353903994901365\n",
"output": "177161677 794915848\n"
},
{
"input": "1000000000 789 788999999000\n",
"output": "2 578\n"
},
{
"input": "2 5 5\n",
"output": "2 5\n"
},
{
"input": "803521870 958373820 689637244594465863\n",
"output": "83930798 27\n"
},
{
"input": "999995712 999993076 999988788028978212\n",
"output": "1 711901\n"
},
{
"input": "84 68 4248\n",
"output": "22 12\n"
},
{
"input": "1000000000 1000000000 999999999999999999\n",
"output": "1 2\n"
},
{
"input": "1000000000 1000000000 3000000000\n",
"output": "999999998 4\n"
},
{
"input": "1000000000 2 1999999999\n",
"output": "1 2\n"
},
{
"input": "6 4 8\n",
"output": "6 4\n"
},
{
"input": "4 3 6\n",
"output": "3 3\n"
},
{
"input": "2 3 2\n",
"output": "2 2\n"
},
{
"input": "6 3 7\n",
"output": "6 3\n"
},
{
"input": "2 3 4\n",
"output": "1 3\n"
},
{
"input": "10 3 18\n",
"output": "6 2\n"
},
{
"input": "99999998 8888888 77777777777\n",
"output": "99991260 6683175\n"
},
{
"input": "4 3 8\n",
"output": "2 2\n"
},
{
"input": "742860584 671970249 260211607929646490\n",
"output": "355623786 4\n"
},
{
"input": "6 6 18\n",
"output": "4 4\n"
},
{
"input": "4 3 9\n",
"output": "2 3\n"
},
{
"input": "4 3 5\n",
"output": "4 3\n"
},
{
"input": "500 100 800\n",
"output": "497 97\n"
},
{
"input": "2 5 6\n",
"output": "1 5\n"
},
{
"input": "978642410 789244500 12348616164\n",
"output": "978642396 320550770\n"
},
{
"input": "4 7 16\n",
"output": "2 2\n"
},
{
"input": "6 6 9\n",
"output": "6 5\n"
},
{
"input": "887584278 701990442 578292377747447929\n",
"output": "63794746 41\n"
},
{
"input": "4 6 8\n",
"output": "4 6\n"
},
{
"input": "2 3 3\n",
"output": "2 3\n"
},
{
"input": "999999998 999999998 999999995000000005\n",
"output": "2 999999997\n"
},
{
"input": "1000000000 1000000000 1999999998\n",
"output": "1000000000 1000000000\n"
},
{
"input": "2 2 3\n",
"output": "1 2\n"
},
{
"input": "6 5 17\n",
"output": "4 5\n"
},
{
"input": "6 6 16\n",
"output": "4 2\n"
},
{
"input": "6 5 18\n",
"output": "3 5\n"
},
{
"input": "1000000000 1000000000 2000000500\n",
"output": "999999999 999999499\n"
},
{
"input": "4 4 12\n",
"output": "2 4\n"
},
{
"input": "28 3 1\n",
"output": "2 1\n"
},
{
"input": "2 4 5\n",
"output": "1 4\n"
},
{
"input": "949547590 305226065 138144146668766087\n",
"output": "496951426 3\n"
},
{
"input": "4 5 5\n",
"output": "4 3\n"
},
{
"input": "621282132 311996010 98597740967720109\n",
"output": "305259691 311996002\n"
},
{
"input": "999999998 1000000000 1000000998999999\n",
"output": "998999998 3\n"
},
{
"input": "993142186 628701115 555947810764442157\n",
"output": "108862204 25\n"
},
{
"input": "6 4 9\n",
"output": "5 4\n"
},
{
"input": "6 4 12\n",
"output": "4 2\n"
},
{
"input": "548492800 434105920 179638683192075937\n",
"output": "134679777 434105920\n"
},
{
"input": "999999596 999999631 999999226999090676\n",
"output": "1 1058401\n"
},
{
"input": "2 2 2\n",
"output": "2 2\n"
},
{
"input": "999993774 999998283 999992057010529542\n",
"output": "1 160501\n"
},
{
"input": "10 6 15\n",
"output": "9 6\n"
},
{
"input": "4 7 8\n",
"output": "4 6\n"
},
{
"input": "999994900 999993699 999988599028973300\n",
"output": "1 3161801\n"
},
{
"input": "999999924 999999983 999999906999879972\n",
"output": "1 121321\n"
},
{
"input": "4 6 15\n",
"output": "2 3\n"
},
{
"input": "656369902 872526042 566305269065863364\n",
"output": "7328794 36\n"
},
{
"input": "4 3 4\n",
"output": "4 2\n"
}
] | code_contests | python | 0 | 4adf07184def5795c5d8632ce76140b5 |
Recently Vasya found a golden ticket — a sequence which consists of n digits a_1a_2... a_n. Vasya considers a ticket to be lucky if it can be divided into two or more non-intersecting segments with equal sums. For example, ticket 350178 is lucky since it can be divided into three segments 350, 17 and 8: 3+5+0=1+7=8. Note that each digit of sequence should belong to exactly one segment.
Help Vasya! Tell him if the golden ticket he found is lucky or not.
Input
The first line contains one integer n (2 ≤ n ≤ 100) — the number of digits in the ticket.
The second line contains n digits a_1 a_2 ... a_n (0 ≤ a_i ≤ 9) — the golden ticket. Digits are printed without spaces.
Output
If the golden ticket is lucky then print "YES", otherwise print "NO" (both case insensitive).
Examples
Input
5
73452
Output
YES
Input
4
1248
Output
NO
Note
In the first example the ticket can be divided into 7, 34 and 52: 7=3+4=5+2.
In the second example it is impossible to divide ticket into segments with equal sum.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
s = input()
arr = list()
arr.append(int(s[0]))
summ = arr[0]
bigflg = False
for i in range(1,len(s)):
arr.append(int(s[i]))
summ+=arr[i]
for i in range(2,len(s)+1):
if summ % i == 0:
amount = summ / i
sm = 0
flg = True
for j in range(len(arr)):
sm += arr[j]
if (sm > amount):
flg = False
break
if (sm == amount):
sm = 0
if sm==0 and flg:
bigflg = True
print('YES')
break
if not bigflg:
print('NO')
| python | code_algorithm | [
{
"input": "4\n1248\n",
"output": "NO\n"
},
{
"input": "5\n73452\n",
"output": "YES\n"
},
{
"input": "7\n5541514\n",
"output": "YES\n"
},
{
"input": "20\n69325921242281090228\n",
"output": "NO\n"
},
{
"input": "3\n222\n",
"output": "YES\n"
},
{
"input": "11\n24954512677\n",
"output": "NO\n"
},
{
"input": "3\n102\n",
"output": "NO\n"
},
{
"input": "3\n552\n",
"output": "NO\n"
},
{
"input": "95\n63839630788973501705593955617737116537536256623669215818613983033319316372125831199446308351430\n",
"output": "YES\n"
},
{
"input": "6\n303030\n",
"output": "YES\n"
},
{
"input": "2\n00\n",
"output": "YES\n"
},
{
"input": "4\n6619\n",
"output": "NO\n"
},
{
"input": "89\n48529517761848681629105032446942740017666077684799424820853864981046129532307202343543879\n",
"output": "NO\n"
},
{
"input": "2\n55\n",
"output": "YES\n"
},
{
"input": "4\n2351\n",
"output": "NO\n"
},
{
"input": "7\n1111119\n",
"output": "NO\n"
},
{
"input": "4\n3331\n",
"output": "NO\n"
},
{
"input": "11\n77741223101\n",
"output": "YES\n"
},
{
"input": "4\n3013\n",
"output": "NO\n"
},
{
"input": "15\n333703919182090\n",
"output": "YES\n"
},
{
"input": "15\n876799033969943\n",
"output": "YES\n"
},
{
"input": "8\n11111111\n",
"output": "YES\n"
},
{
"input": "3\n000\n",
"output": "YES\n"
},
{
"input": "3\n343\n",
"output": "NO\n"
},
{
"input": "2\n44\n",
"output": "YES\n"
},
{
"input": "2\n02\n",
"output": "NO\n"
},
{
"input": "14\n34732091671571\n",
"output": "YES\n"
},
{
"input": "4\n2680\n",
"output": "YES\n"
},
{
"input": "95\n98283499944967186695990624831960528372353708412534683491931125807866037495977770567651207842390\n",
"output": "YES\n"
},
{
"input": "7\n0010120\n",
"output": "YES\n"
},
{
"input": "90\n170996575076655992395856243508145635272750429329255192493277000774678782094281745394590857\n",
"output": "NO\n"
},
{
"input": "7\n0120110\n",
"output": "NO\n"
},
{
"input": "20\n48279781257539808651\n",
"output": "NO\n"
},
{
"input": "3\n131\n",
"output": "NO\n"
},
{
"input": "10\n9410491089\n",
"output": "YES\n"
},
{
"input": "5\n77777\n",
"output": "YES\n"
},
{
"input": "5\n11980\n",
"output": "NO\n"
},
{
"input": "5\n53781\n",
"output": "NO\n"
},
{
"input": "5\n00000\n",
"output": "YES\n"
},
{
"input": "15\n771125622965333\n",
"output": "YES\n"
},
{
"input": "8\n54174760\n",
"output": "YES\n"
},
{
"input": "3\n555\n",
"output": "YES\n"
},
{
"input": "3\n010\n",
"output": "NO\n"
},
{
"input": "4\n1001\n",
"output": "YES\n"
},
{
"input": "4\n4939\n",
"output": "NO\n"
},
{
"input": "3\n300\n",
"output": "NO\n"
},
{
"input": "4\n0760\n",
"output": "NO\n"
},
{
"input": "100\n7876460771493995217591961791564105527925397369693556696278466376824002802517154352401808638978375899\n",
"output": "NO\n"
},
{
"input": "5\n30213\n",
"output": "YES\n"
},
{
"input": "4\n3345\n",
"output": "NO\n"
},
{
"input": "3\n100\n",
"output": "NO\n"
},
{
"input": "84\n123608423980567916563149282633127550576921328162851174479585123236498689270768303090\n",
"output": "YES\n"
},
{
"input": "2\n11\n",
"output": "YES\n"
},
{
"input": "6\n810214\n",
"output": "YES\n"
},
{
"input": "94\n7034965617675188707622087662902669462864299620896813095196728648483805681846217732949974650779\n",
"output": "NO\n"
},
{
"input": "93\n422951129271016503700234397427203319704940397318938157846153922624198061914374358965386132849\n",
"output": "YES\n"
},
{
"input": "91\n2051541782278415888842119452926140047121264880418474037041217527775760373306969266517205174\n",
"output": "NO\n"
},
{
"input": "93\n745805743007484239743029351125106816821581657001902307029649638908353562984680888269297002308\n",
"output": "YES\n"
},
{
"input": "7\n1233321\n",
"output": "YES\n"
},
{
"input": "4\n1213\n",
"output": "NO\n"
},
{
"input": "3\n001\n",
"output": "NO\n"
},
{
"input": "100\n0809740931424957283280264749151125408689778966769781910603952566405858112111930579193115510555198933\n",
"output": "YES\n"
},
{
"input": "100\n4818858843973413173925628155746968198939484726544502550668299768135121284562358161389491805498328723\n",
"output": "YES\n"
},
{
"input": "9\n122222211\n",
"output": "NO\n"
},
{
"input": "15\n923556472267622\n",
"output": "YES\n"
},
{
"input": "6\n235555\n",
"output": "YES\n"
},
{
"input": "2\n36\n",
"output": "NO\n"
},
{
"input": "20\n62452246020300774037\n",
"output": "NO\n"
},
{
"input": "99\n999999999999999999999999999999999999999999999918888888888888888888888888888888888888888888888888887\n",
"output": "YES\n"
},
{
"input": "7\n1112111\n",
"output": "NO\n"
},
{
"input": "10\n7232095599\n",
"output": "NO\n"
},
{
"input": "75\n701550968134602984948768446130093645674414572984517902437769409395298622678\n",
"output": "NO\n"
},
{
"input": "31\n1111111111111111111111111111111\n",
"output": "YES\n"
},
{
"input": "100\n5492768358492023832426755085884370126192363497614837472363037754120965150617427992655444750828994630\n",
"output": "NO\n"
},
{
"input": "92\n14066331375782869025116943746607349076775655572332728568031635806727426324069498971915382378\n",
"output": "NO\n"
},
{
"input": "100\n4360837235306857829226262079948050131795231482102447137288804547991971660484969090651046154392003840\n",
"output": "YES\n"
},
{
"input": "3\n514\n",
"output": "YES\n"
},
{
"input": "4\n7435\n",
"output": "NO\n"
},
{
"input": "12\n196493527920\n",
"output": "NO\n"
},
{
"input": "3\n101\n",
"output": "YES\n"
},
{
"input": "100\n1481434020093151013248488915859811727012058656675018437252629813973080568161159615248610583559902826\n",
"output": "NO\n"
},
{
"input": "3\n111\n",
"output": "YES\n"
},
{
"input": "4\n1088\n",
"output": "NO\n"
},
{
"input": "3\n221\n",
"output": "NO\n"
},
{
"input": "8\n00020200\n",
"output": "YES\n"
},
{
"input": "5\n11111\n",
"output": "YES\n"
}
] | code_contests | python | 0.4 | db2f3897a9a3d45bbb9591cfab740099 |
Today, Mezo is playing a game. Zoma, a character in that game, is initially at position x = 0. Mezo starts sending n commands to Zoma. There are two possible commands:
* 'L' (Left) sets the position x: =x - 1;
* 'R' (Right) sets the position x: =x + 1.
Unfortunately, Mezo's controller malfunctions sometimes. Some commands are sent successfully and some are ignored. If the command is ignored then the position x doesn't change and Mezo simply proceeds to the next command.
For example, if Mezo sends commands "LRLR", then here are some possible outcomes (underlined commands are sent successfully):
* "LRLR" — Zoma moves to the left, to the right, to the left again and to the right for the final time, ending up at position 0;
* "LRLR" — Zoma recieves no commands, doesn't move at all and ends up at position 0 as well;
* "LRLR" — Zoma moves to the left, then to the left again and ends up in position -2.
Mezo doesn't know which commands will be sent successfully beforehand. Thus, he wants to know how many different positions may Zoma end up at.
Input
The first line contains n (1 ≤ n ≤ 10^5) — the number of commands Mezo sends.
The second line contains a string s of n commands, each either 'L' (Left) or 'R' (Right).
Output
Print one integer — the number of different positions Zoma may end up at.
Example
Input
4
LRLR
Output
5
Note
In the example, Zoma may end up anywhere between -2 and 2.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def func(n):
x = input()
ans = 0
l_counter = x.count('L')
r_counter = x.count('R')
y = 0 - l_counter
z = 0 + r_counter
for i in range(y,z+1):
ans += 1
print(ans)
n = int(input())
func(n) | python | code_algorithm | [
{
"input": "4\nLRLR\n",
"output": "5\n"
},
{
"input": "12\nLLLLLLLLLLLL\n",
"output": "13\n"
},
{
"input": "2\nLR\n",
"output": "3\n"
},
{
"input": "1\nR\n",
"output": "2\n"
},
{
"input": "13\nLRLLLLRRLLRLR\n",
"output": "14\n"
},
{
"input": "1\nL\n",
"output": "2\n"
}
] | code_contests | python | 0.9 | 9aa45e0939896c25d8f257c8ad842659 |
A permutation of length n is an array consisting of n distinct integers from 1 to n in arbitrary order. For example, [2,3,1,5,4] is a permutation, but [1,2,2] is not a permutation (2 appears twice in the array) and [1,3,4] is also not a permutation (n=3 but there is 4 in the array).
For a positive integer n, we call a permutation p of length n good if the following condition holds for every pair i and j (1 ≤ i ≤ j ≤ n) —
* (p_i OR p_{i+1} OR … OR p_{j-1} OR p_{j}) ≥ j-i+1, where OR denotes the [bitwise OR operation.](https://en.wikipedia.org/wiki/Bitwise_operation#OR)
In other words, a permutation p is good if for every subarray of p, the OR of all elements in it is not less than the number of elements in that subarray.
Given a positive integer n, output any good permutation of length n. We can show that for the given constraints such a permutation always exists.
Input
Each test contains multiple test cases. The first line contains the number of test cases t (1 ≤ t ≤ 100). Description of the test cases follows.
The first and only line of every test case contains a single integer n (1 ≤ n ≤ 100).
Output
For every test, output any good permutation of length n on a separate line.
Example
Input
3
1
3
7
Output
1
3 1 2
4 3 5 2 7 1 6
Note
For n = 3, [3,1,2] is a good permutation. Some of the subarrays are listed below.
* 3 OR 1 = 3 ≥ 2 (i = 1,j = 2)
* 3 OR 1 OR 2 = 3 ≥ 3 (i = 1,j = 3)
* 1 OR 2 = 3 ≥ 2 (i = 2,j = 3)
* 1 ≥ 1 (i = 2,j = 2)
Similarly, you can verify that [4,3,5,2,7,1,6] is also good.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import sys
input = sys.stdin.readline
from collections import *
for _ in range(int(input())):
n = int(input())
print(*[i for i in range(1, n+1)]) | python | code_algorithm | [
{
"input": "3\n1\n3\n7\n",
"output": "1\n1 2 3\n1 2 3 4 5 6 7\n"
},
{
"input": "1\n77\n",
"output": "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77\n"
},
{
"input": "3\n1\n3\n7\n",
"output": "1\n1 2 3\n1 2 3 4 5 6 7\n"
},
{
"input": "100\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n21\n22\n23\n24\n25\n26\n27\n28\n29\n30\n31\n32\n33\n34\n35\n36\n37\n38\n39\n40\n41\n42\n43\n44\n45\n46\n47\n48\n49\n50\n51\n52\n53\n54\n55\n56\n57\n58\n59\n60\n61\n62\n63\n64\n65\n66\n67\n68\n69\n70\n71\n72\n73\n74\n75\n76\n77\n78\n79\n80\n81\n82\n83\n84\n85\n86\n87\n88\n89\n90\n91\n92\n93\n94\n95\n96\n97\n98\n99\n100\n",
"output": "1\n1 2\n1 2 3\n1 2 3 4\n1 2 3 4 5\n1 2 3 4 5 6\n1 2 3 4 5 6 7\n1 2 3 4 5 6 7 8\n1 2 3 4 5 6 7 8 9\n1 2 3 4 5 6 7 8 9 10\n1 2 3 4 5 6 7 8 9 10 11\n1 2 3 4 5 6 7 8 9 10 11 12\n1 2 3 4 5 6 7 8 9 10 11 12 13\n1 2 3 4 5 6 7 8 9 10 11 12 13 14\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100\n"
},
{
"input": "1\n57\n",
"output": "1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57\n"
}
] | code_contests | python | 0 | 662b50e8191597219b6fd97f824fbc5a |
One day little Vasya found mom's pocket book. The book had n names of her friends and unusually enough, each name was exactly m letters long. Let's number the names from 1 to n in the order in which they are written.
As mom wasn't home, Vasya decided to play with names: he chose three integers i, j, k (1 ≤ i < j ≤ n, 1 ≤ k ≤ m), then he took names number i and j and swapped their prefixes of length k. For example, if we take names "CBDAD" and "AABRD" and swap their prefixes with the length of 3, the result will be names "AABAD" and "CBDRD".
You wonder how many different names Vasya can write instead of name number 1, if Vasya is allowed to perform any number of the described actions. As Vasya performs each action, he chooses numbers i, j, k independently from the previous moves and his choice is based entirely on his will. The sought number can be very large, so you should only find it modulo 1000000007 (109 + 7).
Input
The first input line contains two integers n and m (1 ≤ n, m ≤ 100) — the number of names and the length of each name, correspondingly. Then n lines contain names, each name consists of exactly m uppercase Latin letters.
Output
Print the single number — the number of different names that could end up in position number 1 in the pocket book after the applying the procedures described above. Print the number modulo 1000000007 (109 + 7).
Examples
Input
2 3
AAB
BAA
Output
4
Input
4 5
ABABA
BCGDG
AAAAA
YABSA
Output
216
Note
In the first sample Vasya can get the following names in the position number 1: "AAB", "AAA", "BAA" and "BAB".
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | mod=10**9+7
n,m=map(int,input().split())
mat=[]
for _ in range(n):
s=input()
mat.append(s)
b=ord("A")
s=[False]*255
res=1
for j in range(m):
for i in range(b,b+26):
s[i]=False
for i in range(n):
s[ord(mat[i][j])]=True
r=0
for i in range(b,b+26):
if(s[i]):r+=1
res*=r
print(res%mod) | python | code_algorithm | [
{
"input": "2 3\nAAB\nBAA\n",
"output": "4\n"
},
{
"input": "4 5\nABABA\nBCGDG\nAAAAA\nYABSA\n",
"output": "216\n"
},
{
"input": "100 1\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nA\nB\n",
"output": "14\n"
},
{
"input": "2 2\nAA\nBB\n",
"output": "4\n"
},
{
"input": "9 23\nOILBYKHRGMPENVFNHLSIUOW\nLPJFHTUQUINAALRDGLSQUXR\nLYYJJEBNZATAFQWTDZSPUNZ\nHSJPIQKKWWERJZIEMLCZUKI\nOJYIEYDGPFWRHCMISJCCUEM\nLMGKZVFYIVDRTIHBWPCNUTG\nUBGGNCITVHAIPKXCLTSAULQ\nOWSAWUOXQDBSXXBHTLSXUVD\nUGQTIZQPBGMASRQPVPSFUWK\n",
"output": "454717784\n"
},
{
"input": "100 1\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\nA\nB\n",
"output": "2\n"
},
{
"input": "1 100\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n",
"output": "1\n"
},
{
"input": "1 20\nAAAAAAAAAAAAAAAAAAAA\n",
"output": "1\n"
},
{
"input": "1 10\nAAAAAAAAAA\n",
"output": "1\n"
},
{
"input": "5 14\nAQRXUQQNSKZPGC\nDTTKSPFGGVCLPT\nVLZQWWESCHDTAZ\nCOKOWDWDRUOMHP\nXDTRBIZTTCIDGS\n",
"output": "124999979\n"
},
{
"input": "5 60\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB\nCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC\nDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD\nEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE\n",
"output": "449874206\n"
},
{
"input": "2 2\nNS\nPD\n",
"output": "4\n"
},
{
"input": "2 8\nAAAAAAAA\nBBBBBBBB\n",
"output": "256\n"
},
{
"input": "20 14\nJNFKBBBJYZHWQE\nLBOKZCPFNKDBJY\nXKNWGHQHIOXUPF\nDDNRUKVUGHWMXW\nMTIZFNAAFEAPHX\nIXBQOOHEULZYHU\nMRCSREUEOOMUUN\nHJTSQWKUFYZDQU\nGMCMUZCOPRVEIQ\nXBKKGGJECOBLTH\nXXHTLXCNJZJUAF\nVLJRKXXXWMTPKZ\nPTYMNPTBBCWKAD\nQYJGOBUBHMEDYE\nGTKUUVVNKAHTUI\nZNKXYZPCYLBZFP\nQCBLJTRMBDWNNE\nTDOKJOBKEOVNLZ\nFKZUITYAFJOQIM\nUWQNSGLXEEIRWF\n",
"output": "515139391\n"
},
{
"input": "20 1\nA\nB\nC\nD\nE\nF\nG\nA\nB\nC\nD\nE\nF\nG\nA\nB\nC\nD\nE\nF\n",
"output": "7\n"
},
{
"input": "25 4\nLVKG\nMICU\nZHKW\nLFGG\nOWQO\nLCQG\nLVXU\nOUKB\nLNQX\nZJTO\nOOQX\nLVQP\nMFQB\nMRQV\nOIQH\nOPXX\nXFKU\nFCQB\nZPKH\nLVCH\nNFCU\nOVQW\nOZKU\nLFHX\nLPXO\n",
"output": "5733\n"
},
{
"input": "50 4\nAAAA\nBBBB\nCCCC\nDDDD\nEEEE\nFFFF\nGGGG\nHHHH\nIIII\nJJJJ\nAAAA\nBBBB\nCCCC\nDDDD\nEEEE\nFFFF\nGGGG\nHHHH\nIIII\nJJJJ\nAAAA\nBBBB\nCCCC\nDDDD\nEEEE\nFFFF\nGGGG\nHHHH\nIIII\nJJJJ\nAAAA\nBBBB\nCCCC\nDDDD\nEEEE\nFFFF\nGGGG\nHHHH\nIIII\nJJJJ\nAAAA\nBBBB\nCCCC\nDDDD\nEEEE\nFFFF\nGGGG\nHHHH\nIIII\nJJJJ\n",
"output": "10000\n"
},
{
"input": "3 4\nPJKD\nNFJX\nFGFK\n",
"output": "81\n"
},
{
"input": "100 1\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n",
"output": "1\n"
},
{
"input": "40 7\nPNTVVER\nPAHTQDR\nRXMJVAS\nVIQNLYC\nILPUSVX\nYJOXQDJ\nSEFODTO\nOTJMREL\nLIQRZGD\nLBJJPOR\nRUTYHQO\nRIWEPBD\nKQUMFIB\nISTRRYH\nXBTOTGK\nRFQODEY\nHDSTZTP\nYCXFAGL\nAREGRFU\nLELZUYU\nGVABDKH\nFJAMMME\nACVULXE\nJHVPJAS\nAAQNMBX\nJJGUCXG\nOQATILQ\nNEOSHJM\nHFLWOFM\nICYEQHY\nFACGLYP\nPLLXJEQ\nDCHXYPB\nAGDDZJJ\nLSQRXTN\nHDQZXIY\nNAHDDWW\nQCMXRQN\nFDUDSZO\nHKBEVTW\n",
"output": "206575993\n"
},
{
"input": "10 10\nAAAAAAAAAA\nBBBBBBBBBB\nCCCCCCCCCC\nDDDDDDDDDD\nAAAAAAAAAA\nBBBBBBBBBB\nCCCCCCCCCC\nDDDDDDDDDD\nAAAAAAAAAA\nBBBBBBBBBB\n",
"output": "1048576\n"
},
{
"input": "30 10\nUTNTGOKZYJ\nQHOUHNYZVW\nLTVGHJRZVW\nMZHYHOLZYJ\nERYEUEPZYE\nUZDBFTURYJ\nRVSMQTIZGW\nWDJQHMIRYY\nKCORHQPZYE\nRRPLFOZZVY\nJTXMFNNNYJ\nMVTGGOZZVV\nEHAFFNUZVF\nLBRNWJZNYE\nJVMOHTPZYJ\nWTARFJLZVV\nLVJCWOURVW\nLCLQFJYRVV\nQVBVGNJRYF\nNTZGHOLRYE\nMGQKHOUPYJ\nRRSSBXPZYJ\nRYCRGTLZYJ\nJRDEGNKRVW\nRZKFGHYRVG\nMDJBFNIZYG\nMPLWHXIZYE\nSRZMHMURVE\nMTEBBMRZYJ\nJPJIFOLZYM\n",
"output": "919913906\n"
},
{
"input": "1 1\nE\n",
"output": "1\n"
},
{
"input": "100 1\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\nW\nX\nY\nZ\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\nW\nX\nY\nZ\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\nW\nX\nY\nZ\nA\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\n",
"output": "26\n"
},
{
"input": "4 5\nSXFMY\nATHLM\nKDDQW\nZWGDS\n",
"output": "1024\n"
}
] | code_contests | python | 0.9 | 9a208a9dd693293a689761984dd56b0c |
Vasya studies divisibility rules at school. Here are some of them:
* Divisibility by 2. A number is divisible by 2 if and only if its last digit is divisible by 2 or in other words, is even.
* Divisibility by 3. A number is divisible by 3 if and only if the sum of its digits is divisible by 3.
* Divisibility by 4. A number is divisible by 4 if and only if its last two digits form a number that is divisible by 4.
* Divisibility by 5. A number is divisible by 5 if and only if its last digit equals 5 or 0.
* Divisibility by 6. A number is divisible by 6 if and only if it is divisible by 2 and 3 simultaneously (that is, if the last digit is even and the sum of all digits is divisible by 3).
* Divisibility by 7. Vasya doesn't know such divisibility rule.
* Divisibility by 8. A number is divisible by 8 if and only if its last three digits form a number that is divisible by 8.
* Divisibility by 9. A number is divisible by 9 if and only if the sum of its digits is divisible by 9.
* Divisibility by 10. A number is divisible by 10 if and only if its last digit is a zero.
* Divisibility by 11. A number is divisible by 11 if and only if the sum of digits on its odd positions either equals to the sum of digits on the even positions, or they differ in a number that is divisible by 11.
Vasya got interested by the fact that some divisibility rules resemble each other. In fact, to check a number's divisibility by 2, 4, 5, 8 and 10 it is enough to check fulfiling some condition for one or several last digits. Vasya calls such rules the 2-type rules.
If checking divisibility means finding a sum of digits and checking whether the sum is divisible by the given number, then Vasya calls this rule the 3-type rule (because it works for numbers 3 and 9).
If we need to find the difference between the sum of digits on odd and even positions and check whether the difference is divisible by the given divisor, this rule is called the 11-type rule (it works for number 11).
In some cases we should divide the divisor into several factors and check whether rules of different types (2-type, 3-type or 11-type) work there. For example, for number 6 we check 2-type and 3-type rules, for number 66 we check all three types. Such mixed divisibility rules are called 6-type rules.
And finally, there are some numbers for which no rule works: neither 2-type, nor 3-type, nor 11-type, nor 6-type. The least such number is number 7, so we'll say that in such cases the mysterious 7-type rule works, the one that Vasya hasn't discovered yet.
Vasya's dream is finding divisibility rules for all possible numbers. He isn't going to stop on the decimal numbers only. As there are quite many numbers, ha can't do it all by himself. Vasya asked you to write a program that determines the divisibility rule type in the b-based notation for the given divisor d.
Input
The first input line contains two integers b and d (2 ≤ b, d ≤ 100) — the notation system base and the divisor. Both numbers are given in the decimal notation.
Output
On the first output line print the type of the rule in the b-based notation system, where the divisor is d: "2-type", "3-type", "11-type", "6-type" or "7-type". If there are several such types, print the one that goes earlier in the given sequence. If a number belongs to the 2-type, print on the second line the least number of the last b-based digits that we will need to use to check the divisibility.
Examples
Input
10 10
Output
2-type
1
Input
2 3
Output
11-type
Note
The divisibility rule for number 3 in binary notation looks as follows: "A number is divisible by 3 if and only if the sum of its digits that occupy the even places differs from the sum of digits that occupy the odd places, in a number that is divisible by 3". That's an 11-type rule. For example, 2110 = 101012. For it the sum of digits on odd positions equals 1 + 1 + 1 = 3, an on even positions — 0 + 0 = 0. The rule works and the number is divisible by 3.
In some notations a number can fit into the 3-type rule and the 11-type rule. In this case the correct answer is "3-type".
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | b, d = map(int, input().split())
for i in range(1, 10):
if (b**i) % d == 0:
print("2-type")
print(i)
exit()
if (b-1) % d == 0:
print("3-type")
exit()
if (b+1) % d == 0:
print("11-type")
exit()
for i in range(2, d+1):
if d % i == 0:
x = 1
while d % i == 0:
d /= i
x *= i
if (b**10) % x != 0 and (b+1) % x != 0 and (b-1) % x != 0:
print("7-type")
break
else:
print("6-type")
| python | code_algorithm | [
{
"input": "2 3\n",
"output": "11-type\n"
},
{
"input": "10 10\n",
"output": "2-type\n1\n"
},
{
"input": "5 2\n",
"output": "3-type\n"
},
{
"input": "2 5\n",
"output": "7-type\n"
},
{
"input": "8 5\n",
"output": "7-type\n"
},
{
"input": "2 32\n",
"output": "2-type\n5\n"
},
{
"input": "4 5\n",
"output": "11-type\n"
},
{
"input": "3 5\n",
"output": "7-type\n"
},
{
"input": "10 25\n",
"output": "2-type\n2\n"
},
{
"input": "7 6\n",
"output": "3-type\n"
},
{
"input": "10 81\n",
"output": "7-type\n"
},
{
"input": "4 3\n",
"output": "3-type\n"
},
{
"input": "10 3\n",
"output": "3-type\n"
},
{
"input": "2 6\n",
"output": "6-type\n"
},
{
"input": "8 4\n",
"output": "2-type\n1\n"
},
{
"input": "29 10\n",
"output": "11-type\n"
},
{
"input": "6 5\n",
"output": "3-type\n"
},
{
"input": "7 8\n",
"output": "11-type\n"
},
{
"input": "70 14\n",
"output": "2-type\n1\n"
},
{
"input": "5 4\n",
"output": "3-type\n"
},
{
"input": "77 15\n",
"output": "7-type\n"
},
{
"input": "10 8\n",
"output": "2-type\n3\n"
},
{
"input": "2 8\n",
"output": "2-type\n3\n"
},
{
"input": "10 14\n",
"output": "7-type\n"
},
{
"input": "60 42\n",
"output": "7-type\n"
},
{
"input": "3 6\n",
"output": "6-type\n"
},
{
"input": "10 4\n",
"output": "2-type\n2\n"
},
{
"input": "4 8\n",
"output": "2-type\n2\n"
},
{
"input": "10 2\n",
"output": "2-type\n1\n"
},
{
"input": "30 100\n",
"output": "2-type\n2\n"
},
{
"input": "10 16\n",
"output": "2-type\n4\n"
},
{
"input": "91 49\n",
"output": "2-type\n2\n"
},
{
"input": "17 12\n",
"output": "6-type\n"
},
{
"input": "2 7\n",
"output": "7-type\n"
},
{
"input": "10 40\n",
"output": "2-type\n3\n"
},
{
"input": "6 3\n",
"output": "2-type\n1\n"
},
{
"input": "7 4\n",
"output": "11-type\n"
},
{
"input": "93 8\n",
"output": "7-type\n"
},
{
"input": "10 32\n",
"output": "2-type\n5\n"
},
{
"input": "10 64\n",
"output": "2-type\n6\n"
},
{
"input": "4 2\n",
"output": "2-type\n1\n"
},
{
"input": "97 97\n",
"output": "2-type\n1\n"
},
{
"input": "6 2\n",
"output": "2-type\n1\n"
},
{
"input": "3 81\n",
"output": "2-type\n4\n"
},
{
"input": "11 6\n",
"output": "11-type\n"
},
{
"input": "8 6\n",
"output": "6-type\n"
},
{
"input": "8 3\n",
"output": "11-type\n"
},
{
"input": "3 3\n",
"output": "2-type\n1\n"
},
{
"input": "26 40\n",
"output": "6-type\n"
},
{
"input": "45 70\n",
"output": "7-type\n"
},
{
"input": "10 12\n",
"output": "6-type\n"
},
{
"input": "91 23\n",
"output": "11-type\n"
},
{
"input": "76 7\n",
"output": "11-type\n"
},
{
"input": "10 6\n",
"output": "6-type\n"
},
{
"input": "100 70\n",
"output": "7-type\n"
},
{
"input": "6 6\n",
"output": "2-type\n1\n"
},
{
"input": "6 7\n",
"output": "11-type\n"
},
{
"input": "29 7\n",
"output": "3-type\n"
},
{
"input": "5 3\n",
"output": "11-type\n"
},
{
"input": "10 13\n",
"output": "7-type\n"
},
{
"input": "6 4\n",
"output": "2-type\n2\n"
},
{
"input": "10 66\n",
"output": "6-type\n"
},
{
"input": "6 96\n",
"output": "2-type\n5\n"
},
{
"input": "59 87\n",
"output": "6-type\n"
},
{
"input": "45 75\n",
"output": "2-type\n2\n"
},
{
"input": "2 4\n",
"output": "2-type\n2\n"
},
{
"input": "94 60\n",
"output": "6-type\n"
},
{
"input": "2 2\n",
"output": "2-type\n1\n"
},
{
"input": "8 7\n",
"output": "3-type\n"
},
{
"input": "7 7\n",
"output": "2-type\n1\n"
},
{
"input": "59 20\n",
"output": "11-type\n"
},
{
"input": "5 8\n",
"output": "7-type\n"
},
{
"input": "6 8\n",
"output": "2-type\n3\n"
},
{
"input": "91 18\n",
"output": "3-type\n"
},
{
"input": "8 8\n",
"output": "2-type\n1\n"
},
{
"input": "10 100\n",
"output": "2-type\n2\n"
},
{
"input": "4 4\n",
"output": "2-type\n1\n"
},
{
"input": "7 3\n",
"output": "3-type\n"
},
{
"input": "99 2\n",
"output": "3-type\n"
},
{
"input": "10 20\n",
"output": "2-type\n2\n"
},
{
"input": "3 4\n",
"output": "11-type\n"
},
{
"input": "3 8\n",
"output": "7-type\n"
},
{
"input": "12 72\n",
"output": "2-type\n2\n"
},
{
"input": "5 6\n",
"output": "11-type\n"
},
{
"input": "100 66\n",
"output": "6-type\n"
},
{
"input": "10 11\n",
"output": "11-type\n"
},
{
"input": "7 2\n",
"output": "3-type\n"
},
{
"input": "10 5\n",
"output": "2-type\n1\n"
},
{
"input": "61 93\n",
"output": "6-type\n"
},
{
"input": "3 2\n",
"output": "3-type\n"
},
{
"input": "100 33\n",
"output": "3-type\n"
},
{
"input": "5 5\n",
"output": "2-type\n1\n"
},
{
"input": "2 64\n",
"output": "2-type\n6\n"
},
{
"input": "4 6\n",
"output": "6-type\n"
},
{
"input": "11 5\n",
"output": "3-type\n"
},
{
"input": "10 27\n",
"output": "7-type\n"
},
{
"input": "10 50\n",
"output": "2-type\n2\n"
},
{
"input": "5 7\n",
"output": "7-type\n"
},
{
"input": "3 7\n",
"output": "7-type\n"
},
{
"input": "7 5\n",
"output": "7-type\n"
},
{
"input": "4 7\n",
"output": "7-type\n"
},
{
"input": "10 9\n",
"output": "3-type\n"
},
{
"input": "99 20\n",
"output": "11-type\n"
},
{
"input": "59 29\n",
"output": "3-type\n"
},
{
"input": "8 2\n",
"output": "2-type\n1\n"
}
] | code_contests | python | 0 | 8f1900ffd6f27935606c7ef9a0987a4c |
The Tower of Hanoi is a well-known mathematical puzzle. It consists of three rods, and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top, thus making a conical shape.
The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules:
1. Only one disk can be moved at a time.
2. Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack i.e. a disk can only be moved if it is the uppermost disk on a stack.
3. No disk may be placed on top of a smaller disk.
With three disks, the puzzle can be solved in seven moves. The minimum number of moves required to solve a Tower of Hanoi puzzle is 2n - 1, where n is the number of disks. (c) Wikipedia.
SmallY's puzzle is very similar to the famous Tower of Hanoi. In the Tower of Hanoi puzzle you need to solve a puzzle in minimum number of moves, in SmallY's puzzle each move costs some money and you need to solve the same puzzle but for minimal cost. At the beginning of SmallY's puzzle all n disks are on the first rod. Moving a disk from rod i to rod j (1 ≤ i, j ≤ 3) costs tij units of money. The goal of the puzzle is to move all the disks to the third rod.
In the problem you are given matrix t and an integer n. You need to count the minimal cost of solving SmallY's puzzle, consisting of n disks.
Input
Each of the first three lines contains three integers — matrix t. The j-th integer in the i-th line is tij (1 ≤ tij ≤ 10000; i ≠ j). The following line contains a single integer n (1 ≤ n ≤ 40) — the number of disks.
It is guaranteed that for all i (1 ≤ i ≤ 3), tii = 0.
Output
Print a single integer — the minimum cost of solving SmallY's puzzle.
Examples
Input
0 1 1
1 0 1
1 1 0
3
Output
7
Input
0 2 2
1 0 100
1 2 0
3
Output
19
Input
0 2 1
1 0 100
1 2 0
5
Output
87
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def play(price, n):
# dp[i][j][k] - naimen'shaya stoimost' peremeshcheniya i blinov so sterzhnya j => k
# U nas vsegda est' dva varianta dejstviya:
# 1. Peremeshchaem i - 1 blin na mesto 2. Dalee, peremeshchaem i - yj blin na mesto 3. I nakonec peremeshchaem i - 1 blin na mesto 3.
# 2. Peremeshchaem i - 1 blin na mesto 3. Zatem i - yj na mesto 2, zatem i - 1 blin na mesto 1, dalee i -yj na 3-e mesto i nakonec i - 1 blin na 3 mesto
# t.e, dp[i][j][k] = min(dp[i - 1][j][k ^ j] + Price[j][k] + dp[i - 1][k ^ j][k],
# dp[i - 1][j][k] + Price[j][k ^ j] + dp[i - 1][k][j] + Price[j ^ k][k] + dp[i - 1][j][k])
dp = [[[0 for k in range(0, 4)] for j in range(0, 4)] for i in range(0, n + 1)]
for i in range(1, n + 1):
for j in range(1, 4):
for k in range(1, 4):
dp[i][j][k] = min(dp[i - 1][j][k ^ j] + price[j][k] + dp[i - 1][k ^ j][k], 2 * dp[i - 1][j][k] + price[j][k ^ j] + dp[i - 1][k][j] + price[j ^ k][k])
return dp[n][1][3]
def main():
matrix = [[0 for j in range(0, 4)] for i in range(0, 4)]
i = 1
while i < 4:
row = list(map(int, input().split()))
for j in range(1, 4):
matrix[i][j] = row[j - 1]
i += 1
n = int(input())
print(play(matrix, n))
main()
#print(play([[0, 0, 0, 0], [0, 0, 1, 1],[0, 1, 0, 1],[0, 1, 1, 0]], 3)) | python | code_algorithm | [
{
"input": "0 2 1\n1 0 100\n1 2 0\n5\n",
"output": "87\n"
},
{
"input": "0 2 2\n1 0 100\n1 2 0\n3\n",
"output": "19\n"
},
{
"input": "0 1 1\n1 0 1\n1 1 0\n3\n",
"output": "7\n"
},
{
"input": "0 9628 4599\n6755 0 5302\n5753 1995 0\n39\n",
"output": "2894220024221629\n"
},
{
"input": "0 4449 3122\n6816 0 8986\n1048 1468 0\n4\n",
"output": "73486\n"
},
{
"input": "0 2986 6350\n59 0 9863\n8674 1704 0\n40\n",
"output": "4350584259212361\n"
},
{
"input": "0 2653 5614\n9654 0 8668\n6421 133 0\n40\n",
"output": "6216516575480675\n"
},
{
"input": "0 3448 4530\n6398 0 5321\n1302 139 0\n39\n",
"output": "1967209554081624\n"
},
{
"input": "0 8246 1436\n8823 0 5285\n8283 7277 0\n39\n",
"output": "3474823247533881\n"
},
{
"input": "0 3287 5433\n6796 0 5787\n1445 6158 0\n26\n",
"output": "293974120391\n"
},
{
"input": "0 5382 7365\n7671 0 679\n3183 2634 0\n40\n",
"output": "4417349048592850\n"
},
{
"input": "0 65 3859\n6032 0 555\n6731 9490 0\n38\n",
"output": "1040962633462383\n"
},
{
"input": "0 655 1599\n4254 0 7484\n3983 9099 0\n39\n",
"output": "2158371867244476\n"
},
{
"input": "0 1429 1052\n4984 0 2116\n4479 782 0\n21\n",
"output": "5047111802\n"
},
{
"input": "0 7561 1463\n7621 0 9485\n1971 1024 0\n38\n",
"output": "1219526376186314\n"
},
{
"input": "0 1096 1637\n5625 0 4364\n8026 7246 0\n39\n",
"output": "2596191288960748\n"
},
{
"input": "0 8518 8166\n799 0 266\n7987 4940 0\n15\n",
"output": "162320667\n"
},
{
"input": "0 5222 6817\n8403 0 6167\n2424 2250 0\n39\n",
"output": "2978027243887585\n"
},
{
"input": "0 9358 745\n7093 0 7048\n1767 5267 0\n39\n",
"output": "2711090254202573\n"
},
{
"input": "0 3003 1005\n4320 0 1463\n4961 5563 0\n40\n",
"output": "3633519425831590\n"
},
{
"input": "0 3341 2142\n452 0 4434\n241 8379 0\n38\n",
"output": "740490539331253\n"
},
{
"input": "0 328 3888\n3730 0 760\n9382 6574 0\n38\n",
"output": "1073001180618872\n"
},
{
"input": "0 2957 4676\n9787 0 1241\n5147 8582 0\n8\n",
"output": "1162341\n"
},
{
"input": "0 2975 131\n4408 0 8557\n7519 8541 0\n40\n",
"output": "5516494172354496\n"
},
{
"input": "0 7600 9420\n2996 0 974\n2995 3111 0\n39\n",
"output": "2526066880932431\n"
},
{
"input": "0 1404 2399\n3960 0 9399\n7018 4159 0\n34\n",
"output": "79409173073874\n"
},
{
"input": "0 1 1\n1 0 1\n1 1 0\n1\n",
"output": "1\n"
},
{
"input": "0 3461 4834\n1096 0 3259\n8158 3363 0\n40\n",
"output": "4092687698447757\n"
},
{
"input": "0 4499 7885\n6089 0 8400\n8724 2588 0\n40\n",
"output": "7298008429373546\n"
},
{
"input": "0 5903 6945\n5521 0 2812\n8703 8684 0\n38\n",
"output": "1709923833066384\n"
},
{
"input": "0 5125 2904\n763 0 4213\n4171 3367 0\n38\n",
"output": "1013123610034430\n"
},
{
"input": "0 8392 3430\n5262 0 6256\n8590 8091 0\n29\n",
"output": "3388490535940\n"
},
{
"input": "0 5105 2640\n1902 0 9380\n302 3014 0\n38\n",
"output": "912380857210937\n"
},
{
"input": "0 7829 1008\n2914 0 2636\n4439 8654 0\n39\n",
"output": "2446779875619187\n"
},
{
"input": "0 1 100\n1 0 1\n100 1 0\n1\n",
"output": "2\n"
},
{
"input": "0 5835 1487\n6637 0 9543\n6961 6820 0\n7\n",
"output": "723638\n"
},
{
"input": "0 1177 7722\n4285 0 8901\n3880 8549 0\n40\n",
"output": "5921725291311720\n"
},
{
"input": "0 6593 2887\n9821 0 7109\n8501 917 0\n11\n",
"output": "11231429\n"
},
{
"input": "0 5638 2109\n3346 0 1684\n2770 8831 0\n40\n",
"output": "4211129534337070\n"
},
{
"input": "0 9916 3929\n5389 0 6509\n2557 4099 0\n38\n",
"output": "1482783056079892\n"
},
{
"input": "0 9965 5863\n5956 0 3340\n9497 5040 0\n38\n",
"output": "1907744300121994\n"
},
{
"input": "0 8494 3561\n8215 0 9313\n1980 9423 0\n39\n",
"output": "3798507254080314\n"
},
{
"input": "0 4085 4623\n1929 0 2793\n902 8722 0\n11\n",
"output": "7450335\n"
},
{
"input": "0 7336 3824\n3177 0 6795\n4491 7351 0\n28\n",
"output": "1538910647942\n"
},
{
"input": "0 1099 3412\n9261 0 3868\n758 8489 0\n38\n",
"output": "975259178289234\n"
},
{
"input": "0 649 576\n2780 0 6415\n7629 1233 0\n38\n",
"output": "731862427166001\n"
},
{
"input": "0 9756 5922\n9233 0 8371\n6826 8020 0\n40\n",
"output": "8928156585485415\n"
},
{
"input": "0 2990 3624\n5985 0 9822\n3494 6400 0\n15\n",
"output": "175936803\n"
},
{
"input": "0 3792 500\n1183 0 3169\n1357 9914 0\n40\n",
"output": "3176855596478157\n"
},
{
"input": "0 1446 2980\n9298 0 9679\n7865 6963 0\n38\n",
"output": "1747643190259529\n"
},
{
"input": "0 4405 3533\n8676 0 3288\n1058 5977 0\n38\n",
"output": "1089982526985246\n"
},
{
"input": "0 10000 10000\n10000 0 10000\n10000 10000 0\n40\n",
"output": "10995116277750000\n"
},
{
"input": "0 913 8129\n8352 0 4408\n9073 7625 0\n30\n",
"output": "6310499935698\n"
},
{
"input": "0 6991 1482\n1274 0 6332\n7588 5049 0\n38\n",
"output": "1272852690054827\n"
},
{
"input": "0 1655 1941\n7562 0 6518\n8541 184 0\n38\n",
"output": "1280396561454826\n"
},
{
"input": "0 6082 5094\n2704 0 991\n7522 6411 0\n40\n",
"output": "5301967237043705\n"
},
{
"input": "0 6103 5951\n3308 0 8143\n3039 2918 0\n40\n",
"output": "5710985562714285\n"
},
{
"input": "0 3844 8950\n8110 0 8591\n5977 4462 0\n7\n",
"output": "875143\n"
},
{
"input": "0 1 10\n1 0 1\n10 1 0\n1\n",
"output": "2\n"
}
] | code_contests | python | 0 | 9ca324b2007c64df718e0a5ed76f16ed |
Have you ever played Hanabi? If not, then you've got to try it out! This problem deals with a simplified version of the game.
Overall, the game has 25 types of cards (5 distinct colors and 5 distinct values). Borya is holding n cards. The game is somewhat complicated by the fact that everybody sees Borya's cards except for Borya himself. Borya knows which cards he has but he knows nothing about the order they lie in. Note that Borya can have multiple identical cards (and for each of the 25 types of cards he knows exactly how many cards of this type he has).
The aim of the other players is to achieve the state when Borya knows the color and number value of each of his cards. For that, other players can give him hints. The hints can be of two types: color hints and value hints.
A color hint goes like that: a player names some color and points at all the cards of this color.
Similarly goes the value hint. A player names some value and points at all the cards that contain the value.
Determine what minimum number of hints the other players should make for Borya to be certain about each card's color and value.
Input
The first line contains integer n (1 ≤ n ≤ 100) — the number of Borya's cards. The next line contains the descriptions of n cards. The description of each card consists of exactly two characters. The first character shows the color (overall this position can contain five distinct letters — R, G, B, Y, W). The second character shows the card's value (a digit from 1 to 5). Borya doesn't know exact order of the cards they lie in.
Output
Print a single integer — the minimum number of hints that the other players should make.
Examples
Input
2
G3 G3
Output
0
Input
4
G4 R4 R3 B3
Output
2
Input
5
B1 Y1 W1 G1 R1
Output
4
Note
In the first sample Borya already knows for each card that it is a green three.
In the second sample we can show all fours and all red cards.
In the third sample you need to make hints about any four colors.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | input()
p = {(1 << 'RGBYW'.index(c)) + (1 << int(k) + 4) for c, k in input().split()}
print(min(bin(t).count('1') for t in range(1024) if len({t & q for q in p}) == len(p)))
# Made By Mostafa_Khaled | python | code_algorithm | [
{
"input": "5\nB1 Y1 W1 G1 R1\n",
"output": "4\n"
},
{
"input": "4\nG4 R4 R3 B3\n",
"output": "2\n"
},
{
"input": "2\nG3 G3\n",
"output": "0\n"
},
{
"input": "35\nG2 Y1 Y1 R4 G5 B5 R2 G4 G2 G3 W4 W1 B3 W5 R2 Y5 R4 R4 B5 Y2 B4 B1 R3 G4 Y3 G2 R4 G3 B2 G2 R3 B2 R1 W2 B4\n",
"output": "8\n"
},
{
"input": "100\nG3 B3 G3 Y3 R3 G3 R3 G3 W3 B3 B3 B3 R3 Y3 Y3 W3 R3 B3 G3 W3 G3 W3 Y3 R3 Y3 W3 W3 G3 W3 G3 W3 Y3 G3 R3 Y3 W3 W3 Y3 Y3 Y3 R3 W3 R3 G3 W3 W3 G3 Y3 B3 W3 B3 Y3 G3 Y3 B3 Y3 W3 Y3 R3 Y3 R3 W3 W3 W3 G3 Y3 G3 R3 B3 R3 Y3 R3 Y3 R3 Y3 R3 Y3 R3 W3 Y3 R3 W3 W3 W3 G3 G3 Y3 B3 Y3 R3 G3 G3 B3 B3 Y3 R3 G3 R3 W3 G3\n",
"output": "4\n"
},
{
"input": "25\nR1 R3 G1 B5 Y5 W3 R4 R4 R1 G3 R2 W1 B1 G2 W2 G4 R2 W3 B1 W3 B5 Y5 R2 B4 B5\n",
"output": "7\n"
},
{
"input": "100\nB5 G3 Y2 W3 W1 G1 Y4 G3 G4 B5 W4 B5 Y3 R5 B4 G4 G4 B1 G1 R5 G4 B4 G1 G2 W1 Y4 R5 Y3 W5 W4 Y5 W1 B4 G3 R2 R3 W1 B4 Y4 G2 G2 R1 Y5 W1 Y3 B3 G5 Y3 G3 W2 W5 Y4 B2 Y5 R4 B2 Y3 W4 G2 G3 R2 W1 B4 B2 B1 Y2 Y2 Y3 W3 Y5 W1 R1 R1 R4 R4 R4 Y1 Y3 B2 Y3 Y1 R3 G4 G4 Y5 B5 W2 G1 G5 B3 G1 Y1 R2 G5 R2 Y5 R5 Y4 R4 W2\n",
"output": "8\n"
},
{
"input": "10\nW1 Y4 Y3 W3 Y2 W2 W1 Y2 Y3 W3\n",
"output": "3\n"
},
{
"input": "100\nY5 Y5 Y3 Y5 Y3 Y5 Y5 Y5 Y3 Y3 Y5 Y3 Y3 Y5 Y3 Y3 Y5 Y3 Y3 Y5 Y3 Y5 Y5 Y3 Y3 Y5 Y3 Y5 Y3 Y3 Y3 Y5 Y3 Y3 Y3 Y3 Y3 Y3 Y3 Y5 Y5 Y5 Y5 Y3 Y5 Y5 Y5 Y5 Y3 Y3 Y3 Y5 Y5 Y3 Y3 Y3 Y5 Y3 Y3 Y5 Y3 Y3 Y3 Y5 Y3 Y5 Y5 Y5 Y5 Y3 Y3 Y5 Y5 Y5 Y5 Y5 Y5 Y5 Y5 Y3 Y5 Y5 Y5 Y5 Y5 Y5 Y3 Y5 Y3 Y5 Y5 Y5 Y5 Y5 Y5 Y3 Y3 Y3 Y5 Y5\n",
"output": "1\n"
},
{
"input": "2\nW5 Y5\n",
"output": "1\n"
},
{
"input": "25\nY1 W2 G3 W1 G1 G3 G4 W1 B2 W3 R4 B1 G2 Y4 G1 R2 R3 Y4 B2 G4 W2 Y2 R2 Y5 R4\n",
"output": "7\n"
},
{
"input": "2\nW3 Y5\n",
"output": "1\n"
},
{
"input": "5\nG3 Y5 Y2 Y5 W3\n",
"output": "3\n"
},
{
"input": "100\nY3 Y3 Y5 Y2 Y4 Y1 Y2 Y3 Y1 Y5 Y3 Y1 Y4 Y5 Y5 Y3 Y1 Y5 Y2 Y3 Y1 Y4 Y4 Y1 Y2 Y2 Y4 Y2 Y4 Y5 Y5 Y2 Y3 Y1 Y3 Y5 Y3 Y1 Y5 Y3 Y3 Y2 Y5 Y1 Y5 Y5 Y4 Y2 Y2 Y1 Y2 Y4 Y3 Y2 Y5 Y3 Y4 Y3 Y1 Y4 Y2 Y4 Y4 Y3 Y3 Y1 Y1 Y4 Y2 Y5 Y3 Y4 Y4 Y4 Y3 Y2 Y2 Y2 Y3 Y4 Y4 Y2 Y1 Y2 Y2 Y4 Y3 Y5 Y4 Y2 Y5 Y3 Y1 Y5 Y2 Y5 Y4 Y1 Y2 Y1\n",
"output": "4\n"
},
{
"input": "3\nG4 G3 B4\n",
"output": "2\n"
},
{
"input": "5\nW5 W5 W3 Y3 Y5\n",
"output": "2\n"
},
{
"input": "35\nY3 Y3 Y3 Y3 Y3 Y3 W3 G3 G3 G3 W3 G3 G3 Y3 Y3 W3 G3 G3 Y3 W3 W3 Y3 Y3 G3 W3 W3 G3 Y3 Y3 W3 G3 W3 G3 W3 G3\n",
"output": "2\n"
},
{
"input": "35\nY5 Y5 W5 Y5 W3 Y3 W5 W3 W5 W3 W5 Y5 Y3 W3 W5 W5 W5 W3 Y5 Y3 Y5 W5 W5 Y3 Y5 Y5 Y3 W5 W3 W3 W3 W5 Y5 W3 W5\n",
"output": "2\n"
},
{
"input": "10\nW2 R2 B5 W5 W2 B3 B2 R5 Y5 R2\n",
"output": "5\n"
},
{
"input": "25\nW5 R1 Y3 G5 G3 G5 W2 Y1 R3 R4 B3 G5 G2 Y2 W1 G2 Y1 B4 Y2 G3 G3 Y4 W3 W5 Y2\n",
"output": "7\n"
},
{
"input": "25\nG4 R4 Y1 Y4 R3 B5 W2 G4 B5 B2 G1 B4 R4 G2 Y3 Y4 G5 Y3 R1 G2 Y5 G3 Y3 Y4 W3\n",
"output": "8\n"
},
{
"input": "5\nW5 Y3 W5 W5 Y5\n",
"output": "2\n"
},
{
"input": "25\nB3 Y1 R3 Y3 R5 B4 B3 G1 R1 B4 B5 W3 R4 W1 B3 Y3 B3 Y4 B2 G5 Y1 G5 R4 B5 Y1\n",
"output": "7\n"
},
{
"input": "100\nW4 Y1 W5 R4 W3 Y1 R4 W2 G3 G1 B5 Y5 Y2 Y3 G4 B5 W1 G5 Y5 Y3 G2 Y5 Y5 G5 R2 B3 B1 W5 Y1 W5 B4 W4 R4 B1 R1 W3 R5 R4 G2 W3 W3 R2 W5 Y2 B2 R3 R3 Y1 G5 G2 Y1 R4 Y5 W5 G5 B3 W2 R1 B2 W2 W2 Y5 W3 G1 B1 G2 Y3 W3 G1 W5 W1 G5 G2 Y1 W5 B5 W4 Y5 G2 R3 B4 R5 B1 R1 B4 Y4 Y4 Y3 R5 Y3 B3 W5 R5 Y5 G2 G5 W5 B4 G4 W5\n",
"output": "8\n"
},
{
"input": "5\nY3 Y3 G3 Y3 W3\n",
"output": "2\n"
},
{
"input": "35\nG3 G3 W3 W3 G3 G3 Y3 G3 Y3 Y3 G3 W3 Y3 G3 W3 Y3 W3 Y3 Y3 Y3 Y3 G3 G3 Y3 Y3 G3 G3 G3 G3 G3 Y3 W3 W3 W3 G3\n",
"output": "2\n"
},
{
"input": "5\nW3 B1 Y1 R3 Y5\n",
"output": "3\n"
},
{
"input": "10\nY4 B1 R3 G5 R5 W3 W5 W2 R1 Y1\n",
"output": "6\n"
},
{
"input": "35\nG3 G2 G5 G2 W2 G3 W2 W5 Y5 G5 W2 W2 W2 G5 Y2 G5 W5 W3 W2 Y2 G5 W5 W3 W5 Y2 Y5 W2 W2 W3 Y3 G2 W3 G5 G3 W2\n",
"output": "4\n"
},
{
"input": "5\nW5 G5 W2 Y5 G2\n",
"output": "3\n"
},
{
"input": "4\nG5 W5 W4 R3\n",
"output": "2\n"
},
{
"input": "5\nG4 W5 Y4 Y4 R5\n",
"output": "3\n"
},
{
"input": "35\nY2 Y3 Y2 Y3 Y5 Y5 Y3 Y5 Y5 Y2 Y2 Y5 Y2 Y2 Y5 Y3 Y2 Y5 Y5 Y3 Y3 Y2 Y2 Y2 Y3 Y5 Y2 Y5 Y5 Y3 Y5 Y2 Y3 Y3 Y2\n",
"output": "2\n"
},
{
"input": "35\nW2 W3 Y2 G5 G2 W3 G5 Y2 W5 Y5 W3 G2 G3 W5 W2 W3 Y2 Y5 Y2 Y5 Y2 Y2 G2 Y5 W3 Y5 G3 Y2 G3 Y2 Y5 W5 G3 W5 W5\n",
"output": "4\n"
},
{
"input": "35\nW3 Y3 W3 W5 Y5 W3 W3 Y5 W3 W3 W3 W5 W3 Y3 Y5 Y3 Y5 Y3 W3 W3 W5 W5 W3 Y5 W3 W3 Y3 W3 W5 W3 Y3 Y3 Y5 Y5 Y3\n",
"output": "2\n"
},
{
"input": "5\nW3 Y5 W2 G3 Y3\n",
"output": "3\n"
},
{
"input": "15\nY3 R4 G1 W1 R3 R2 W4 W1 R5 Y4 G3 R5 Y2 W1 Y1\n",
"output": "6\n"
},
{
"input": "35\nR2 R2 R2 R2 G3 G2 Y3 G2 R3 W5 G4 Y3 Y3 G2 Y5 W5 G4 G2 W4 Y2 W3 R5 W5 G4 G4 Y2 G2 Y5 G2 Y4 W3 G5 G2 R3 G4\n",
"output": "6\n"
},
{
"input": "35\nW4 Y5 Y3 Y3 R5 W3 R5 W2 R5 Y2 R2 Y2 G2 G3 Y4 Y4 R4 Y3 G2 W2 R2 R3 Y3 W5 W2 G4 R3 R3 W2 W5 Y4 R3 W2 R4 R2\n",
"output": "6\n"
},
{
"input": "4\nR1 R2 G1 B3\n",
"output": "2\n"
},
{
"input": "5\nW2 Y2 G3 G3 G3\n",
"output": "2\n"
},
{
"input": "5\nY3 Y2 Y3 Y5 Y5\n",
"output": "2\n"
},
{
"input": "4\nR1 R2 G1 Y5\n",
"output": "2\n"
},
{
"input": "5\nG3 R2 R5 B3 W4\n",
"output": "4\n"
},
{
"input": "5\nG5 G3 G5 G5 W2\n",
"output": "2\n"
},
{
"input": "35\nG5 G5 G3 G2 G3 Y3 W3 Y3 G5 W5 G2 G2 W5 G5 G5 W3 G3 G2 Y3 W5 W3 G5 W5 G2 Y2 Y3 W5 G3 W3 W2 G2 W3 Y2 G3 G3\n",
"output": "4\n"
},
{
"input": "25\nY3 R2 R2 Y2 Y5 Y4 B3 B3 Y4 W3 R1 W3 W5 B5 R1 Y4 B4 B5 B3 G3 B1 R2 R4 G5 Y5\n",
"output": "7\n"
},
{
"input": "5\nW2 G5 W3 R4 R4\n",
"output": "3\n"
},
{
"input": "5\nG3 Y3 G3 Y3 G3\n",
"output": "1\n"
},
{
"input": "100\nY3 Y3 Y3 W3 W3 Y3 Y3 W3 Y3 Y3 W3 Y3 Y3 Y3 W3 Y3 Y3 W3 Y3 Y3 Y3 W3 Y3 W3 W3 W3 W3 W3 Y3 Y3 W3 Y3 Y3 W3 W3 Y3 Y3 W3 Y3 Y3 W3 W3 W3 W3 W3 Y3 Y3 Y3 Y3 W3 Y3 Y3 W3 W3 W3 Y3 W3 W3 W3 Y3 Y3 Y3 Y3 W3 W3 W3 W3 W3 Y3 Y3 W3 Y3 W3 Y3 Y3 Y3 Y3 Y3 Y3 Y3 W3 W3 W3 W3 Y3 W3 Y3 Y3 Y3 Y3 Y3 Y3 Y3 Y3 W3 Y3 Y3 W3 W3 Y3\n",
"output": "1\n"
},
{
"input": "5\nY5 W3 W2 G5 W3\n",
"output": "3\n"
},
{
"input": "5\nW3 W5 Y3 W2 G5\n",
"output": "3\n"
},
{
"input": "5\nW5 W3 Y3 Y5 W2\n",
"output": "3\n"
},
{
"input": "100\nW5 Y5 Y3 W3 Y5 Y5 W5 W5 Y3 W5 Y5 Y3 W5 Y5 W5 W3 Y3 Y5 W3 W5 Y5 W3 Y5 Y3 W3 W3 Y3 Y5 W3 W3 Y3 Y5 W3 Y5 Y5 Y5 W5 Y5 W5 Y5 W5 W5 W3 W5 W3 Y3 W5 W3 W3 W5 Y3 Y5 W5 W5 W3 W5 W5 Y5 W5 W3 W3 W3 Y3 Y5 Y5 Y3 Y5 W5 W5 Y5 W3 W3 W5 Y5 Y5 Y3 W5 W5 W3 Y5 W3 W5 Y3 Y5 W5 Y3 Y3 W3 Y3 Y5 Y3 Y3 W5 Y5 Y3 Y5 Y3 W3 Y3 W5\n",
"output": "2\n"
}
] | code_contests | python | 0 | 972efc7a67f582cef3f13f245266eab7 |
Giga Tower is the tallest and deepest building in Cyberland. There are 17 777 777 777 floors, numbered from - 8 888 888 888 to 8 888 888 888. In particular, there is floor 0 between floor - 1 and floor 1. Every day, thousands of tourists come to this place to enjoy the wonderful view.
In Cyberland, it is believed that the number "8" is a lucky number (that's why Giga Tower has 8 888 888 888 floors above the ground), and, an integer is lucky, if and only if its decimal notation contains at least one digit "8". For example, 8, - 180, 808 are all lucky while 42, - 10 are not. In the Giga Tower, if you write code at a floor with lucky floor number, good luck will always be with you (Well, this round is #278, also lucky, huh?).
Tourist Henry goes to the tower to seek good luck. Now he is at the floor numbered a. He wants to find the minimum positive integer b, such that, if he walks b floors higher, he will arrive at a floor with a lucky number.
Input
The only line of input contains an integer a ( - 109 ≤ a ≤ 109).
Output
Print the minimum b in a line.
Examples
Input
179
Output
1
Input
-1
Output
9
Input
18
Output
10
Note
For the first sample, he has to arrive at the floor numbered 180.
For the second sample, he will arrive at 8.
Note that b should be positive, so the answer for the third sample is 10, not 0.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())+1
nword = str(n)
count = 1
while("8" not in nword):
n+=1
nword = str(n)
count += 1
print(count)
| python | code_algorithm | [
{
"input": "18\n",
"output": "10\n"
},
{
"input": "179\n",
"output": "1\n"
},
{
"input": "-1\n",
"output": "9\n"
},
{
"input": "-1000000000\n",
"output": "2\n"
},
{
"input": "-19\n",
"output": "1\n"
},
{
"input": "-8\n",
"output": "16\n"
},
{
"input": "-2\n",
"output": "10\n"
},
{
"input": "690422411\n",
"output": "7\n"
},
{
"input": "6\n",
"output": "2\n"
},
{
"input": "-408490162\n",
"output": "1\n"
},
{
"input": "-5\n",
"output": "13\n"
},
{
"input": "89\n",
"output": "9\n"
},
{
"input": "-410058385\n",
"output": "1\n"
},
{
"input": "-586825624\n",
"output": "1\n"
},
{
"input": "4\n",
"output": "4\n"
},
{
"input": "2\n",
"output": "6\n"
},
{
"input": "-4\n",
"output": "12\n"
},
{
"input": "0\n",
"output": "8\n"
},
{
"input": "1000000000\n",
"output": "8\n"
},
{
"input": "919067153\n",
"output": "5\n"
},
{
"input": "-6\n",
"output": "14\n"
},
{
"input": "-80000000\n",
"output": "2\n"
},
{
"input": "8\n",
"output": "10\n"
},
{
"input": "78\n",
"output": "2\n"
},
{
"input": "-7\n",
"output": "15\n"
},
{
"input": "-999999998\n",
"output": "9\n"
},
{
"input": "-17\n",
"output": "9\n"
},
{
"input": "88888\n",
"output": "1\n"
},
{
"input": "811111111\n",
"output": "1\n"
},
{
"input": "999999997\n",
"output": "1\n"
},
{
"input": "-999999997\n",
"output": "8\n"
},
{
"input": "-8888\n",
"output": "1\n"
},
{
"input": "852318890\n",
"output": "1\n"
}
] | code_contests | python | 0.9 | fb6d96e504e68a38a2491ded72add9aa |
Karafs is some kind of vegetable in shape of an 1 × h rectangle. Tavaspolis people love Karafs and they use Karafs in almost any kind of food. Tavas, himself, is crazy about Karafs.
<image>
Each Karafs has a positive integer height. Tavas has an infinite 1-based sequence of Karafses. The height of the i-th Karafs is si = A + (i - 1) × B.
For a given m, let's define an m-bite operation as decreasing the height of at most m distinct not eaten Karafses by 1. Karafs is considered as eaten when its height becomes zero.
Now SaDDas asks you n queries. In each query he gives you numbers l, t and m and you should find the largest number r such that l ≤ r and sequence sl, sl + 1, ..., sr can be eaten by performing m-bite no more than t times or print -1 if there is no such number r.
Input
The first line of input contains three integers A, B and n (1 ≤ A, B ≤ 106, 1 ≤ n ≤ 105).
Next n lines contain information about queries. i-th line contains integers l, t, m (1 ≤ l, t, m ≤ 106) for i-th query.
Output
For each query, print its answer in a single line.
Examples
Input
2 1 4
1 5 3
3 3 10
7 10 2
6 4 8
Output
4
-1
8
-1
Input
1 5 2
1 5 10
2 7 4
Output
1
2
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | #------------------------template--------------------------#
import os
import sys
from math import *
from collections import *
# from fractions import *
# from heapq import*
from bisect import *
from io import BytesIO, IOBase
def vsInput():
sys.stdin = open('input.txt', 'r')
sys.stdout = open('output.txt', 'w')
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")
ALPHA='abcdefghijklmnopqrstuvwxyz/'
M=998244353
EPS=1e-6
def Ceil(a,b): return a//b+int(a%b>0)
def value():return tuple(map(int,input().split()))
def array():return [int(i) for i in input().split()]
def Int():return int(input())
def Str():return input()
def arrayS():return [i for i in input().split()]
#-------------------------code---------------------------#
# vsInput()
def possible(r):
n=r-l+1
s=n*a+ n*(n-1)*B//2
# print(m,s,n,a)
return s<=m*t and a+B*(n-1)<=t
A,B,n=value()
for _ in range(n):
l,t,m=value()
a=A+(l-1)*B
low=l
high=10**10
ans=-1
while(low<=high):
mid=low+(high-low)//2
# print(low,mid,high)
if(possible(mid)):
ans=mid
low=mid+1
else:
high=mid-1
print(ans)
| python | code_algorithm | [
{
"input": "1 5 2\n1 5 10\n2 7 4\n",
"output": "1\n2\n"
},
{
"input": "2 1 4\n1 5 3\n3 3 10\n7 10 2\n6 4 8\n",
"output": "4\n-1\n8\n-1\n"
},
{
"input": "1 5000 1\n1 1000000 1000000\n",
"output": "200\n"
},
{
"input": "999999 1000000 1\n1 1000000 1000000\n",
"output": "1\n"
},
{
"input": "447 74474 4\n47 777474 747\n74 744744 74477\n477 477447 777\n7 477777 444444\n",
"output": "-1\n-1\n-1\n7\n"
},
{
"input": "1 1 4\n1 1000000 1000000\n1 1 1000000\n1 1000000 1\n1 1 1\n",
"output": "1000000\n1\n1413\n1\n"
},
{
"input": "1000000 1000000 1\n1000000 1000000 1000000\n",
"output": "-1\n"
},
{
"input": "1 1 1\n1 1000000 1000000\n",
"output": "1000000\n"
},
{
"input": "1 1000000 1\n1 1000000 1000000\n",
"output": "1\n"
}
] | code_contests | python | 0 | 120c9b7e35abe69616928f61424f9fe6 |
In the spirit of the holidays, Saitama has given Genos two grid paths of length n (a weird gift even by Saitama's standards). A grid path is an ordered sequence of neighbouring squares in an infinite grid. Two squares are neighbouring if they share a side.
One example of a grid path is (0, 0) → (0, 1) → (0, 2) → (1, 2) → (1, 1) → (0, 1) → ( - 1, 1). Note that squares in this sequence might be repeated, i.e. path has self intersections.
Movement within a grid path is restricted to adjacent squares within the sequence. That is, from the i-th square, one can only move to the (i - 1)-th or (i + 1)-th squares of this path. Note that there is only a single valid move from the first and last squares of a grid path. Also note, that even if there is some j-th square of the path that coincides with the i-th square, only moves to (i - 1)-th and (i + 1)-th squares are available. For example, from the second square in the above sequence, one can only move to either the first or third squares.
To ensure that movement is not ambiguous, the two grid paths will not have an alternating sequence of three squares. For example, a contiguous subsequence (0, 0) → (0, 1) → (0, 0) cannot occur in a valid grid path.
One marble is placed on the first square of each grid path. Genos wants to get both marbles to the last square of each grid path. However, there is a catch. Whenever he moves one marble, the other marble will copy its movement if possible. For instance, if one marble moves east, then the other marble will try and move east as well. By try, we mean if moving east is a valid move, then the marble will move east.
Moving north increases the second coordinate by 1, while moving south decreases it by 1. Similarly, moving east increases first coordinate by 1, while moving west decreases it.
Given these two valid grid paths, Genos wants to know if it is possible to move both marbles to the ends of their respective paths. That is, if it is possible to move the marbles such that both marbles rest on the last square of their respective paths.
Input
The first line of the input contains a single integer n (2 ≤ n ≤ 1 000 000) — the length of the paths.
The second line of the input contains a string consisting of n - 1 characters (each of which is either 'N', 'E', 'S', or 'W') — the first grid path. The characters can be thought of as the sequence of moves needed to traverse the grid path. For example, the example path in the problem statement can be expressed by the string "NNESWW".
The third line of the input contains a string of n - 1 characters (each of which is either 'N', 'E', 'S', or 'W') — the second grid path.
Output
Print "YES" (without quotes) if it is possible for both marbles to be at the end position at the same time. Print "NO" (without quotes) otherwise. In both cases, the answer is case-insensitive.
Examples
Input
7
NNESWW
SWSWSW
Output
YES
Input
3
NN
SS
Output
NO
Note
In the first sample, the first grid path is the one described in the statement. Moreover, the following sequence of moves will get both marbles to the end: NNESWWSWSW.
In the second sample, no sequence of moves can get both marbles to the end.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def prefix(s):
v = [0]*len(s)
for i in range(1,len(s)):
k = v[i-1]
while k > 0 and s[k] != s[i]:
k = v[k-1]
if s[k] == s[i]:
k = k + 1
v[i] = k
return v
n = int(input())
n-=1
s1 = input()
s2 = input()
opos = {'W':'E', 'E':'W', 'N':'S', 'S':'N'}
s3 = ''
for elem in s2:
s3 += opos[elem]
s3 = s3[::-1]
s = s3 + '$' + s1
a = prefix(s)[2 * n]
if a == 0: print('YES')
else: print('NO')
| python | code_algorithm | [
{
"input": "3\nNN\nSS\n",
"output": "NO\n"
},
{
"input": "7\nNNESWW\nSWSWSW\n",
"output": "YES\n"
},
{
"input": "200\nNESENEESEESWWWNWWSWSWNWNNWNNESWSWNNWNWNENESENNESSWSESWWSSSEEEESSENNNESSWWSSSSESWSWWNNEESSWWNNWSWSSWWNWNNEENNENWWNESSSENWNESWNESWNESEESSWNESSSSSESESSWNNENENESSWWNNWWSWWNESEENWWWWNWWNWWNENESESSWWSWWSES\nNWNESESSENNNESWNWWSWWWNWSESSSWWNWWNNWSENWSWNENNNWWSWWSWNNNESWWWSSESSWWWSSENWSENWWNENESESWNENNESWNWNNENNWWWSENWSWSSSENNWWNEESENNESEESSEESWWWWWWNWNNNESESWSSEEEESWNENWSESEEENWNNWWNWNNNNWWSSWNEENENEEEEEE\n",
"output": "YES\n"
},
{
"input": "12\nWNNWSWWSSSE\nNESWNNNWSSS\n",
"output": "YES\n"
},
{
"input": "2\nW\nS\n",
"output": "YES\n"
},
{
"input": "3\nES\nNW\n",
"output": "NO\n"
},
{
"input": "5\nWSSE\nWNNE\n",
"output": "NO\n"
},
{
"input": "2\nS\nN\n",
"output": "NO\n"
},
{
"input": "100\nWNWWSWWSESWWWSSSSWSSEENWNWWWWNNENESWSESSENEENNWWWWWSSWSWSENESWNEENESWWNNEESESWSEEENWWNWNNWWNNWWWWSW\nEESEESSENWNWWWNWWNWWNWWSWNNWNWNWSWNNEENWSWNNESWSWNWSESENWSWSWWWWNNEESSSWSSESWWSSWSSWSWNEEESWWSSSSEN\n",
"output": "NO\n"
},
{
"input": "11\nWWNNNNWNWN\nENWSWWSSEE\n",
"output": "YES\n"
},
{
"input": "2\nE\nE\n",
"output": "YES\n"
}
] | code_contests | python | 0 | 21deffc5f5fd580a54515d8931b0b684 |
<image>
You can preview the image in better quality by the link: [http://assets.codeforces.com/files/656/without-text.png](//assets.codeforces.com/files/656/without-text.png)
Input
The only line of the input is a string (between 1 and 50 characters long, inclusive). Each character will be an alphanumeric character or a full stop ".".
Output
Output the required answer.
Examples
Input
Codeforces
Output
-87
Input
APRIL.1st
Output
17
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | s = input()
alpha = "abcdefghijklmnopqrstuvwxyz.0123456789"
res = 0
for c in s:
x1 = int('@' < c and '[' > c)
x2 = alpha.index(c.lower()) + 1
x3 = int('`' < c and '{' > c)
x4 = x1 * x2
x5 = x2 * x3
x6 = x4 - x5
res += x6
print(res)
| python | code_algorithm | [
{
"input": "APRIL.1st\n",
"output": "17\n"
},
{
"input": "Codeforces\n",
"output": "-87\n"
},
{
"input": "K3n5JwuWoJdFUVq8H5QldFqDD2B9yCUDFY1TTMN10\n",
"output": "118\n"
},
{
"input": "F646Pj3RlX5iZ9ei8oCh.IDjGCcvPQofAPCpNRwkBa6uido8w\n",
"output": "-44\n"
},
{
"input": "uVVcZsrSe\n",
"output": "23\n"
},
{
"input": "rXoypUjrOofxvzuSUrNfhxn490ZBwQZ0mMHYFlY4DCNQW\n",
"output": "-11\n"
},
{
"input": "F7\n",
"output": "6\n"
},
{
"input": "B9O9WWF\n",
"output": "69\n"
},
{
"input": "oZndfd2PbCT85u6081\n",
"output": "-1\n"
},
{
"input": "A\n",
"output": "1\n"
},
{
"input": "D5LkqCdKJsy\n",
"output": "-36\n"
},
{
"input": "XugVHXi3RqJWXaP9i6g.0fP\n",
"output": "108\n"
},
{
"input": ".5i7kqPokKqEsLMn8ib\n",
"output": "-67\n"
},
{
"input": "sVmF.LOJCNrkn2iupiiou\n",
"output": "-93\n"
},
{
"input": "kKKKKKkkkkkKKKKKkkkKKKKKkkkkkkkkkkkKKKKKkkkkkKKKKK\n",
"output": "0\n"
},
{
"input": "E94HphU3y4z6Q3nMYz8YYuvvtR\n",
"output": "-43\n"
},
{
"input": "CODEcode\n",
"output": "0\n"
},
{
"input": "I9WJ8Z4neyQpjakuk6bIJyzbWVnT\n",
"output": "-14\n"
},
{
"input": "H8nxY2bfCKIrUMANJT2V1v7JPOnoQGMuk7SZp.oS\n",
"output": "121\n"
},
{
"input": "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz\n",
"output": "-1300\n"
},
{
"input": "FApeOAvCPk64\n",
"output": "-12\n"
},
{
"input": "vTUvjiXvQbCUrJ5tbAblMtPZ6r8RVFFXrV6CL\n",
"output": "88\n"
},
{
"input": "G45OZakwa5JVOES9UdXq9Edpj\n",
"output": "82\n"
},
{
"input": "L5VbIQ\n",
"output": "58\n"
},
{
"input": ".0.1.2.\n",
"output": "0\n"
},
{
"input": "M1TEc65C1h\n",
"output": "30\n"
},
{
"input": "G7pT.FXaC9ChoODEaRkTGL41NIcXmG9FiiS\n",
"output": "137\n"
},
{
"input": "DB6zepob9WnHY0zvC8nPOzVpSYDZsTgLfzdvj4L8DrRPCdHS\n",
"output": "6\n"
},
{
"input": "L3TuSHPiE7oQPhOnQlHZhsknMEO5.2.R\n",
"output": "99\n"
},
{
"input": "rXVKP0A.qQnv9ATzvUxSz.eMD6ZoIIvb\n",
"output": "0\n"
},
{
"input": "Bgh\n",
"output": "-13\n"
},
{
"input": "J5pm96D11kPTf\n",
"output": "4\n"
},
{
"input": "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ\n",
"output": "1300\n"
},
{
"input": "C7NRgNxtXJlwSuEhNJHkWH0LmEpUwcKbs\n",
"output": "17\n"
},
{
"input": "D86oFsPzzwtuj5oEoxrYo\n",
"output": "-191\n"
},
{
"input": "LHg25JHfDf74yUj2rezrsTGBzsVZKyFMikyesiW\n",
"output": "-95\n"
},
{
"input": "O\n",
"output": "15\n"
},
{
"input": "K1mOToYzavp3Kaeacv\n",
"output": "-43\n"
},
{
"input": "I6lEiuI6zuUfJQ0peI\n",
"output": "-36\n"
}
] | code_contests | python | 0 | ea5962a9630636afe6e7bd9ff5f5916b |
You are given n points on the straight line — the positions (x-coordinates) of the cities and m points on the same line — the positions (x-coordinates) of the cellular towers. All towers work in the same way — they provide cellular network for all cities, which are located at the distance which is no more than r from this tower.
Your task is to find minimal r that each city has been provided by cellular network, i.e. for each city there is at least one cellular tower at the distance which is no more than r.
If r = 0 then a tower provides cellular network only for the point where it is located. One tower can provide cellular network for any number of cities, but all these cities must be at the distance which is no more than r from this tower.
Input
The first line contains two positive integers n and m (1 ≤ n, m ≤ 105) — the number of cities and the number of cellular towers.
The second line contains a sequence of n integers a1, a2, ..., an ( - 109 ≤ ai ≤ 109) — the coordinates of cities. It is allowed that there are any number of cities in the same point. All coordinates ai are given in non-decreasing order.
The third line contains a sequence of m integers b1, b2, ..., bm ( - 109 ≤ bj ≤ 109) — the coordinates of cellular towers. It is allowed that there are any number of towers in the same point. All coordinates bj are given in non-decreasing order.
Output
Print minimal r so that each city will be covered by cellular network.
Examples
Input
3 2
-2 2 4
-3 0
Output
4
Input
5 3
1 5 10 14 17
4 11 15
Output
3
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import bisect
import sys
EPS = sys.float_info.epsilon
LENGTH = 10
matrix = [[] for i in range(LENGTH)]
array = [0] * LENGTH
if __name__ == "__main__":
n, m = map(int, sys.stdin.readline().split())
a = list(map(int, sys.stdin.readline().split()))
b = list(map(int, sys.stdin.readline().split()))
answer = 0
for val in a:
index_l = bisect.bisect_left(b, val)
index_r = bisect.bisect_left(b, val)
ans1 = 10000000000000
ans2 = 10000000000000
if index_l > 0:
ans1 = abs(val - b[index_l - 1])
if index_l <= len(b) - 1:
ans2 = abs(b[index_l] - val)
answer1 = min(ans1, ans2)
ans1 = 10000000000000
ans2 = 10000000000000
if index_r > 0:
ans1 = abs(val - b[index_r - 1])
if index_r <= len(b) - 1:
ans2 = abs(b[index_r] - val)
answer2 = min(ans1, ans2)
answer = max(answer, min(answer1, answer2))
print(answer)
| python | code_algorithm | [
{
"input": "3 2\n-2 2 4\n-3 0\n",
"output": "4\n"
},
{
"input": "5 3\n1 5 10 14 17\n4 11 15\n",
"output": "3\n"
},
{
"input": "10 10\n2 52 280 401 416 499 721 791 841 943\n246 348 447 486 507 566 568 633 953 986\n",
"output": "244\n"
},
{
"input": "2 1\n4 8\n-1\n",
"output": "9\n"
},
{
"input": "1 21\n3\n3 10 23 32 34 40 42 49 49 50 50 58 70 71 71 74 76 79 79 80 83\n",
"output": "0\n"
},
{
"input": "1 1\n1000000000\n-1000000000\n",
"output": "2000000000\n"
},
{
"input": "4 1\n-6 -3 -1 2\n-7\n",
"output": "9\n"
},
{
"input": "1 2\n2\n4 7\n",
"output": "2\n"
},
{
"input": "1 3\n0\n-4 0 5\n",
"output": "0\n"
},
{
"input": "2 3\n-2 7\n-7 -2 5\n",
"output": "2\n"
},
{
"input": "10 10\n1 1 2 2 2 4 4 6 7 9\n0 1 3 3 3 6 7 8 9 10\n",
"output": "1\n"
},
{
"input": "2 2\n-5 2\n-7 4\n",
"output": "2\n"
},
{
"input": "1 3\n-4\n-8 -1 1\n",
"output": "3\n"
},
{
"input": "1 2\n6\n-8 -8\n",
"output": "14\n"
},
{
"input": "7 7\n1 2 3 3 4 5 6\n1 1 2 3 4 5 6\n",
"output": "0\n"
},
{
"input": "1 2\n8\n-7 5\n",
"output": "3\n"
},
{
"input": "1 4\n4\n-8 0 1 7\n",
"output": "3\n"
},
{
"input": "1 1\n-1\n0\n",
"output": "1\n"
},
{
"input": "1 1\n-1000000000\n1000000000\n",
"output": "2000000000\n"
},
{
"input": "1 3\n-3\n-1 -1 8\n",
"output": "2\n"
}
] | code_contests | python | 0.1 | 1691b5d985b071cdacae8313becbe8c4 |
Innokentiy likes tea very much and today he wants to drink exactly n cups of tea. He would be happy to drink more but he had exactly n tea bags, a of them are green and b are black.
Innokentiy doesn't like to drink the same tea (green or black) more than k times in a row. Your task is to determine the order of brewing tea bags so that Innokentiy will be able to drink n cups of tea, without drinking the same tea more than k times in a row, or to inform that it is impossible. Each tea bag has to be used exactly once.
Input
The first line contains four integers n, k, a and b (1 ≤ k ≤ n ≤ 105, 0 ≤ a, b ≤ n) — the number of cups of tea Innokentiy wants to drink, the maximum number of cups of same tea he can drink in a row, the number of tea bags of green and black tea. It is guaranteed that a + b = n.
Output
If it is impossible to drink n cups of tea, print "NO" (without quotes).
Otherwise, print the string of the length n, which consists of characters 'G' and 'B'. If some character equals 'G', then the corresponding cup of tea should be green. If some character equals 'B', then the corresponding cup of tea should be black.
If there are multiple answers, print any of them.
Examples
Input
5 1 3 2
Output
GBGBG
Input
7 2 2 5
Output
BBGBGBB
Input
4 3 4 0
Output
NO
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,k,a,b = [int(i) for i in input().split()]
check = False
if (a>b):
a,b = b,a
check = True
res = ""
cr = 1
cA = True
while (a > 0 or b > 0):
if (a==b):
break
#print(a,b)
if (cr==1):
if a <= b:
u = min(k, b - a)
b -= u
res += u * '1'
else:
if (b==0):
cA = False
break
else:
b -= 1
res += '1'
cr = 0
else:
if a >= b:
u = min(k, a - b)
a -= u
res += u * '0'
else:
if (a==0):
cA = False
break
else:
a -= 1
res += '0'
cr = 1
if (a==b):
if (len(res)>0):
if (res[len(res)-1] =='0'):
res += '10' * a
else:
res += '01' * a
else:
res += '01' * a
if (b==0 and a > k):
cA = False
if (a==0 and b > k):
cA = False
if cA == False:
print("NO")
else:
if (check):
for i in res:
if i == '1':
print('G', end ='')
else:
print('B', end ='')
else:
for i in res:
if i == '1':
print('B', end ='')
else:
print('G', end ='')
| python | code_algorithm | [
{
"input": "5 1 3 2\n",
"output": "GBGBG"
},
{
"input": "7 2 2 5\n",
"output": "BBGBBGB"
},
{
"input": "4 3 4 0\n",
"output": "NO\n"
},
{
"input": "99999 3580 66665 33334\n",
"output": 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},
{
"input": "2 2 0 2\n",
"output": "BB"
},
{
"input": "10 1 2 8\n",
"output": "NO\n"
},
{
"input": "11 1 2 9\n",
"output": "NO\n"
},
{
"input": "11 2 5 6\n",
"output": "BGBGBGBGBGB"
},
{
"input": "7 3 2 5\n",
"output": "BBBGBGB"
},
{
"input": "11 1 9 2\n",
"output": "NO\n"
},
{
"input": "59999 16660 46835 13164\n",
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{
"input": "99999 10760 33333 66666\n",
"output": 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"input": "10001 1841 1052 8949\n",
"output": "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBGBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBGBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB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GB"
}
] | code_contests | python | 0 | a157ccb403f288b1f59e69aaf1d86219 |
Vasya has the sequence consisting of n integers. Vasya consider the pair of integers x and y k-interesting, if their binary representation differs from each other exactly in k bits. For example, if k = 2, the pair of integers x = 5 and y = 3 is k-interesting, because their binary representation x=101 and y=011 differs exactly in two bits.
Vasya wants to know how many pairs of indexes (i, j) are in his sequence so that i < j and the pair of integers ai and aj is k-interesting. Your task is to help Vasya and determine this number.
Input
The first line contains two integers n and k (2 ≤ n ≤ 105, 0 ≤ k ≤ 14) — the number of integers in Vasya's sequence and the number of bits in which integers in k-interesting pair should differ.
The second line contains the sequence a1, a2, ..., an (0 ≤ ai ≤ 104), which Vasya has.
Output
Print the number of pairs (i, j) so that i < j and the pair of integers ai and aj is k-interesting.
Examples
Input
4 1
0 3 2 1
Output
4
Input
6 0
200 100 100 100 200 200
Output
6
Note
In the first test there are 4 k-interesting pairs:
* (1, 3),
* (1, 4),
* (2, 3),
* (2, 4).
In the second test k = 0. Consequently, integers in any k-interesting pair should be equal to themselves. Thus, for the second test there are 6 k-interesting pairs:
* (1, 5),
* (1, 6),
* (2, 3),
* (2, 4),
* (3, 4),
* (5, 6).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import defaultdict
n, k = [int(i) for i in input().split()]
A = [int(i) for i in input().split()]
A_dict = defaultdict(int)
for i in A:
A_dict[i] += 1
def bitCount(x):
cur = 0
while x > 0:
if x % 2:
cur += 1
x //= 2
return cur
mask = []
for i in range(2**15):
if bitCount(i) == k:
mask.append(i)
ans = 0
for i in A_dict:
for j in mask:
if i^j in A_dict:
if i^j == i:
ans += A_dict[i] * (A_dict[i]-1)
else:
ans += A_dict[i] * A_dict[i^j]
print(ans//2)
| python | code_algorithm | [
{
"input": "6 0\n200 100 100 100 200 200\n",
"output": "6\n"
},
{
"input": "4 1\n0 3 2 1\n",
"output": "4\n"
},
{
"input": "2 1\n0 1\n",
"output": "1\n"
},
{
"input": "2 0\n1 1\n",
"output": "1\n"
},
{
"input": "3 2\n0 3 3\n",
"output": "2\n"
},
{
"input": "2 0\n10000 10000\n",
"output": "1\n"
},
{
"input": "10 0\n1 1 1 1 1 1 1 1 1 1\n",
"output": "45\n"
},
{
"input": "3 2\n3 3 3\n",
"output": "0\n"
},
{
"input": "3 1\n0 1 2\n",
"output": "2\n"
},
{
"input": "2 1\n0 2\n",
"output": "1\n"
},
{
"input": "2 0\n0 10000\n",
"output": "0\n"
},
{
"input": "2 0\n0 0\n",
"output": "1\n"
},
{
"input": "100 14\n8192 8192 8192 8192 8191 8192 8192 8192 8192 8192 8191 8191 8191 8192 8191 8191 8191 8192 8192 8192 8192 8192 8191 8191 8191 8192 8191 8192 8192 8192 8192 8192 8192 8191 8191 8192 8192 8191 8191 8192 8192 8192 8191 8191 8192 8191 8191 8191 8191 8191 8191 8192 8191 8191 8192 8191 8191 8192 8192 8191 8192 8192 8192 8192 8192 8192 8192 8191 8192 8192 8192 8191 8191 8192 8192 8192 8191 8192 8192 8192 8192 8192 8191 8192 8192 8191 8192 8192 8192 8192 8191 8192 8191 8191 8192 8191 8192 8192 8191 8191\n",
"output": "2400\n"
}
] | code_contests | python | 0.5 | 37973198e1286cc4a05223081702826f |
Bankopolis is an incredible city in which all the n crossroads are located on a straight line and numbered from 1 to n along it. On each crossroad there is a bank office.
The crossroads are connected with m oriented bicycle lanes (the i-th lane goes from crossroad ui to crossroad vi), the difficulty of each of the lanes is known.
Oleg the bank client wants to gift happiness and joy to the bank employees. He wants to visit exactly k offices, in each of them he wants to gift presents to the employees.
The problem is that Oleg don't want to see the reaction on his gifts, so he can't use a bicycle lane which passes near the office in which he has already presented his gifts (formally, the i-th lane passes near the office on the x-th crossroad if and only if min(ui, vi) < x < max(ui, vi))). Of course, in each of the offices Oleg can present gifts exactly once. Oleg is going to use exactly k - 1 bicycle lane to move between offices. Oleg can start his path from any office and finish it in any office.
Oleg wants to choose such a path among possible ones that the total difficulty of the lanes he will use is minimum possible. Find this minimum possible total difficulty.
Input
The first line contains two integers n and k (1 ≤ n, k ≤ 80) — the number of crossroads (and offices) and the number of offices Oleg wants to visit.
The second line contains single integer m (0 ≤ m ≤ 2000) — the number of bicycle lanes in Bankopolis.
The next m lines contain information about the lanes.
The i-th of these lines contains three integers ui, vi and ci (1 ≤ ui, vi ≤ n, 1 ≤ ci ≤ 1000), denoting the crossroads connected by the i-th road and its difficulty.
Output
In the only line print the minimum possible total difficulty of the lanes in a valid path, or -1 if there are no valid paths.
Examples
Input
7 4
4
1 6 2
6 2 2
2 4 2
2 7 1
Output
6
Input
4 3
4
2 1 2
1 3 2
3 4 2
4 1 1
Output
3
Note
In the first example Oleg visiting banks by path 1 → 6 → 2 → 4.
Path 1 → 6 → 2 → 7 with smaller difficulity is incorrect because crossroad 2 → 7 passes near already visited office on the crossroad 6.
In the second example Oleg can visit banks by path 4 → 1 → 3.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import sys
from functools import lru_cache
input = sys.stdin.readline
# sys.setrecursionlimit(2 * 10**6)
def inpl():
return list(map(int, input().split()))
@lru_cache(maxsize=None)
def recur(v, s, e, k):
"""
vから初めて[s, e]の都市をk個まわる最小値は？
"""
if k == 0:
return 0
elif k > e - s + 1:
return INF
ret = INF
# print(v, k)
for nv in edge[v]:
if not(s <= nv <= e):
continue
tmp = [0] * 2
if v < nv:
tmp[0] = recur(nv, max(s, v + 1), nv - 1, k - 1)
tmp[1] = recur(nv, nv + 1, e, k - 1)
else:
tmp[0] = recur(nv, s, nv - 1, k - 1)
tmp[1] = recur(nv, nv + 1, min(v - 1, e), k - 1)
# print(v, nv, tmp)
if min(tmp) + cost[(v, nv)] < ret:
ret = min(tmp) + cost[(v, nv)]
return ret
def main():
M = int(input())
U, V, C = [], [], []
for _ in range(M):
u, v, c = inpl()
U.append(u)
V.append(v)
C.append(c)
for u, v, c in zip(U, V, C):
if (u, v) in cost:
cost[(u, v)] = min(cost[(u, v)], c)
else:
edge[u].append(v)
cost[(u, v)] = c
# print(cost)
ans = INF
for v in range(N + 1):
for nv in edge[v]:
tmp = [float('inf')] * 2
if v < nv:
tmp[0] = recur(nv, nv + 1, N, K - 2)
tmp[1] = recur(nv, v + 1, nv - 1, K - 2)
else:
tmp[0] = recur(nv, 1, nv - 1, K - 2)
tmp[1] = recur(nv, nv + 1, v - 1, K - 2)
if min(tmp) + cost[(v, nv)] < ans:
ans = min(tmp) + cost[(v, nv)]
if ans == INF:
print(-1)
else:
print(ans)
if __name__ == '__main__':
INF = float('inf')
N, K = inpl()
if K < 2:
print(0)
exit()
edge = [[] for _ in range(N + 1)]
cost = {}
main()
| python | code_algorithm | [
{
"input": "7 4\n4\n1 6 2\n6 2 2\n2 4 2\n2 7 1\n",
"output": "6\n"
},
{
"input": "4 3\n4\n2 1 2\n1 3 2\n3 4 2\n4 1 1\n",
"output": "3\n"
},
{
"input": "5 5\n10\n2 4 420\n4 5 974\n5 1 910\n1 3 726\n1 2 471\n5 2 94\n3 2 307\n2 5 982\n5 4 848\n3 5 404\n",
"output": "-1\n"
},
{
"input": "5 4\n4\n5 4 614\n4 1 177\n1 3 66\n5 2 43\n",
"output": "857\n"
},
{
"input": "3 2\n10\n2 3 290\n3 1 859\n3 1 852\n1 2 232\n1 2 358\n2 1 123\n1 3 909\n2 1 296\n1 3 119\n1 2 584\n",
"output": "119\n"
},
{
"input": "1 1\n0\n",
"output": "0\n"
},
{
"input": "5 5\n20\n2 5 174\n4 3 496\n5 2 103\n2 1 345\n2 4 942\n3 5 131\n3 2 451\n5 2 299\n2 4 285\n4 5 241\n4 5 706\n2 1 639\n1 5 94\n1 2 844\n3 4 194\n2 4 812\n2 5 566\n3 5 293\n3 4 356\n2 5 717\n",
"output": "978\n"
},
{
"input": "10 7\n50\n4 7 655\n7 3 220\n3 5 15\n5 10 811\n10 1 490\n1 2 800\n7 10 200\n1 5 377\n1 4 656\n6 4 432\n3 7 563\n1 8 122\n2 9 777\n3 2 157\n5 8 912\n9 8 496\n9 2 740\n3 2 201\n6 7 653\n1 7 554\n6 9 660\n3 2 622\n6 10 227\n9 1 42\n2 6 346\n2 7 944\n3 10 654\n5 2 501\n1 6 786\n3 8 306\n6 1 998\n6 2 581\n10 1 843\n10 9 993\n10 9 93\n2 9 770\n1 5 89\n1 7 761\n6 1 387\n7 1 24\n5 9 922\n1 8 480\n9 7 814\n4 3 682\n9 3 73\n9 6 436\n4 1 685\n10 8 46\n8 2 725\n4 1 892\n",
"output": "1760\n"
},
{
"input": "10 4\n10\n1 4 662\n4 7 555\n7 9 172\n1 8 481\n8 10 609\n1 2 705\n1 10 225\n8 2 939\n2 10 329\n6 10 477\n",
"output": "1389\n"
},
{
"input": "3 2\n4\n2 3 716\n3 2 239\n3 2 646\n3 2 39\n",
"output": "39\n"
},
{
"input": "6 4\n10\n2 5 609\n5 6 805\n6 4 814\n5 6 322\n4 3 689\n4 6 30\n2 1 949\n2 1 650\n2 4 217\n4 2 362\n",
"output": "1826\n"
},
{
"input": "3 3\n4\n1 2 545\n1 3 716\n3 1 3\n2 3 338\n",
"output": "548\n"
},
{
"input": "5 3\n20\n5 2 515\n4 1 865\n3 4 570\n1 5 371\n3 1 420\n5 2 464\n4 3 130\n4 1 381\n1 2 702\n5 1 97\n5 2 402\n5 2 314\n1 4 272\n3 1 505\n5 4 662\n2 3 893\n1 3 20\n4 2 601\n1 3 4\n4 2 474\n",
"output": "101\n"
}
] | code_contests | python | 0 | 9f26bd6070ab9b9b8a68b01180cbf2f2 |
Valery is very interested in magic. Magic attracts him so much that he sees it everywhere. He explains any strange and weird phenomenon through intervention of supernatural forces. But who would have thought that even in a regular array of numbers Valera manages to see something beautiful and magical.
Valera absolutely accidentally got a piece of ancient parchment on which an array of numbers was written. He immediately thought that the numbers in this array were not random. As a result of extensive research Valera worked out a wonderful property that a magical array should have: an array is defined as magic if its minimum and maximum coincide.
He decided to share this outstanding discovery with you, but he asks you for help in return. Despite the tremendous intelligence and wit, Valera counts very badly and so you will have to complete his work. All you have to do is count the number of magical subarrays of the original array of numbers, written on the parchment. Subarray is defined as non-empty sequence of consecutive elements.
Input
The first line of the input data contains an integer n (1 ≤ n ≤ 105). The second line contains an array of original integers a1, a2, ..., an ( - 109 ≤ ai ≤ 109).
Output
Print on the single line the answer to the problem: the amount of subarrays, which are magical.
Please do not use the %lld specificator to read or write 64-bit numbers in C++. It is recommended to use cin, cout streams (you can also use the %I64d specificator).
Examples
Input
4
2 1 1 4
Output
5
Input
5
-2 -2 -2 0 1
Output
8
Note
Notes to sample tests:
Magical subarrays are shown with pairs of indices [a;b] of the beginning and the end.
In the first sample: [1;1], [2;2], [3;3], [4;4], [2;3].
In the second sample: [1;1], [2;2], [3;3], [4;4], [5;5], [1;2], [2;3], [1;3].
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import defaultdict
n = int(input())
arr = list(map(int,input().split()))
cur = arr[0]
cnt = 1
d = defaultdict(int)
for i in range(1,n):
if arr[i]==cur:
cnt+=1
else:
d[cnt]+=1
cur = arr[i]
cnt = 1
if cnt!=0:
d[cnt]+=1
ans = 0
for i in d:
freq = d[i]
cnt = (i*(i+1))//2
cnt = cnt*freq
ans+=cnt
print(ans) | python | code_algorithm | [
{
"input": "5\n-2 -2 -2 0 1\n",
"output": "8\n"
},
{
"input": "4\n2 1 1 4\n",
"output": "5\n"
},
{
"input": "1\n10\n",
"output": "1\n"
},
{
"input": "100\n0 -18 -9 -15 3 16 -28 0 -28 0 28 -20 -9 9 -11 0 18 -15 -18 -26 0 -27 -25 -22 6 -5 8 14 -17 24 20 3 -6 24 -27 1 -23 0 4 12 -20 0 -10 30 22 -6 13 16 0 15 17 -8 -2 0 -5 13 11 23 -17 -29 10 15 -28 0 -23 4 20 17 -7 -5 -16 -17 16 2 20 19 -8 0 8 -5 12 0 0 -14 -15 -28 -10 20 0 8 -1 10 14 9 0 4 -16 15 13 -10\n",
"output": "101\n"
},
{
"input": "50\n2 0 2 0 0 0 0 -1 -2 -2 -2 1 1 2 2 0 2 0 2 -3 0 0 0 0 3 1 -2 0 -1 0 -2 3 -1 2 0 2 0 0 0 0 2 0 1 0 0 3 0 0 -2 0\n",
"output": "75\n"
},
{
"input": "20\n6 0 0 -3 1 -3 0 -8 1 3 5 2 -1 -5 -1 9 0 6 -2 4\n",
"output": "21\n"
},
{
"input": "12\n-4 3 3 2 3 3 3 -4 2 -4 -4 -4\n",
"output": "19\n"
},
{
"input": "10\n7 1 0 10 0 -5 -3 -2 0 0\n",
"output": "11\n"
},
{
"input": "2\n-510468670 0\n",
"output": "2\n"
},
{
"input": "2\n5 6\n",
"output": "2\n"
},
{
"input": "150\n0 -2 1 -2 0 0 0 0 -2 0 -2 -1 0 0 2 0 1 -2 1 -1 0 0 0 2 -2 2 -1 0 0 0 -2 0 2 0 1 0 -2 0 -2 -1 -1 -2 -2 2 0 0 1 -2 -2 -1 -2 0 2 1 1 -1 1 0 -2 2 0 0 0 1 -1 0 -2 -1 0 -2 2 1 1 0 0 2 0 0 2 -1 0 0 2 0 2 0 -2 -1 1 -2 1 0 0 -2 -1 -1 0 0 2 -1 -1 -1 -1 -2 0 0 2 -1 -1 1 0 0 1 -1 0 0 -1 2 2 0 0 0 -1 -2 0 1 0 -1 0 -1 -1 0 2 0 1 2 0 0 2 0 0 1 2 0 2 -2 2 0 2 2\n",
"output": "196\n"
},
{
"input": "8\n1 2 0 0 0 0 3 3\n",
"output": "15\n"
},
{
"input": "5\n5 5 4 5 5\n",
"output": "7\n"
}
] | code_contests | python | 0.5 | a20eda1216c79ff3280f2a05e1d890c7 |
Vlad likes to eat in cafes very much. During his life, he has visited cafes n times. Unfortunately, Vlad started to feel that his last visits are not any different from each other. To fix that Vlad had a small research.
First of all, Vlad assigned individual indices to all cafes. Then, he wrote down indices of cafes he visited in a row, in order of visiting them. Now, Vlad wants to find such a cafe that his last visit to that cafe was before his last visits to every other cafe. In other words, he wants to find such a cafe that he hasn't been there for as long as possible. Help Vlad to find that cafe.
Input
In first line there is one integer n (1 ≤ n ≤ 2·105) — number of cafes indices written by Vlad.
In second line, n numbers a1, a2, ..., an (0 ≤ ai ≤ 2·105) are written — indices of cafes in order of being visited by Vlad. Vlad could visit some cafes more than once. Note that in numeration, some indices could be omitted.
Output
Print one integer — index of the cafe that Vlad hasn't visited for as long as possible.
Examples
Input
5
1 3 2 1 2
Output
3
Input
6
2 1 2 2 4 1
Output
2
Note
In first test, there are three cafes, and the last visits to cafes with indices 1 and 2 were after the last visit to cafe with index 3; so this cafe is the answer.
In second test case, there are also three cafes, but with indices 1, 2 and 4. Cafes with indices 1 and 4 were visited after the last visit of cafe with index 2, so the answer is 2. Note that Vlad could omit some numbers while numerating the cafes.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from sys import stdin as fin
# fin = open("tc173b.in", "r")
n = int(fin.readline())
# n, k = map(int, fin.readline().split())
arr = list(map(int, fin.readline().split()))
# s = fin.readline().rstrip()
s = dict()
for i in range(n):
x = arr[i]
s[x] = (i, x)
# print(tuple(s.items()))
print(min(s.items(), key=lambda x: x[1])[0])
# print() | python | code_algorithm | [
{
"input": "6\n2 1 2 2 4 1\n",
"output": "2\n"
},
{
"input": "5\n1 3 2 1 2\n",
"output": "3\n"
},
{
"input": "2\n2018 2017\n",
"output": "2018\n"
},
{
"input": "11\n1 1 1 1 1 1 1 1 1 1 1\n",
"output": "1\n"
},
{
"input": "5\n100 1000 1000 1000 1000\n",
"output": "100\n"
},
{
"input": "2\n200000 1\n",
"output": "200000\n"
},
{
"input": "1\n200000\n",
"output": "200000\n"
},
{
"input": "3\n2 100 2\n",
"output": "100\n"
},
{
"input": "5\n20000 1 2 3 4\n",
"output": "20000\n"
},
{
"input": "3\n5 5 5\n",
"output": "5\n"
},
{
"input": "2\n10 1\n",
"output": "10\n"
},
{
"input": "1\n0\n",
"output": "0\n"
},
{
"input": "8\n200000 1 200000 1 200000 1 200000 2\n",
"output": "1\n"
},
{
"input": "2\n5 1\n",
"output": "5\n"
}
] | code_contests | python | 1 | 432ae70ad8b0bffa92cce53a9d7e4487 |
You are given an integer N. Consider all possible segments on the coordinate axis with endpoints at integer points with coordinates between 0 and N, inclusive; there will be <image> of them.
You want to draw these segments in several layers so that in each layer the segments don't overlap (they might touch at the endpoints though). You can not move the segments to a different location on the coordinate axis.
Find the minimal number of layers you have to use for the given N.
Input
The only input line contains a single integer N (1 ≤ N ≤ 100).
Output
Output a single integer - the minimal number of layers required to draw the segments for the given N.
Examples
Input
2
Output
2
Input
3
Output
4
Input
4
Output
6
Note
As an example, here are the segments and their optimal arrangement into layers for N = 4.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n=int(input())
print(((n//2)+1)*(n-(n//2))) | python | code_algorithm | [
{
"input": "3\n",
"output": "4\n"
},
{
"input": "2\n",
"output": "2\n"
},
{
"input": "4\n",
"output": "6\n"
},
{
"input": "31\n",
"output": "256\n"
},
{
"input": "68\n",
"output": "1190\n"
},
{
"input": "75\n",
"output": "1444\n"
},
{
"input": "18\n",
"output": "90\n"
},
{
"input": "22\n",
"output": "132\n"
},
{
"input": "73\n",
"output": "1369\n"
},
{
"input": "15\n",
"output": "64\n"
},
{
"input": "21\n",
"output": "121\n"
},
{
"input": "25\n",
"output": "169\n"
},
{
"input": "70\n",
"output": "1260\n"
},
{
"input": "28\n",
"output": "210\n"
},
{
"input": "93\n",
"output": "2209\n"
},
{
"input": "48\n",
"output": "600\n"
},
{
"input": "92\n",
"output": "2162\n"
},
{
"input": "83\n",
"output": "1764\n"
},
{
"input": "39\n",
"output": "400\n"
},
{
"input": "59\n",
"output": "900\n"
},
{
"input": "80\n",
"output": "1640\n"
},
{
"input": "60\n",
"output": "930\n"
},
{
"input": "91\n",
"output": "2116\n"
},
{
"input": "81\n",
"output": "1681\n"
},
{
"input": "64\n",
"output": "1056\n"
},
{
"input": "20\n",
"output": "110\n"
},
{
"input": "88\n",
"output": "1980\n"
},
{
"input": "14\n",
"output": "56\n"
},
{
"input": "86\n",
"output": "1892\n"
},
{
"input": "13\n",
"output": "49\n"
},
{
"input": "17\n",
"output": "81\n"
},
{
"input": "54\n",
"output": "756\n"
},
{
"input": "67\n",
"output": "1156\n"
},
{
"input": "12\n",
"output": "42\n"
},
{
"input": "98\n",
"output": "2450\n"
},
{
"input": "99\n",
"output": "2500\n"
},
{
"input": "37\n",
"output": "361\n"
},
{
"input": "26\n",
"output": "182\n"
},
{
"input": "45\n",
"output": "529\n"
},
{
"input": "11\n",
"output": "36\n"
},
{
"input": "66\n",
"output": "1122\n"
},
{
"input": "89\n",
"output": "2025\n"
},
{
"input": "33\n",
"output": "289\n"
},
{
"input": "38\n",
"output": "380\n"
},
{
"input": "50\n",
"output": "650\n"
},
{
"input": "7\n",
"output": "16\n"
},
{
"input": "43\n",
"output": "484\n"
},
{
"input": "63\n",
"output": "1024\n"
},
{
"input": "52\n",
"output": "702\n"
},
{
"input": "8\n",
"output": "20\n"
},
{
"input": "6\n",
"output": "12\n"
},
{
"input": "46\n",
"output": "552\n"
},
{
"input": "34\n",
"output": "306\n"
},
{
"input": "78\n",
"output": "1560\n"
},
{
"input": "41\n",
"output": "441\n"
},
{
"input": "5\n",
"output": "9\n"
},
{
"input": "55\n",
"output": "784\n"
},
{
"input": "10\n",
"output": "30\n"
},
{
"input": "27\n",
"output": "196\n"
},
{
"input": "61\n",
"output": "961\n"
},
{
"input": "44\n",
"output": "506\n"
},
{
"input": "36\n",
"output": "342\n"
},
{
"input": "74\n",
"output": "1406\n"
},
{
"input": "94\n",
"output": "2256\n"
},
{
"input": "96\n",
"output": "2352\n"
},
{
"input": "71\n",
"output": "1296\n"
},
{
"input": "40\n",
"output": "420\n"
},
{
"input": "79\n",
"output": "1600\n"
},
{
"input": "30\n",
"output": "240\n"
},
{
"input": "53\n",
"output": "729\n"
},
{
"input": "62\n",
"output": "992\n"
},
{
"input": "24\n",
"output": "156\n"
},
{
"input": "49\n",
"output": "625\n"
},
{
"input": "97\n",
"output": "2401\n"
},
{
"input": "72\n",
"output": "1332\n"
},
{
"input": "82\n",
"output": "1722\n"
},
{
"input": "56\n",
"output": "812\n"
},
{
"input": "9\n",
"output": "25\n"
},
{
"input": "1\n",
"output": "1\n"
},
{
"input": "57\n",
"output": "841\n"
},
{
"input": "95\n",
"output": "2304\n"
},
{
"input": "16\n",
"output": "72\n"
},
{
"input": "76\n",
"output": "1482\n"
},
{
"input": "42\n",
"output": "462\n"
},
{
"input": "58\n",
"output": "870\n"
},
{
"input": "29\n",
"output": "225\n"
},
{
"input": "84\n",
"output": "1806\n"
},
{
"input": "87\n",
"output": "1936\n"
},
{
"input": "85\n",
"output": "1849\n"
},
{
"input": "32\n",
"output": "272\n"
},
{
"input": "90\n",
"output": "2070\n"
},
{
"input": "51\n",
"output": "676\n"
},
{
"input": "47\n",
"output": "576\n"
},
{
"input": "35\n",
"output": "324\n"
},
{
"input": "69\n",
"output": "1225\n"
},
{
"input": "77\n",
"output": "1521\n"
},
{
"input": "19\n",
"output": "100\n"
},
{
"input": "23\n",
"output": "144\n"
},
{
"input": "65\n",
"output": "1089\n"
},
{
"input": "100\n",
"output": "2550\n"
}
] | code_contests | python | 0 | 785c90506a381cfffa93ab4193600c4d |
Polycarp is going to participate in the contest. It starts at h_1:m_1 and ends at h_2:m_2. It is guaranteed that the contest lasts an even number of minutes (i.e. m_1 \% 2 = m_2 \% 2, where x \% y is x modulo y). It is also guaranteed that the entire contest is held during a single day. And finally it is guaranteed that the contest lasts at least two minutes.
Polycarp wants to know the time of the midpoint of the contest. For example, if the contest lasts from 10:00 to 11:00 then the answer is 10:30, if the contest lasts from 11:10 to 11:12 then the answer is 11:11.
Input
The first line of the input contains two integers h_1 and m_1 in the format hh:mm.
The second line of the input contains two integers h_2 and m_2 in the same format (hh:mm).
It is guaranteed that 0 ≤ h_1, h_2 ≤ 23 and 0 ≤ m_1, m_2 ≤ 59.
It is guaranteed that the contest lasts an even number of minutes (i.e. m_1 \% 2 = m_2 \% 2, where x \% y is x modulo y). It is also guaranteed that the entire contest is held during a single day. And finally it is guaranteed that the contest lasts at least two minutes.
Output
Print two integers h_3 and m_3 (0 ≤ h_3 ≤ 23, 0 ≤ m_3 ≤ 59) corresponding to the midpoint of the contest in the format hh:mm. Print each number as exactly two digits (prepend a number with leading zero if needed), separate them with ':'.
Examples
Input
10:00
11:00
Output
10:30
Input
11:10
11:12
Output
11:11
Input
01:02
03:02
Output
02:02
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | s=input()
h1=int(s[:2])
m1=int(s[3:])
s=input()
h2=int(s[:2])
m2=int(s[3:])
#print(h1,m1,h2,m2)
m=(m2-m1)+(h2-h1)*60;
ma=(m1+m/2)%60;
ha=(h1+(m1+m/2)/60);
print('0'*(2-len(str(int(ha))))+str(int(ha))+':'+'0'*(2-len(str(int(ma))))+str(int(ma))) | python | code_algorithm | [
{
"input": "01:02\n03:02\n",
"output": "02:02\n"
},
{
"input": "11:10\n11:12\n",
"output": "11:11\n"
},
{
"input": "10:00\n11:00\n",
"output": "10:30\n"
},
{
"input": "09:10\n09:12\n",
"output": "09:11\n"
},
{
"input": "00:01\n23:59\n",
"output": "12:00\n"
},
{
"input": "09:50\n09:52\n",
"output": "09:51\n"
},
{
"input": "15:37\n20:55\n",
"output": "18:16\n"
},
{
"input": "10:08\n10:10\n",
"output": "10:09\n"
},
{
"input": "10:35\n11:55\n",
"output": "11:15\n"
},
{
"input": "09:24\n09:26\n",
"output": "09:25\n"
},
{
"input": "09:54\n09:56\n",
"output": "09:55\n"
},
{
"input": "21:06\n21:14\n",
"output": "21:10\n"
},
{
"input": "09:09\n09:11\n",
"output": "09:10\n"
},
{
"input": "09:05\n09:13\n",
"output": "09:09\n"
},
{
"input": "08:20\n19:46\n",
"output": "14:03\n"
},
{
"input": "00:00\n00:08\n",
"output": "00:04\n"
},
{
"input": "20:04\n20:08\n",
"output": "20:06\n"
},
{
"input": "10:00\n12:18\n",
"output": "11:09\n"
},
{
"input": "10:11\n10:15\n",
"output": "10:13\n"
},
{
"input": "00:00\n00:18\n",
"output": "00:09\n"
},
{
"input": "02:08\n02:10\n",
"output": "02:09\n"
},
{
"input": "10:00\n10:04\n",
"output": "10:02\n"
},
{
"input": "13:00\n13:02\n",
"output": "13:01\n"
},
{
"input": "00:00\n00:20\n",
"output": "00:10\n"
},
{
"input": "11:04\n11:08\n",
"output": "11:06\n"
},
{
"input": "06:20\n10:30\n",
"output": "08:25\n"
},
{
"input": "00:00\n02:18\n",
"output": "01:09\n"
},
{
"input": "11:40\n12:22\n",
"output": "12:01\n"
},
{
"input": "00:00\n18:18\n",
"output": "09:09\n"
},
{
"input": "09:00\n10:00\n",
"output": "09:30\n"
},
{
"input": "00:01\n19:39\n",
"output": "09:50\n"
},
{
"input": "15:15\n15:17\n",
"output": "15:16\n"
},
{
"input": "13:00\n13:30\n",
"output": "13:15\n"
},
{
"input": "09:30\n10:30\n",
"output": "10:00\n"
},
{
"input": "09:06\n09:14\n",
"output": "09:10\n"
},
{
"input": "23:57\n23:59\n",
"output": "23:58\n"
},
{
"input": "12:00\n12:18\n",
"output": "12:09\n"
},
{
"input": "08:00\n10:00\n",
"output": "09:00\n"
},
{
"input": "10:00\n10:02\n",
"output": "10:01\n"
},
{
"input": "09:08\n09:10\n",
"output": "09:09\n"
},
{
"input": "07:04\n13:08\n",
"output": "10:06\n"
},
{
"input": "08:08\n10:10\n",
"output": "09:09\n"
},
{
"input": "00:00\n00:10\n",
"output": "00:05\n"
},
{
"input": "09:00\n09:02\n",
"output": "09:01\n"
},
{
"input": "00:00\n00:12\n",
"output": "00:06\n"
},
{
"input": "08:08\n10:12\n",
"output": "09:10\n"
},
{
"input": "05:05\n05:55\n",
"output": "05:30\n"
},
{
"input": "01:21\n17:59\n",
"output": "09:40\n"
},
{
"input": "09:12\n09:14\n",
"output": "09:13\n"
},
{
"input": "01:00\n21:20\n",
"output": "11:10\n"
},
{
"input": "21:12\n22:24\n",
"output": "21:48\n"
},
{
"input": "09:00\n09:18\n",
"output": "09:09\n"
},
{
"input": "00:00\n00:02\n",
"output": "00:01\n"
},
{
"input": "03:00\n17:06\n",
"output": "10:03\n"
},
{
"input": "11:11\n12:11\n",
"output": "11:41\n"
},
{
"input": "12:12\n12:14\n",
"output": "12:13\n"
},
{
"input": "00:01\n00:03\n",
"output": "00:02\n"
},
{
"input": "12:15\n12:33\n",
"output": "12:24\n"
},
{
"input": "10:06\n10:08\n",
"output": "10:07\n"
},
{
"input": "13:13\n13:15\n",
"output": "13:14\n"
},
{
"input": "00:01\n03:01\n",
"output": "01:31\n"
},
{
"input": "09:07\n09:13\n",
"output": "09:10\n"
},
{
"input": "10:09\n10:11\n",
"output": "10:10\n"
},
{
"input": "00:00\n23:58\n",
"output": "11:59\n"
},
{
"input": "11:30\n13:30\n",
"output": "12:30\n"
},
{
"input": "00:08\n00:10\n",
"output": "00:09\n"
}
] | code_contests | python | 0.7 | 59182cbdf2dc625f1a5c42299ca10699 |
Everybody knows that opposites attract. That is the key principle of the "Perfect Matching" dating agency. The "Perfect Matching" matchmakers have classified each registered customer by his interests and assigned to the i-th client number ti ( - 10 ≤ ti ≤ 10). Of course, one number can be assigned to any number of customers.
"Perfect Matching" wants to advertise its services and publish the number of opposite couples, that is, the couples who have opposite values of t. Each couple consists of exactly two clients. The customer can be included in a couple an arbitrary number of times. Help the agency and write the program that will find the sought number by the given sequence t1, t2, ..., tn. For example, if t = (1, - 1, 1, - 1), then any two elements ti and tj form a couple if i and j have different parity. Consequently, in this case the sought number equals 4.
Of course, a client can't form a couple with him/herself.
Input
The first line of the input data contains an integer n (1 ≤ n ≤ 105) which represents the number of registered clients of the "Couple Matching". The second line contains a sequence of integers t1, t2, ..., tn ( - 10 ≤ ti ≤ 10), ti — is the parameter of the i-th customer that has been assigned to the customer by the result of the analysis of his interests.
Output
Print the number of couples of customs with opposite t. The opposite number for x is number - x (0 is opposite to itself). Couples that only differ in the clients' order are considered the same.
Note that the answer to the problem can be large enough, so you must use the 64-bit integer type for calculations. Please, do not use the %lld specificator to read or write 64-bit integers in С++. It is preferred to use cin, cout streams or the %I64d specificator.
Examples
Input
5
-3 3 0 0 3
Output
3
Input
3
0 0 0
Output
3
Note
In the first sample the couples of opposite clients are: (1,2), (1,5) и (3,4).
In the second sample any couple of clients is opposite.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | c=[0]*50
n=int(input())
a=[0]*2000001
a=[int(i) for i in input().split()]
for i in range(n):
c[int(a[i]+10)]+=1;
r=0
for i in range(10):
r+=int(c[int(i)]*c[int(20-i)])
r+=(c[10]*(c[10]-1))//2;
r=int(r)
print(r) | python | code_algorithm | [
{
"input": "5\n-3 3 0 0 3\n",
"output": "3\n"
},
{
"input": "3\n0 0 0\n",
"output": "3\n"
},
{
"input": "2\n0 0\n",
"output": "1\n"
},
{
"input": "10\n1 -1 2 -2 3 -3 4 -4 0 0\n",
"output": "5\n"
},
{
"input": "4\n1 -1 1 -1\n",
"output": "4\n"
},
{
"input": "5\n-3 2 1 -1 3\n",
"output": "2\n"
},
{
"input": "4\n-10 10 -10 10\n",
"output": "4\n"
},
{
"input": "1\n0\n",
"output": "0\n"
},
{
"input": "7\n0 10 -10 10 -10 10 10\n",
"output": "8\n"
},
{
"input": "2\n-1 2\n",
"output": "0\n"
},
{
"input": "1\n5\n",
"output": "0\n"
},
{
"input": "4\n1 -1 2 -2\n",
"output": "2\n"
},
{
"input": "2\n-10 10\n",
"output": "1\n"
},
{
"input": "2\n-3 3\n",
"output": "1\n"
},
{
"input": "2\n1 5\n",
"output": "0\n"
},
{
"input": "3\n-1 -1 2\n",
"output": "0\n"
},
{
"input": "5\n0 0 0 0 0\n",
"output": "10\n"
},
{
"input": "4\n4 4 4 -1\n",
"output": "0\n"
},
{
"input": "2\n10 -10\n",
"output": "1\n"
}
] | code_contests | python | 0.1 | c9ab0e4eca7e72b1c6ec1e367ece822c |
You have a tree of n vertices. You are going to convert this tree into n rubber bands on infinitely large plane. Conversion rule follows:
* For every pair of vertices a and b, rubber bands a and b should intersect if and only if there is an edge exists between a and b in the tree.
* Shape of rubber bands must be a simple loop. In other words, rubber band is a loop which doesn't self-intersect.
Now let's define following things:
* Rubber band a includes rubber band b, if and only if rubber band b is in rubber band a's area, and they don't intersect each other.
* Sequence of rubber bands a_{1}, a_{2}, …, a_{k} (k ≥ 2) are nested, if and only if for all i (2 ≤ i ≤ k), a_{i-1} includes a_{i}.
<image> This is an example of conversion. Note that rubber bands 5 and 6 are nested.
It can be proved that is it possible to make a conversion and sequence of nested rubber bands under given constraints.
What is the maximum length of sequence of nested rubber bands can be obtained from given tree? Find and print it.
Input
The first line contains integer n (3 ≤ n ≤ 10^{5}) — the number of vertices in tree.
The i-th of the next n-1 lines contains two integers a_{i} and b_{i} (1 ≤ a_{i} < b_{i} ≤ n) — it means there is an edge between a_{i} and b_{i}. It is guaranteed that given graph forms tree of n vertices.
Output
Print the answer.
Examples
Input
6
1 3
2 3
3 4
4 5
4 6
Output
4
Input
4
1 2
2 3
3 4
Output
2
Note
In the first sample, you can obtain a nested sequence of 4 rubber bands(1, 2, 5, and 6) by the conversion shown below. Of course, there are other conversions exist to make a nested sequence of 4 rubber bands. However, you cannot make sequence of 5 or more nested rubber bands with given tree.
<image>
You can see one of the possible conversions for the second sample below.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import os
import sys
input = sys.stdin.buffer.readline
#sys.setrecursionlimit(int(3e5))
from collections import deque
from queue import PriorityQueue
import math
import copy
# list(map(int, input().split()))
#####################################################################################
class CF(object):
def __init__(self):
self.n = int(input())
self.g = [[] for _ in range(self.n)]
self.v = [[] for _ in range(self.n)]
self.r = [] # last order path
self.f = [-1] * self.n
self.vis = [0] * self.n
for _ in range(self.n-1):
x, y = list(map(int, input().split()))
x-=1
y-=1
self.v[x].append(y)
self.v[y].append(x)
pass
self.g = copy.deepcopy(self.v)
self.dp = [[0,0] for _ in range(self.n)]
self.leaf = [0] * self.n
for i in range(self.n):
if(len(self.g[i]) == 1):
self.leaf[i] = True
pass
def dfs(self, root=0): # last order path
s = [root]
v = [self.g[root]]
self.vis[root] = 1
while(len(s)> 0):
if(v[-1] == []):
v.pop()
self.r.append(s.pop())
else:
now = v[-1].pop()
if(not self.vis[now]):
self.vis[now] = 1
self.f[now] = s[-1]
s.append(now)
v.append(self.g[now])
pass
def update(self, temp, x):
temp.append(x)
for i in range(len(temp)-1)[::-1]:
if(temp[i+1]> temp[i]):
temp[i+1], temp[i] = temp[i], temp[i+1]
pass
return temp[:2]
def main(self):
self.dfs()
ans = 0
for now in self.r:
if(self.leaf[now]):
self.dp[now][1] = 1
self.dp[now][0] = 0
else:
temp = []
t2 = []
for to in self.v[now]:
if(to != self.f[now]):
#temp = max(temp, self.dp[to][0])
temp = self.update(temp, self.dp[to][0])
t2 = self.update(t2, max(self.dp[to][1], self.dp[to][0]))
#t2 = max(t2, max(self.dp[to][1], self.dp[to][0]))
pass
self.dp[now][1] = temp[0] + 1
self.dp[now][0] = t2[0] + len(self.v[now])-1-1
ans = max(ans, 1+sum(temp))
ans = max(ans, len(self.v[now]) - len(t2) + sum(t2))
pass
ar = []
for to in self.v[0]:
ar.append(self.dp[to][0])
ar.sort()
if(len(ar)>=2):
ans = max(ans, 1+ar[-1]+ar[-2])
else:
ans = max(ans, 1+ar[-1])
ar = []
for to in self.v[0]:
ar.append(max(self.dp[to][1], self.dp[to][0]))
ar.sort()
for i in range(len(ar)-2):
ar[i] = 1
ans = max(ans, sum(ar))
print(ans)
pass
# print(self.dp)
# print(self.leaf)
# print(self.r)
# print(self.f)
if __name__ == "__main__":
cf = CF()
cf.main()
pass
| python | code_algorithm | [
{
"input": "6\n1 3\n2 3\n3 4\n4 5\n4 6\n",
"output": "4\n"
},
{
"input": "4\n1 2\n2 3\n3 4\n",
"output": "2\n"
},
{
"input": "28\n2 24\n2 4\n2 3\n1 2\n1 17\n1 21\n1 22\n10 22\n22 23\n22 26\n25 26\n16 25\n7 26\n5 7\n5 8\n5 15\n5 14\n5 12\n5 20\n11 25\n9 25\n6 9\n9 19\n9 28\n13 28\n18 28\n27 28\n",
"output": "15\n"
},
{
"input": "3\n1 3\n2 3\n",
"output": "2\n"
},
{
"input": "14\n1 2\n2 3\n3 4\n4 5\n5 6\n6 7\n7 8\n8 9\n5 10\n10 11\n10 12\n10 13\n10 14\n",
"output": "7\n"
}
] | code_contests | python | 0 | 64e98588da9e4eb9c29d7b201acf69bf |
There are n warriors in a row. The power of the i-th warrior is a_i. All powers are pairwise distinct.
You have two types of spells which you may cast:
1. Fireball: you spend x mana and destroy exactly k consecutive warriors;
2. Berserk: you spend y mana, choose two consecutive warriors, and the warrior with greater power destroys the warrior with smaller power.
For example, let the powers of warriors be [2, 3, 7, 8, 11, 5, 4], and k = 3. If you cast Berserk on warriors with powers 8 and 11, the resulting sequence of powers becomes [2, 3, 7, 11, 5, 4]. Then, for example, if you cast Fireball on consecutive warriors with powers [7, 11, 5], the resulting sequence of powers becomes [2, 3, 4].
You want to turn the current sequence of warriors powers a_1, a_2, ..., a_n into b_1, b_2, ..., b_m. Calculate the minimum amount of mana you need to spend on it.
Input
The first line contains two integers n and m (1 ≤ n, m ≤ 2 ⋅ 10^5) — the length of sequence a and the length of sequence b respectively.
The second line contains three integers x, k, y (1 ≤ x, y, ≤ 10^9; 1 ≤ k ≤ n) — the cost of fireball, the range of fireball and the cost of berserk respectively.
The third line contains n integers a_1, a_2, ..., a_n (1 ≤ a_i ≤ n). It is guaranteed that all integers a_i are pairwise distinct.
The fourth line contains m integers b_1, b_2, ..., b_m (1 ≤ b_i ≤ n). It is guaranteed that all integers b_i are pairwise distinct.
Output
Print the minimum amount of mana for turning the sequnce a_1, a_2, ..., a_n into b_1, b_2, ..., b_m, or -1 if it is impossible.
Examples
Input
5 2
5 2 3
3 1 4 5 2
3 5
Output
8
Input
4 4
5 1 4
4 3 1 2
2 4 3 1
Output
-1
Input
4 4
2 1 11
1 3 2 4
1 3 2 4
Output
0
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import os
import sys
from io import BytesIO, IOBase
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")
# ------------------------------
def RL(): return map(int, sys.stdin.readline().rstrip().split())
def RLL(): return list(map(int, sys.stdin.readline().rstrip().split()))
def N(): return int(input())
def comb(n, m): return factorial(n) / (factorial(m) * factorial(n - m)) if n >= m else 0
def perm(n, m): return factorial(n) // (factorial(n - m)) if n >= m else 0
def mdis(x1, y1, x2, y2): return abs(x1 - x2) + abs(y1 - y2)
mod = 998244353
INF = float('inf')
from math import factorial
from collections import Counter, defaultdict, deque
from heapq import heapify, heappop, heappush
# ------------------------------
# f = open('../input.txt')
# sys.stdin = f
def main():
n, m = RL()
x, k, y = RL()
arra = RLL()
arrb = RLL()
arra+=[arrb[-1]]; arrb+=[arrb[-1]]
m+=1; n+=1
pn, pm = 0, 0
res = 0
while pn<n and pm<m:
nma = nmi = 0
ma = max(arrb[pm], arrb[max(pm-1, 0)])
while pn<n and arra[pn]!=arrb[pm]:
if arra[pn]>ma:
nma+=1
else:
nmi+=1
pn+=1
if pn >= n: break
num = nma+nmi
tms = num//k
ots = num%k
if nma != 0:
if num - k < 0: break
if x<y*k:
res+=tms*x + ots*y
else:
if nma!=0:
res+=(num-k)*y + x
else:
res+=num*y
pn+=1
pm+=1
print(res if pm==m and pn==n else -1)
if __name__ == "__main__":
main()
| python | code_algorithm | [
{
"input": "5 2\n5 2 3\n3 1 4 5 2\n3 5\n",
"output": "8\n"
},
{
"input": "4 4\n2 1 11\n1 3 2 4\n1 3 2 4\n",
"output": "0\n"
},
{
"input": "4 4\n5 1 4\n4 3 1 2\n2 4 3 1\n",
"output": "-1\n"
},
{
"input": "4 4\n10 1 5\n1 2 3 4\n1 3 2 4\n",
"output": "-1\n"
},
{
"input": "1 1\n2 1 2\n1\n1\n",
"output": "0\n"
},
{
"input": "5 2\n5 2 3\n3 1 4 2 5\n3 2\n",
"output": "-1\n"
},
{
"input": "23 5\n10 3 4\n2 1 4 11 8 10 5 6 7 9 12 3 14 13 16 18 21 15 17 19 20 23 22\n4 6 3 18 23\n",
"output": "64\n"
},
{
"input": "23 5\n10 3 3\n2 1 4 11 8 10 5 6 7 9 12 3 14 13 16 18 21 15 17 19 20 23 22\n4 6 3 18 23\n",
"output": "56\n"
}
] | code_contests | python | 0 | f1d85476039ebc552d227f426d0a6922 |
You've gotten an n × m sheet of squared paper. Some of its squares are painted. Let's mark the set of all painted squares as A. Set A is connected. Your task is to find the minimum number of squares that we can delete from set A to make it not connected.
A set of painted squares is called connected, if for every two squares a and b from this set there is a sequence of squares from the set, beginning in a and ending in b, such that in this sequence any square, except for the last one, shares a common side with the square that follows next in the sequence. An empty set and a set consisting of exactly one square are connected by definition.
Input
The first input line contains two space-separated integers n and m (1 ≤ n, m ≤ 50) — the sizes of the sheet of paper.
Each of the next n lines contains m characters — the description of the sheet of paper: the j-th character of the i-th line equals either "#", if the corresponding square is painted (belongs to set A), or equals "." if the corresponding square is not painted (does not belong to set A). It is guaranteed that the set of all painted squares A is connected and isn't empty.
Output
On the first line print the minimum number of squares that need to be deleted to make set A not connected. If it is impossible, print -1.
Examples
Input
5 4
####
#..#
#..#
#..#
####
Output
2
Input
5 5
#####
#...#
#####
#...#
#####
Output
2
Note
In the first sample you can delete any two squares that do not share a side. After that the set of painted squares is not connected anymore.
The note to the second sample is shown on the figure below. To the left there is a picture of the initial set of squares. To the right there is a set with deleted squares. The deleted squares are marked with crosses.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def add(vertex,neighbour):
if vertex in graph:
graph[vertex].append(neighbour)
else:
graph[vertex]=[neighbour]
if neighbour in graph: #####for undirected part remove to get directed
graph[neighbour].append(vertex)
else:
graph[neighbour]=[vertex]
def dfs(graph,n,currnode):
visited=[False for x in range(n+1)]
stack=[currnode]
ans=[]
while stack:
currnode=stack[-1]
if visited[currnode]==False:
visited[currnode]=True
ans.append(currnode)
if currnode in graph1:
for neighbour in graph[currnode]:
if visited[neighbour]==False:
visited[neighbour]=True
stack.append(neighbour)
ans.append(neighbour)
break #####if we remove break it becomes bfs
else:
stack.pop() ####we are backtracking to previous node which is in our stack
else:
stack.pop()
return ans
n,m=[int(x) for x in input().split()]
nodes=n*m
arr=[None for i in range(nodes)]
for i in range(n):
s=input()
for j in range(m):
arr[i*m+j]=s[j]
graph={}
for i in range(m,nodes):
if i%m!=0 and arr[i]=="#":
if arr[i-1]=="#":
add(i,i-1)
r=i//m;c=i%m
if arr[(r-1)*m+c]=="#":
add(i,(r-1)*m+c)
elif i%m==0 and arr[i]=="#":
#if arr[i+1]=="#":
#add(i,i+1)
r=i//m
if arr[(r-1)*m]=="#":
add((r-1)*m,i)
for i in range(1,m):
if arr[i]=="#" and arr[i-1]=="#":
add(i,i-1)
for i in range(nodes):
if arr[i]=="#" and i not in graph:
graph[i]=[]
graph1=graph.copy()
if len(graph)<3:
print(-1)
else:
found=False
firstnode=[];secondnnode=[]
for key,val in graph.items():
if len(firstnode)==0:
firstnode=[key,val]
d=len(dfs(graph,nodes,firstnode[0]))
elif len(secondnnode)==0:
secondnnode=[key,val]
else:
del graph1[key]
if len(dfs(graph1,nodes,firstnode[0]))-1!=d-1:
found=True
break
graph1[key]=val
else:
del graph1[firstnode[0]]
if len(dfs(graph1,nodes,secondnnode[0]))-1!=d-1:
found=True
graph1[firstnode[0]]=firstnode[1]
del graph1[secondnnode[0]]
if len(dfs(graph1,nodes,firstnode[0]))-1!=d-1:
found=True
graph1[secondnnode[0]]=secondnnode[1]
if found==True:
print(1)
else:
print(2) | python | code_algorithm | [
{
"input": "5 4\n####\n#..#\n#..#\n#..#\n####\n",
"output": "2\n"
},
{
"input": "5 5\n#####\n#...#\n#####\n#...#\n#####\n",
"output": "2\n"
},
{
"input": "10 10\n..........\n.#####....\n.#........\n.#.###....\n.#.###....\n.#.###....\n.#..##....\n.#####....\n..........\n..........\n",
"output": "1\n"
},
{
"input": "5 3\n###\n###\n.#.\n###\n###\n",
"output": "1\n"
},
{
"input": "5 5\n.....\n.....\n..#..\n..#..\n.....\n",
"output": "-1\n"
},
{
"input": "9 9\n#########\n#.......#\n#.#####.#\n#.#.#.#.#\n#.#.#.#.#\n#.#.#.#.#\n#.#####.#\n#...#...#\n#########\n",
"output": "1\n"
},
{
"input": "1 2\n##\n",
"output": "-1\n"
},
{
"input": "20 20\n.....######.........\n.....#....#.........\n.....#....#.........\n.....#....#.........\n.....############...\n.........##.....#...\n..........#.....#...\n..........#.....#...\n..........###...#...\n............#...#...\n............#...#...\n............#...#...\n............#...#...\n............#####...\n....................\n....................\n....................\n....................\n....................\n....................\n",
"output": "2\n"
},
{
"input": "5 5\n#####\n#####\n#....\n#####\n#####\n",
"output": "1\n"
},
{
"input": "2 1\n#\n#\n",
"output": "-1\n"
},
{
"input": "3 3\n.#.\n.#.\n...\n",
"output": "-1\n"
},
{
"input": "2 5\n##.##\n#####\n",
"output": "1\n"
},
{
"input": "2 2\n##\n..\n",
"output": "-1\n"
},
{
"input": "2 2\n.#\n##\n",
"output": "1\n"
},
{
"input": "3 3\n###\n#.#\n###\n",
"output": "2\n"
},
{
"input": "1 10\n.########.\n",
"output": "1\n"
},
{
"input": "5 5\n###..\n###..\n#..##\n#####\n#####\n",
"output": "1\n"
},
{
"input": "3 5\n##.##\n#####\n##.##\n",
"output": "1\n"
},
{
"input": "5 7\n.#####.\n.#...#.\n###.###\n#.#.#.#\n###.###\n",
"output": "1\n"
},
{
"input": "2 2\n##\n#.\n",
"output": "1\n"
},
{
"input": "3 3\n.#.\n###\n.#.\n",
"output": "1\n"
},
{
"input": "6 2\n##\n##\n#.\n##\n##\n##\n",
"output": "1\n"
},
{
"input": "2 2\n##\n##\n",
"output": "2\n"
},
{
"input": "3 3\n...\n.#.\n...\n",
"output": "-1\n"
},
{
"input": "4 4\n####\n####\n####\n####\n",
"output": "2\n"
},
{
"input": "10 10\n..........\n..........\n..........\n..........\n###.......\n#.#.......\n####......\n####......\n####......\n###.......\n",
"output": "2\n"
},
{
"input": "1 50\n##................................................\n",
"output": "-1\n"
},
{
"input": "50 1\n#\n#\n#\n#\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n.\n",
"output": "1\n"
},
{
"input": "10 10\n..........\n..........\n..........\n..........\n...###....\n...#.#....\n...#####..\n.....#.#..\n.....###..\n..........\n",
"output": "1\n"
},
{
"input": "3 50\n....##############################################\n....#.......#...#..#....#..............#.........#\n....##############################################\n",
"output": "2\n"
},
{
"input": "2 5\n#####\n##.##\n",
"output": "1\n"
},
{
"input": "2 2\n.#\n.#\n",
"output": "-1\n"
},
{
"input": "5 5\n#####\n#####\n##.##\n##.##\n##.##\n",
"output": "2\n"
},
{
"input": "1 1\n#\n",
"output": "-1\n"
},
{
"input": "7 7\n##.###.\n#######\n#..#..#\n####.##\n.....#.\n######.\n.##....\n",
"output": "1\n"
}
] | code_contests | python | 0.3 | 3e90f0389d26a4d04aea0a6b5a173bbf |
Bajtek is learning to skate on ice. He's a beginner, so his only mode of transportation is pushing off from a snow drift to the north, east, south or west and sliding until he lands in another snow drift. He has noticed that in this way it's impossible to get from some snow drifts to some other by any sequence of moves. He now wants to heap up some additional snow drifts, so that he can get from any snow drift to any other one. He asked you to find the minimal number of snow drifts that need to be created.
We assume that Bajtek can only heap up snow drifts at integer coordinates.
Input
The first line of input contains a single integer n (1 ≤ n ≤ 100) — the number of snow drifts. Each of the following n lines contains two integers xi and yi (1 ≤ xi, yi ≤ 1000) — the coordinates of the i-th snow drift.
Note that the north direction coinсides with the direction of Oy axis, so the east direction coinсides with the direction of the Ox axis. All snow drift's locations are distinct.
Output
Output the minimal number of snow drifts that need to be created in order for Bajtek to be able to reach any snow drift from any other one.
Examples
Input
2
2 1
1 2
Output
1
Input
2
2 1
4 1
Output
0
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
g = []
for i in range(n):
t = input().split()
g.append([ int(t[0]), int(t[1]), False ])
def visita(i):
g[i][2] = True
for j in range(n):
if g[j][2] == False and (g[i][0] == g[j][0] or g[i][1] == g[j][1]):
visita(j)
cnt = -1
for i in range(n):
if g[i][2] == False:
cnt += 1
visita(i)
print(cnt) | python | code_algorithm | [
{
"input": "2\n2 1\n1 2\n",
"output": "1\n"
},
{
"input": "2\n2 1\n4 1\n",
"output": "0\n"
},
{
"input": "55\n1 1\n1 14\n2 2\n2 19\n3 1\n3 3\n3 8\n3 14\n3 23\n4 1\n4 4\n5 5\n5 8\n5 15\n6 2\n6 3\n6 4\n6 6\n7 7\n8 8\n8 21\n9 9\n10 1\n10 10\n11 9\n11 11\n12 12\n13 13\n14 14\n15 15\n15 24\n16 5\n16 16\n17 5\n17 10\n17 17\n17 18\n17 22\n17 27\n18 18\n19 19\n20 20\n21 20\n21 21\n22 22\n23 23\n24 14\n24 24\n25 25\n26 8\n26 11\n26 26\n27 3\n27 27\n28 28\n",
"output": "5\n"
},
{
"input": "4\n1 1\n2 2\n3 2\n3 1\n",
"output": "0\n"
},
{
"input": "36\n952 981\n885 900\n803 790\n107 129\n670 654\n143 132\n66 58\n813 819\n849 837\n165 198\n247 228\n15 39\n619 618\n105 138\n868 855\n965 957\n293 298\n613 599\n227 212\n745 754\n723 704\n877 858\n503 487\n678 697\n592 595\n155 135\n962 982\n93 89\n660 673\n225 212\n967 987\n690 680\n804 813\n489 518\n240 221\n111 124\n",
"output": "34\n"
},
{
"input": "32\n643 877\n842 614\n387 176\n99 338\n894 798\n652 728\n611 648\n622 694\n579 781\n243 46\n322 305\n198 438\n708 579\n246 325\n536 459\n874 593\n120 277\n989 907\n223 110\n35 130\n761 692\n690 661\n518 766\n226 93\n678 597\n725 617\n661 574\n775 496\n56 416\n14 189\n358 359\n898 901\n",
"output": "31\n"
},
{
"input": "3\n1 1\n1 2\n2 2\n",
"output": "0\n"
},
{
"input": "4\n325 343\n425 442\n785 798\n275 270\n",
"output": "3\n"
},
{
"input": "20\n1 1\n2 2\n3 3\n3 9\n4 4\n5 2\n5 5\n5 7\n5 8\n6 2\n6 6\n6 9\n7 7\n8 8\n9 4\n9 7\n9 9\n10 2\n10 9\n10 10\n",
"output": "1\n"
},
{
"input": "14\n685 808\n542 677\n712 747\n832 852\n187 410\n399 338\n626 556\n530 635\n267 145\n215 209\n559 684\n944 949\n753 596\n601 823\n",
"output": "13\n"
},
{
"input": "4\n1 3\n2 1\n3 2\n3 1\n",
"output": "1\n"
},
{
"input": "29\n462 519\n871 825\n127 335\n156 93\n576 612\n885 830\n634 779\n340 105\n744 795\n716 474\n93 139\n563 805\n137 276\n177 101\n333 14\n391 437\n873 588\n817 518\n460 597\n572 670\n140 303\n392 441\n273 120\n862 578\n670 639\n410 161\n544 577\n193 116\n252 195\n",
"output": "28\n"
},
{
"input": "3\n1 2\n1 3\n1 4\n",
"output": "0\n"
},
{
"input": "23\n102 84\n562 608\n200 127\n952 999\n465 496\n322 367\n728 690\n143 147\n855 867\n861 866\n26 59\n300 273\n255 351\n192 246\n70 111\n365 277\n32 104\n298 319\n330 354\n241 141\n56 125\n315 298\n412 461\n",
"output": "22\n"
},
{
"input": "32\n652 712\n260 241\n27 154\n188 16\n521 351\n518 356\n452 540\n790 827\n339 396\n336 551\n897 930\n828 627\n27 168\n180 113\n134 67\n794 671\n812 711\n100 241\n686 813\n138 289\n384 506\n884 932\n913 959\n470 508\n730 734\n373 478\n788 862\n392 426\n148 68\n113 49\n713 852\n924 894\n",
"output": "29\n"
},
{
"input": "4\n3 1\n2 1\n2 2\n1 2\n",
"output": "0\n"
},
{
"input": "7\n948 946\n130 130\n761 758\n941 938\n971 971\n387 385\n509 510\n",
"output": "6\n"
},
{
"input": "4\n1 1\n2 2\n1 2\n2 1\n",
"output": "0\n"
},
{
"input": "7\n1 1\n2 2\n3 3\n4 4\n1 2\n2 3\n3 4\n",
"output": "0\n"
},
{
"input": "7\n312 298\n86 78\n73 97\n619 594\n403 451\n538 528\n71 86\n",
"output": "6\n"
},
{
"input": "4\n5 5\n5 4\n6 3\n6 4\n",
"output": "0\n"
},
{
"input": "3\n1 1\n2 2\n2 1\n",
"output": "0\n"
},
{
"input": "3\n939 867\n411 427\n757 708\n",
"output": "2\n"
},
{
"input": "28\n462 483\n411 401\n118 94\n111 127\n5 6\n70 52\n893 910\n73 63\n818 818\n182 201\n642 633\n900 886\n893 886\n684 700\n157 173\n953 953\n671 660\n224 225\n832 801\n152 157\n601 585\n115 101\n739 722\n611 606\n659 642\n461 469\n702 689\n649 653\n",
"output": "25\n"
},
{
"input": "3\n1 2\n3 4\n3 2\n",
"output": "0\n"
},
{
"input": "5\n175 158\n16 2\n397 381\n668 686\n957 945\n",
"output": "4\n"
},
{
"input": "12\n548 506\n151 198\n370 380\n655 694\n654 690\n407 370\n518 497\n819 827\n765 751\n802 771\n741 752\n653 662\n",
"output": "11\n"
},
{
"input": "1\n321 88\n",
"output": "0\n"
},
{
"input": "4\n1 1\n1 2\n2 1\n2 2\n",
"output": "0\n"
},
{
"input": "23\n952 907\n345 356\n812 807\n344 328\n242 268\n254 280\n1000 990\n80 78\n424 396\n595 608\n755 813\n383 380\n55 56\n598 633\n203 211\n508 476\n600 593\n206 192\n855 882\n517 462\n967 994\n642 657\n493 488\n",
"output": "22\n"
},
{
"input": "3\n1 1\n2 2\n1 2\n",
"output": "0\n"
},
{
"input": "9\n811 859\n656 676\n76 141\n945 951\n497 455\n18 55\n335 294\n267 275\n656 689\n",
"output": "7\n"
},
{
"input": "7\n1 1\n1 2\n2 2\n3 3\n3 4\n4 4\n1 4\n",
"output": "0\n"
},
{
"input": "3\n175 201\n907 909\n388 360\n",
"output": "2\n"
},
{
"input": "10\n579 816\n806 590\n830 787\n120 278\n677 800\n16 67\n188 251\n559 560\n87 67\n104 235\n",
"output": "8\n"
},
{
"input": "5\n664 666\n951 941\n739 742\n844 842\n2 2\n",
"output": "4\n"
},
{
"input": "6\n1 1\n2 1\n2 2\n2 4\n4 3\n2 3\n",
"output": "0\n"
},
{
"input": "19\n802 820\n368 248\n758 794\n455 378\n876 888\n771 814\n245 177\n586 555\n844 842\n364 360\n820 856\n731 624\n982 975\n825 856\n122 121\n862 896\n42 4\n792 841\n828 820\n",
"output": "16\n"
},
{
"input": "7\n429 506\n346 307\n99 171\n853 916\n322 263\n115 157\n906 924\n",
"output": "6\n"
},
{
"input": "10\n1 1\n1 2\n1 3\n1 4\n5 5\n6 6\n7 7\n8 8\n9 9\n100 100\n",
"output": "6\n"
},
{
"input": "30\n89 3\n167 156\n784 849\n943 937\n144 95\n24 159\n80 120\n657 683\n585 596\n43 147\n909 964\n131 84\n345 389\n333 321\n91 126\n274 325\n859 723\n866 922\n622 595\n690 752\n902 944\n127 170\n426 383\n905 925\n172 284\n793 810\n414 510\n890 884\n123 24\n267 255\n",
"output": "29\n"
},
{
"input": "17\n660 646\n440 442\n689 618\n441 415\n922 865\n950 972\n312 366\n203 229\n873 860\n219 199\n344 308\n169 176\n961 992\n153 84\n201 230\n987 938\n834 815\n",
"output": "16\n"
},
{
"input": "11\n798 845\n722 911\n374 270\n629 537\n748 856\n831 885\n486 641\n751 829\n609 492\n98 27\n654 663\n",
"output": "10\n"
},
{
"input": "24\n171 35\n261 20\n4 206\n501 446\n961 912\n581 748\n946 978\n463 514\n841 889\n341 466\n842 967\n54 102\n235 261\n925 889\n682 672\n623 636\n268 94\n635 710\n474 510\n697 794\n586 663\n182 184\n806 663\n468 459\n",
"output": "21\n"
},
{
"input": "21\n12 12\n13 12\n12 11\n13 13\n10 10\n11 10\n11 11\n501 500\n501 501\n503 502\n500 500\n503 503\n502 501\n502 502\n700 700\n702 702\n703 702\n701 701\n702 701\n703 703\n701 700\n",
"output": "2\n"
},
{
"input": "36\n429 424\n885 972\n442 386\n512 511\n751 759\n4 115\n461 497\n496 408\n8 23\n542 562\n296 331\n448 492\n412 395\n109 166\n622 640\n379 355\n251 262\n564 586\n66 115\n275 291\n666 611\n629 534\n510 567\n635 666\n738 803\n420 369\n92 17\n101 144\n141 92\n258 258\n184 235\n492 456\n311 210\n394 357\n531 512\n634 636\n",
"output": "34\n"
},
{
"input": "14\n25 23\n499 406\n193 266\n823 751\n219 227\n101 138\n978 992\n43 74\n997 932\n237 189\n634 538\n774 740\n842 767\n742 802\n",
"output": "13\n"
},
{
"input": "23\n420 424\n280 303\n515 511\n956 948\n799 803\n441 455\n362 369\n299 289\n823 813\n982 967\n876 878\n185 157\n529 551\n964 989\n655 656\n1 21\n114 112\n45 56\n935 937\n1000 997\n934 942\n360 366\n648 621\n",
"output": "22\n"
},
{
"input": "40\n685 711\n433 403\n703 710\n491 485\n616 619\n288 282\n884 871\n367 352\n500 511\n977 982\n51 31\n576 564\n508 519\n755 762\n22 20\n368 353\n232 225\n953 955\n452 436\n311 330\n967 988\n369 364\n791 803\n150 149\n651 661\n118 93\n398 387\n748 766\n852 852\n230 228\n555 545\n515 519\n667 678\n867 862\n134 146\n859 863\n96 99\n486 469\n303 296\n780 786\n",
"output": "38\n"
},
{
"input": "2\n802 903\n476 348\n",
"output": "1\n"
},
{
"input": "6\n1 1\n1 2\n2 2\n3 1\n3 2\n3 3\n",
"output": "0\n"
},
{
"input": "21\n1 1\n1 9\n2 1\n2 2\n2 5\n2 6\n2 9\n3 3\n3 8\n4 1\n4 4\n5 5\n5 8\n6 6\n7 7\n8 8\n9 9\n10 4\n10 10\n11 5\n11 11\n",
"output": "1\n"
},
{
"input": "50\n1 1\n2 2\n2 9\n3 3\n4 4\n4 9\n4 16\n4 24\n5 5\n6 6\n7 7\n8 8\n8 9\n8 20\n9 9\n10 10\n11 11\n12 12\n13 13\n14 7\n14 14\n14 16\n14 25\n15 4\n15 6\n15 15\n15 22\n16 6\n16 16\n17 17\n18 18\n19 6\n19 19\n20 20\n21 21\n22 6\n22 22\n23 23\n24 6\n24 7\n24 8\n24 9\n24 24\n25 1\n25 3\n25 5\n25 7\n25 23\n25 24\n25 25\n",
"output": "7\n"
},
{
"input": "3\n1 2\n2 1\n2 2\n",
"output": "0\n"
},
{
"input": "5\n312 284\n490 509\n730 747\n504 497\n782 793\n",
"output": "4\n"
},
{
"input": "8\n1 3\n1 1\n4 1\n2 2\n2 5\n5 9\n5 1\n5 4\n",
"output": "1\n"
},
{
"input": "32\n325 327\n20 22\n72 74\n935 933\n664 663\n726 729\n785 784\n170 171\n315 314\n577 580\n984 987\n313 317\n434 435\n962 961\n55 54\n46 44\n743 742\n434 433\n617 612\n332 332\n883 886\n940 936\n793 792\n645 644\n611 607\n418 418\n465 465\n219 218\n167 164\n56 54\n403 405\n210 210\n",
"output": "29\n"
},
{
"input": "6\n535 699\n217 337\n508 780\n180 292\n393 112\n732 888\n",
"output": "5\n"
},
{
"input": "6\n4 4\n3 4\n5 4\n4 5\n4 3\n3 1\n",
"output": "0\n"
},
{
"input": "22\n1 1\n1 3\n1 4\n1 8\n1 9\n1 11\n2 2\n3 3\n4 4\n4 5\n5 5\n6 6\n6 8\n7 7\n8 3\n8 4\n8 8\n9 9\n10 10\n11 4\n11 9\n11 11\n",
"output": "3\n"
},
{
"input": "5\n1 1\n1 2\n2 2\n3 1\n3 3\n",
"output": "0\n"
},
{
"input": "3\n1 1\n2 1\n2 2\n",
"output": "0\n"
},
{
"input": "6\n1 11\n6 8\n11 10\n1 10\n11 11\n6 9\n",
"output": "1\n"
},
{
"input": "6\n1 1\n2 2\n2 1\n2 4\n4 3\n2 3\n",
"output": "0\n"
}
] | code_contests | python | 0.4 | 25ad2fdbe8dee1f207928b04c60170e3 |
Squirrel Liss is interested in sequences. She also has preferences of integers. She thinks n integers a1, a2, ..., an are good.
Now she is interested in good sequences. A sequence x1, x2, ..., xk is called good if it satisfies the following three conditions:
* The sequence is strictly increasing, i.e. xi < xi + 1 for each i (1 ≤ i ≤ k - 1).
* No two adjacent elements are coprime, i.e. gcd(xi, xi + 1) > 1 for each i (1 ≤ i ≤ k - 1) (where gcd(p, q) denotes the greatest common divisor of the integers p and q).
* All elements of the sequence are good integers.
Find the length of the longest good sequence.
Input
The input consists of two lines. The first line contains a single integer n (1 ≤ n ≤ 105) — the number of good integers. The second line contains a single-space separated list of good integers a1, a2, ..., an in strictly increasing order (1 ≤ ai ≤ 105; ai < ai + 1).
Output
Print a single integer — the length of the longest good sequence.
Examples
Input
5
2 3 4 6 9
Output
4
Input
9
1 2 3 5 6 7 8 9 10
Output
4
Note
In the first example, the following sequences are examples of good sequences: [2; 4; 6; 9], [2; 4; 6], [3; 9], [6]. The length of the longest good sequence is 4.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | # Legends Always Come Up with Solution
# Author: Manvir Singh
import os
import sys
from io import BytesIO, IOBase
from collections import Counter
def seieve_prime_factorisation(n):
p, i = [1] * (n + 1), 2
while i * i <= n:
if p[i] == 1:
for j in range(i * i, n + 1, i):
p[j] = i
i += 1
return p
def prime_factorisation_by_seive(p, x):
c = Counter()
while p[x] != 1:
c[p[x]] += 1
x = x // p[x]
c[x] += 1
return c
def main():
n=int(input())
a=list(map(int,input().split()))
p=seieve_prime_factorisation(max(a))
dp=[1]*n
b=Counter()
for i in range(n-1,-1,-1):
z=prime_factorisation_by_seive(p,a[i])
ma=0
for j in z:
ma=max(ma,b[j])
dp[i]+=ma
for j in z:
b[j]=max(b[j],dp[i])
print(max(dp))
# (region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline().rstrip("\r\n")
if __name__ == "__main__":
main() | python | code_algorithm | [
{
"input": "9\n1 2 3 5 6 7 8 9 10\n",
"output": "4\n"
},
{
"input": "5\n2 3 4 6 9\n",
"output": "4\n"
},
{
"input": "2\n1009 2018\n",
"output": "2\n"
},
{
"input": "7\n1 2 3 4 7 9 10\n",
"output": "3\n"
},
{
"input": "2\n601 1202\n",
"output": "2\n"
},
{
"input": "8\n3 4 5 6 7 8 9 10\n",
"output": "4\n"
},
{
"input": "2\n5101 10202\n",
"output": "2\n"
},
{
"input": "3\n21 67 243\n",
"output": "2\n"
},
{
"input": "5\n2 3 7 9 10\n",
"output": "2\n"
},
{
"input": "1\n99991\n",
"output": "1\n"
},
{
"input": "3\n1 4 7\n",
"output": "1\n"
},
{
"input": "3\n3 14 22\n",
"output": "2\n"
},
{
"input": "10\n2 4 8 67 128 324 789 1296 39877 98383\n",
"output": "7\n"
},
{
"input": "10\n2 3 45 67 89 101 234 567 890 1234\n",
"output": "5\n"
},
{
"input": "3\n150 358 382\n",
"output": "3\n"
},
{
"input": "1\n1\n",
"output": "1\n"
},
{
"input": "4\n1 2 4 6\n",
"output": "3\n"
},
{
"input": "10\n2 3 4 5 6 7 8 9 10 11\n",
"output": "5\n"
},
{
"input": "9\n1 2 3 4 5 6 7 9 10\n",
"output": "4\n"
},
{
"input": "10\n1 2 4 8 16 32 33 64 128 256\n",
"output": "8\n"
},
{
"input": "10\n2 3 10 40 478 3877 28787 88888 99999 100000\n",
"output": "6\n"
},
{
"input": "10\n2 3 4 5 6 8 9 10 17 92\n",
"output": "6\n"
},
{
"input": "1\n4\n",
"output": "1\n"
},
{
"input": "10\n13 2187 2197 4567 5200 29873 67866 98798 99999 100000\n",
"output": "6\n"
},
{
"input": "44\n1 5 37 97 107 147 185 187 195 241 249 295 311 323 341 345 363 391 425 431 473 525 539 541 555 577 595 611 647 695 757 759 775 779 869 877 927 935 963 965 967 969 973 975\n",
"output": "15\n"
},
{
"input": "49\n10 34 58 72 126 166 176 180 198 200 208 228 238 248 302 332 340 344 350 354 380 406 418 428 438 442 482 532 536 544 546 554 596 626 642 682 684 704 714 792 804 820 862 880 906 946 954 966 970\n",
"output": "49\n"
}
] | code_contests | python | 0.6 | 30d2aa766fea0453a9b6a9d4d6400b23 |
Little penguin Polo loves his home village. The village has n houses, indexed by integers from 1 to n. Each house has a plaque containing an integer, the i-th house has a plaque containing integer pi (1 ≤ pi ≤ n).
Little penguin Polo loves walking around this village. The walk looks like that. First he stands by a house number x. Then he goes to the house whose number is written on the plaque of house x (that is, to house px), then he goes to the house whose number is written on the plaque of house px (that is, to house ppx), and so on.
We know that:
1. When the penguin starts walking from any house indexed from 1 to k, inclusive, he can walk to house number 1.
2. When the penguin starts walking from any house indexed from k + 1 to n, inclusive, he definitely cannot walk to house number 1.
3. When the penguin starts walking from house number 1, he can get back to house number 1 after some non-zero number of walks from a house to a house.
You need to find the number of ways you may write the numbers on the houses' plaques so as to fulfill the three above described conditions. Print the remainder after dividing this number by 1000000007 (109 + 7).
Input
The single line contains two space-separated integers n and k (1 ≤ n ≤ 1000, 1 ≤ k ≤ min(8, n)) — the number of the houses and the number k from the statement.
Output
In a single line print a single integer — the answer to the problem modulo 1000000007 (109 + 7).
Examples
Input
5 2
Output
54
Input
7 4
Output
1728
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | MOD = 10 ** 9 + 7
n, k = map(int, input().split())
ans = pow(n - k, n - k, MOD) * pow(k, k - 1, MOD)
print(ans % MOD) | python | code_algorithm | [
{
"input": "5 2\n",
"output": "54\n"
},
{
"input": "7 4\n",
"output": "1728\n"
},
{
"input": "475 5\n",
"output": "449471303\n"
},
{
"input": "10 7\n",
"output": "3176523\n"
},
{
"input": "685 7\n",
"output": "840866481\n"
},
{
"input": "8 5\n",
"output": "16875\n"
},
{
"input": "12 8\n",
"output": "536870912\n"
},
{
"input": "9 8\n",
"output": "2097152\n"
},
{
"input": "137 5\n",
"output": "160909830\n"
},
{
"input": "2 2\n",
"output": "2\n"
},
{
"input": "657 3\n",
"output": "771999480\n"
},
{
"input": "1000 8\n",
"output": "339760446\n"
},
{
"input": "473 4\n",
"output": "145141007\n"
},
{
"input": "2 1\n",
"output": "1\n"
},
{
"input": "100 8\n",
"output": "331030906\n"
},
{
"input": "1000 6\n",
"output": "834332109\n"
},
{
"input": "1000 1\n",
"output": "760074701\n"
},
{
"input": "1000 5\n",
"output": "583047503\n"
},
{
"input": "8 8\n",
"output": "2097152\n"
},
{
"input": "1 1\n",
"output": "1\n"
},
{
"input": "876 8\n",
"output": "703293724\n"
},
{
"input": "1000 2\n",
"output": "675678679\n"
},
{
"input": "50 2\n",
"output": "628702797\n"
},
{
"input": "1000 4\n",
"output": "660270610\n"
},
{
"input": "999 7\n",
"output": "490075342\n"
},
{
"input": "975 8\n",
"output": "531455228\n"
},
{
"input": "3 3\n",
"output": "9\n"
},
{
"input": "227 6\n",
"output": "407444135\n"
},
{
"input": "1000 3\n",
"output": "330155123\n"
},
{
"input": "8 1\n",
"output": "823543\n"
}
] | code_contests | python | 0.2 | 63d97818e4ccb7b4ec88b37e8bca0d47 |
The end of the school year is near and Ms. Manana, the teacher, will soon have to say goodbye to a yet another class. She decided to prepare a goodbye present for her n students and give each of them a jigsaw puzzle (which, as wikipedia states, is a tiling puzzle that requires the assembly of numerous small, often oddly shaped, interlocking and tessellating pieces).
The shop assistant told the teacher that there are m puzzles in the shop, but they might differ in difficulty and size. Specifically, the first jigsaw puzzle consists of f1 pieces, the second one consists of f2 pieces and so on.
Ms. Manana doesn't want to upset the children, so she decided that the difference between the numbers of pieces in her presents must be as small as possible. Let A be the number of pieces in the largest puzzle that the teacher buys and B be the number of pieces in the smallest such puzzle. She wants to choose such n puzzles that A - B is minimum possible. Help the teacher and find the least possible value of A - B.
Input
The first line contains space-separated integers n and m (2 ≤ n ≤ m ≤ 50). The second line contains m space-separated integers f1, f2, ..., fm (4 ≤ fi ≤ 1000) — the quantities of pieces in the puzzles sold in the shop.
Output
Print a single integer — the least possible difference the teacher can obtain.
Examples
Input
4 6
10 12 10 7 5 22
Output
5
Note
Sample 1. The class has 4 students. The shop sells 6 puzzles. If Ms. Manana buys the first four puzzles consisting of 10, 12, 10 and 7 pieces correspondingly, then the difference between the sizes of the largest and the smallest puzzle will be equal to 5. It is impossible to obtain a smaller difference. Note that the teacher can also buy puzzles 1, 3, 4 and 5 to obtain the difference 5.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,m = map(int,input().split())
f = list(map(int,input().split()))
f.sort()
a = []
for i in range(m-n+1):
a.append(f[i+n-1]-f[i])
print(min(a))
| python | code_algorithm | [
{
"input": "4 6\n10 12 10 7 5 22\n",
"output": "5\n"
},
{
"input": "2 2\n1000 4\n",
"output": "996\n"
},
{
"input": "2 3\n4 502 1000\n",
"output": "498\n"
},
{
"input": "40 50\n17 20 43 26 41 37 14 8 30 35 30 24 43 8 42 9 41 50 41 35 27 32 35 43 28 36 31 16 5 7 23 16 14 29 8 39 12 16 36 18 49 39 33 37 38 6 6 27 23 17\n",
"output": "31\n"
},
{
"input": "2 2\n4 4\n",
"output": "0\n"
},
{
"input": "40 50\n4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4\n",
"output": "0\n"
},
{
"input": "6 50\n6 8 7 8 5 4 4 5 7 8 6 5 7 4 7 7 7 8 6 4 6 6 8 8 7 7 8 7 5 8 5 4 4 7 8 4 4 6 6 6 8 7 4 7 6 6 5 8 4 7\n",
"output": "0\n"
},
{
"input": "4 5\n818 136 713 59 946\n",
"output": "759\n"
},
{
"input": "49 50\n58 820 826 960 271 294 473 102 925 318 729 672 244 914 796 646 868 6 893 882 726 203 528 498 271 195 355 459 721 680 547 147 631 116 169 804 145 996 133 559 110 257 771 476 576 251 607 314 427 886\n",
"output": "938\n"
},
{
"input": "2 10\n4 5 6 7 8 9 10 11 12 12\n",
"output": "0\n"
},
{
"input": "2 25\n782 633 152 416 432 825 115 97 386 357 836 310 530 413 354 373 847 882 913 682 729 582 671 674 94\n",
"output": "3\n"
},
{
"input": "4 25\n226 790 628 528 114 64 239 279 619 39 894 763 763 847 525 93 882 697 999 643 650 244 159 884 190\n",
"output": "31\n"
},
{
"input": "50 50\n374 573 323 744 190 806 485 247 628 336 491 606 702 321 991 678 337 579 86 240 993 208 668 686 855 205 363 177 719 249 896 919 782 434 59 647 787 996 286 216 636 212 546 903 958 559 544 126 608 993\n",
"output": "937\n"
},
{
"input": "3 20\n446 852 783 313 549 965 40 88 86 617 479 118 768 34 47 826 366 957 463 903\n",
"output": "13\n"
},
{
"input": "3 3\n4 1000 4\n",
"output": "996\n"
},
{
"input": "2 50\n971 889 628 39 253 157 925 694 129 516 660 272 738 319 611 816 142 717 514 392 41 105 132 676 958 118 306 768 600 685 103 857 704 346 857 309 23 718 618 161 176 379 846 834 640 468 952 878 164 997\n",
"output": "0\n"
},
{
"input": "25 50\n582 146 750 905 313 509 402 21 488 512 32 898 282 64 579 869 37 996 377 929 975 697 666 837 311 205 116 992 533 298 648 268 54 479 792 595 152 69 267 417 184 433 894 603 988 712 24 414 301 176\n",
"output": "412\n"
},
{
"input": "37 50\n14 5 11 17 8 20 19 16 20 11 17 20 16 9 14 14 13 18 11 20 8 8 8 5 19 17 6 18 10 20 9 7 12 6 14 17 4 4 10 13 7 4 11 6 20 19 12 12 15 19\n",
"output": "12\n"
}
] | code_contests | python | 0.8 | 63f54f44e840190e13f26d990bd024b6 |
Iahub helps his grandfather at the farm. Today he must milk the cows. There are n cows sitting in a row, numbered from 1 to n from left to right. Each cow is either facing to the left or facing to the right. When Iahub milks a cow, all the cows that see the current cow get scared and lose one unit of the quantity of milk that they can give. A cow facing left sees all the cows with lower indices than her index, and a cow facing right sees all the cows with higher indices than her index. A cow that got scared once can get scared again (and lose one more unit of milk). A cow that has been milked once cannot get scared and lose any more milk. You can assume that a cow never loses all the milk she can give (a cow gives an infinitely amount of milk).
Iahub can decide the order in which he milks the cows. But he must milk each cow exactly once. Iahub wants to lose as little milk as possible. Print the minimum amount of milk that is lost.
Input
The first line contains an integer n (1 ≤ n ≤ 200000). The second line contains n integers a1, a2, ..., an, where ai is 0 if the cow number i is facing left, and 1 if it is facing right.
Output
Print a single integer, the minimum amount of lost milk.
Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
4
0 0 1 0
Output
1
Input
5
1 0 1 0 1
Output
3
Note
In the first sample Iahub milks the cows in the following order: cow 3, cow 4, cow 2, cow 1. When he milks cow 3, cow 4 loses 1 unit of milk. After that, no more milk is lost.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | #! usr/bin/env python3
# coding:UTF-8
# wdnmd UKE
# wcnm UKE
ans = 0
cnt = 0
N = input()
t = input().split()
for i in t:
if(int(i) == 1):
cnt += 1
else:
ans += cnt
print(ans)
| python | code_algorithm | [
{
"input": "5\n1 0 1 0 1\n",
"output": "3\n"
},
{
"input": "4\n0 0 1 0\n",
"output": "1\n"
},
{
"input": "4\n1 1 1 1\n",
"output": "0\n"
},
{
"input": "1\n0\n",
"output": "0\n"
},
{
"input": "2\n1 0\n",
"output": "1\n"
},
{
"input": "2\n0 0\n",
"output": "0\n"
},
{
"input": "2\n1 1\n",
"output": "0\n"
},
{
"input": "2\n0 1\n",
"output": "0\n"
},
{
"input": "100\n1 1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 0 0 0 0 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 0 1 0 0 1 1 0 1 1 1 1 1 1 0 0 0 0 1 1 0 0 0 0 0 1 1 0 1 0 0 1 0 0 1 0 1 0 0 0 0 1 0 1 1 0 1 1 1 1 0 0 1 1 0 0 0 0 1 1 1 0 0 1 0 0\n",
"output": "1446\n"
},
{
"input": "50\n1 1 0 1 1 1 1 1 1 0 0 1 1 0 1 1 0 0 1 0 1 1 0 1 1 1 1 0 1 0 1 0 1 1 1 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0\n",
"output": "416\n"
},
{
"input": "1\n1\n",
"output": "0\n"
}
] | code_contests | python | 0.3 | d337837decce25296e2788db031d814b |
Quite recently, a very smart student named Jury decided that lectures are boring, so he downloaded a game called "Black Square" on his super cool touchscreen phone.
In this game, the phone's screen is divided into four vertical strips. Each second, a black square appears on some of the strips. According to the rules of the game, Jury must use this second to touch the corresponding strip to make the square go away. As Jury is both smart and lazy, he counted that he wastes exactly ai calories on touching the i-th strip.
You've got a string s, describing the process of the game and numbers a1, a2, a3, a4. Calculate how many calories Jury needs to destroy all the squares?
Input
The first line contains four space-separated integers a1, a2, a3, a4 (0 ≤ a1, a2, a3, a4 ≤ 104).
The second line contains string s (1 ≤ |s| ≤ 105), where the і-th character of the string equals "1", if on the i-th second of the game the square appears on the first strip, "2", if it appears on the second strip, "3", if it appears on the third strip, "4", if it appears on the fourth strip.
Output
Print a single integer — the total number of calories that Jury wastes.
Examples
Input
1 2 3 4
123214
Output
13
Input
1 5 3 2
11221
Output
13
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | #!/usr/bin/env python3
a=list(map(int,input().split()))
s=input()
print(a[0]*s.count('1') + a[1]*s.count('2') + a[2]*s.count('3') + a[3]*s.count('4'))
| python | code_algorithm | [
{
"input": "1 2 3 4\n123214\n",
"output": "13\n"
},
{
"input": "1 5 3 2\n11221\n",
"output": "13\n"
},
{
"input": "1 2 3 4\n11111111111111111111111111111111111111111111111111\n",
"output": "50\n"
},
{
"input": "5651 6882 6954 4733\n2442313421\n",
"output": "60055\n"
},
{
"input": "1 2 3 4\n123412\n",
"output": "13\n"
},
{
"input": "2343 7653 1242 5432\n3\n",
"output": "1242\n"
},
{
"input": "2 3 1 4\n121321232412342112312313213123123412131231231232\n",
"output": "105\n"
},
{
"input": "1809 1302 7164 6122\n3144121413113111223311232232114144321414421243443243422322144324121433444342231344234443332241322442\n",
"output": "420780\n"
},
{
"input": "1 2 3 4\n1111111111111222222222233333333333444444444444444\n",
"output": "126\n"
},
{
"input": "1 2 3 4\n23123231321231231231231231221232123121312321\n",
"output": "87\n"
},
{
"input": "1 2 3 4\n4\n",
"output": "4\n"
},
{
"input": "4 3 2 1\n2\n",
"output": "3\n"
},
{
"input": "0 0 0 0\n1\n",
"output": "0\n"
},
{
"input": "50 50 50 50\n11111111111111111111111111111111111111111111111111111\n",
"output": "2650\n"
},
{
"input": "3163 5778 83 7640\n11141442444\n",
"output": "64270\n"
},
{
"input": "2343 7653 1242 5432\n4\n",
"output": "5432\n"
},
{
"input": "2343 7653 1242 5432\n1\n",
"output": "2343\n"
},
{
"input": "5 5 5 1\n3422\n",
"output": "16\n"
},
{
"input": "0 0 0 0\n4132\n",
"output": "0\n"
},
{
"input": "2343 7653 1242 5432\n2\n",
"output": "7653\n"
}
] | code_contests | python | 1 | 781d3442ff7c817e7fc2db550e2a9941 |
Dreamoon wants to climb up a stair of n steps. He can climb 1 or 2 steps at each move. Dreamoon wants the number of moves to be a multiple of an integer m.
What is the minimal number of moves making him climb to the top of the stairs that satisfies his condition?
Input
The single line contains two space separated integers n, m (0 < n ≤ 10000, 1 < m ≤ 10).
Output
Print a single integer — the minimal number of moves being a multiple of m. If there is no way he can climb satisfying condition print - 1 instead.
Examples
Input
10 2
Output
6
Input
3 5
Output
-1
Note
For the first sample, Dreamoon could climb in 6 moves with following sequence of steps: {2, 2, 2, 2, 1, 1}.
For the second sample, there are only three valid sequence of steps {2, 1}, {1, 2}, {1, 1, 1} with 2, 2, and 3 steps respectively. All these numbers are not multiples of 5.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,m = map(int, input().split())
if n < m:
print(-1)
else:
if n % 2 == 0:
b = n//2
else:
b = (n//2)+1
while b % m != 0:
b = b + 1
print(b) | python | code_algorithm | [
{
"input": "10 2\n",
"output": "6\n"
},
{
"input": "3 5\n",
"output": "-1\n"
},
{
"input": "3979 2\n",
"output": "1990\n"
},
{
"input": "18 10\n",
"output": "10\n"
},
{
"input": "3832 6\n",
"output": "1920\n"
},
{
"input": "8 2\n",
"output": "4\n"
},
{
"input": "29 7\n",
"output": "21\n"
},
{
"input": "3275 8\n",
"output": "1640\n"
},
{
"input": "7688 5\n",
"output": "3845\n"
},
{
"input": "21 10\n",
"output": "20\n"
},
{
"input": "9999 3\n",
"output": "5001\n"
},
{
"input": "20 10\n",
"output": "10\n"
},
{
"input": "4 2\n",
"output": "2\n"
},
{
"input": "9999 9\n",
"output": "5004\n"
},
{
"input": "10000 2\n",
"output": "5000\n"
},
{
"input": "5227 4\n",
"output": "2616\n"
},
{
"input": "10000 3\n",
"output": "5001\n"
},
{
"input": "6240 7\n",
"output": "3122\n"
},
{
"input": "3 2\n",
"output": "2\n"
},
{
"input": "2 2\n",
"output": "2\n"
},
{
"input": "10000 10\n",
"output": "5000\n"
},
{
"input": "1 2\n",
"output": "-1\n"
},
{
"input": "6 3\n",
"output": "3\n"
},
{
"input": "3230 8\n",
"output": "1616\n"
},
{
"input": "5 2\n",
"output": "4\n"
},
{
"input": "24 9\n",
"output": "18\n"
},
{
"input": "9 9\n",
"output": "9\n"
},
{
"input": "9985 6\n",
"output": "4998\n"
},
{
"input": "10 5\n",
"output": "5\n"
},
{
"input": "4 5\n",
"output": "-1\n"
},
{
"input": "9999 10\n",
"output": "5000\n"
},
{
"input": "9999 2\n",
"output": "5000\n"
},
{
"input": "6 4\n",
"output": "4\n"
},
{
"input": "19 10\n",
"output": "10\n"
},
{
"input": "4608 5\n",
"output": "2305\n"
}
] | code_contests | python | 0.4 | bdbe1f78c9c50bdc7572ddbde98ef252 |
Vasya studies positional numeral systems. Unfortunately, he often forgets to write the base of notation in which the expression is written. Once he saw a note in his notebook saying a + b = ?, and that the base of the positional notation wasn’t written anywhere. Now Vasya has to choose a base p and regard the expression as written in the base p positional notation. Vasya understood that he can get different results with different bases, and some bases are even invalid. For example, expression 78 + 87 in the base 16 positional notation is equal to FF16, in the base 15 positional notation it is equal to 11015, in the base 10 one — to 16510, in the base 9 one — to 1769, and in the base 8 or lesser-based positional notations the expression is invalid as all the numbers should be strictly less than the positional notation base. Vasya got interested in what is the length of the longest possible expression value. Help him to find this length.
The length of a number should be understood as the number of numeric characters in it. For example, the length of the longest answer for 78 + 87 = ? is 3. It is calculated like that in the base 15 (11015), base 10 (16510), base 9 (1769) positional notations, for example, and in some other ones.
Input
The first letter contains two space-separated numbers a and b (1 ≤ a, b ≤ 1000) which represent the given summands.
Output
Print a single number — the length of the longest answer.
Examples
Input
78 87
Output
3
Input
1 1
Output
2
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a,b=list(map(int,input().split()))
k=int(max(str(a)+str(b)))+1
carry=0
l=max(len(str(a)),len(str(b)))
for itr in range(l):
if a%10+b%10+carry<k: carry=0
else: carry=1
a//=10
b//=10
#print(a,b)
if carry: print(l+1)
else: print(l) | python | code_algorithm | [
{
"input": "78 87\n",
"output": "3\n"
},
{
"input": "1 1\n",
"output": "2\n"
},
{
"input": "208 997\n",
"output": "4\n"
},
{
"input": "12 34\n",
"output": "3\n"
},
{
"input": "104 938\n",
"output": "4\n"
},
{
"input": "1000 539\n",
"output": "4\n"
},
{
"input": "840 975\n",
"output": "4\n"
},
{
"input": "999 1\n",
"output": "4\n"
},
{
"input": "1 11\n",
"output": "3\n"
},
{
"input": "9 7\n",
"output": "2\n"
},
{
"input": "1 999\n",
"output": "4\n"
},
{
"input": "998 998\n",
"output": "4\n"
},
{
"input": "1000 1000\n",
"output": "5\n"
},
{
"input": "450 277\n",
"output": "3\n"
},
{
"input": "39 269\n",
"output": "3\n"
},
{
"input": "464 205\n",
"output": "4\n"
},
{
"input": "333 1\n",
"output": "4\n"
},
{
"input": "1 466\n",
"output": "3\n"
},
{
"input": "262 685\n",
"output": "4\n"
},
{
"input": "87 8\n",
"output": "3\n"
},
{
"input": "999 1000\n",
"output": "4\n"
},
{
"input": "15 778\n",
"output": "3\n"
},
{
"input": "836 101\n",
"output": "4\n"
},
{
"input": "692 339\n",
"output": "4\n"
},
{
"input": "149 1\n",
"output": "3\n"
},
{
"input": "99 99\n",
"output": "3\n"
},
{
"input": "87 1\n",
"output": "2\n"
},
{
"input": "411 517\n",
"output": "4\n"
},
{
"input": "3 1\n",
"output": "2\n"
},
{
"input": "398 815\n",
"output": "4\n"
},
{
"input": "1 2\n",
"output": "2\n"
},
{
"input": "499 499\n",
"output": "3\n"
},
{
"input": "11 99\n",
"output": "3\n"
},
{
"input": "633 581\n",
"output": "4\n"
},
{
"input": "1000 999\n",
"output": "4\n"
},
{
"input": "998 1000\n",
"output": "4\n"
},
{
"input": "133 851\n",
"output": "4\n"
},
{
"input": "43 21\n",
"output": "3\n"
},
{
"input": "999 999\n",
"output": "4\n"
},
{
"input": "1 3\n",
"output": "2\n"
},
{
"input": "1000 1\n",
"output": "4\n"
},
{
"input": "1000 998\n",
"output": "4\n"
},
{
"input": "47 8\n",
"output": "2\n"
},
{
"input": "99 11\n",
"output": "3\n"
},
{
"input": "1 1000\n",
"output": "4\n"
},
{
"input": "247 1000\n",
"output": "4\n"
},
{
"input": "2 3\n",
"output": "2\n"
},
{
"input": "3 2\n",
"output": "2\n"
},
{
"input": "379 999\n",
"output": "4\n"
},
{
"input": "555 555\n",
"output": "4\n"
},
{
"input": "2 2\n",
"output": "2\n"
},
{
"input": "2 1\n",
"output": "2\n"
},
{
"input": "877 2\n",
"output": "3\n"
},
{
"input": "427 376\n",
"output": "4\n"
},
{
"input": "810 413\n",
"output": "4\n"
},
{
"input": "11 11\n",
"output": "3\n"
},
{
"input": "667 373\n",
"output": "4\n"
},
{
"input": "999 619\n",
"output": "4\n"
},
{
"input": "721 253\n",
"output": "4\n"
},
{
"input": "79 1\n",
"output": "2\n"
},
{
"input": "84 89\n",
"output": "3\n"
},
{
"input": "998 999\n",
"output": "4\n"
},
{
"input": "999 998\n",
"output": "4\n"
},
{
"input": "2 511\n",
"output": "3\n"
},
{
"input": "986 216\n",
"output": "4\n"
},
{
"input": "890 789\n",
"output": "4\n"
},
{
"input": "3 3\n",
"output": "2\n"
}
] | code_contests | python | 0 | 4a55d6843fe826a04913e23095194da4 |
A social network for dogs called DH (DogHouse) has k special servers to recompress uploaded videos of cute cats. After each video is uploaded, it should be recompressed on one (any) of the servers, and only after that it can be saved in the social network.
We know that each server takes one second to recompress a one minute fragment. Thus, any server takes m seconds to recompress a m minute video.
We know the time when each of the n videos were uploaded to the network (in seconds starting from the moment all servers started working). All videos appear at different moments of time and they are recompressed in the order they appear. If some video appeared at time s, then its recompressing can start at that very moment, immediately. Some videos can await recompressing when all the servers are busy. In this case, as soon as a server is available, it immediately starts recompressing another video. The videos that await recompressing go in a queue. If by the moment the videos started being recompressed some servers are available, then any of them starts recompressing the video.
For each video find the moment it stops being recompressed.
Input
The first line of the input contains integers n and k (1 ≤ n, k ≤ 5·105) — the number of videos and servers, respectively.
Next n lines contain the descriptions of the videos as pairs of integers si, mi (1 ≤ si, mi ≤ 109), where si is the time in seconds when the i-th video appeared and mi is its duration in minutes. It is guaranteed that all the si's are distinct and the videos are given in the chronological order of upload, that is in the order of increasing si.
Output
Print n numbers e1, e2, ..., en, where ei is the time in seconds after the servers start working, when the i-th video will be recompressed.
Examples
Input
3 2
1 5
2 5
3 5
Output
6
7
11
Input
6 1
1 1000000000
2 1000000000
3 1000000000
4 1000000000
5 1000000000
6 3
Output
1000000001
2000000001
3000000001
4000000001
5000000001
5000000004
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import atexit
import io
import sys
_INPUT_LINES = sys.stdin.read().splitlines()
input = iter(_INPUT_LINES).__next__
_OUTPUT_BUFFER = io.StringIO()
sys.stdout = _OUTPUT_BUFFER
@atexit.register
def write():
sys.__stdout__.write(_OUTPUT_BUFFER.getvalue())
def main():
import heapq
n, k = [int(i) for i in input().split()]
s, m = [0] * n, [0] * n
for i in range(n):
s[i], m[i] = [int(i) for i in input().split()]
current_time = 0
event = []
ans = [0] * n
i = 0
while len(event) or i < n:
if (len(event) == 0):
current_time = max(current_time, s[i])
heapq.heappush(event, (current_time + m[i], i))
i += 1
continue
e_time, e_id = event[0]
if e_time == current_time or i == n:
current_time = max(current_time, e_time)
ans[e_id] = e_time
heapq.heappop(event)
continue
if s[i] < e_time and len(event) < k:
current_time = max(current_time, s[i])
heapq.heappush(event, (current_time + m[i], i))
i += 1
continue
else:
current_time = ans[e_id] = e_time
heapq.heappop(event)
continue
print("\n".join([str(i) for i in ans]))
main() | python | code_algorithm | [
{
"input": "6 1\n1 1000000000\n2 1000000000\n3 1000000000\n4 1000000000\n5 1000000000\n6 3\n",
"output": "1000000001\n2000000001\n3000000001\n4000000001\n5000000001\n5000000004\n"
},
{
"input": "3 2\n1 5\n2 5\n3 5\n",
"output": "6\n7\n11\n"
},
{
"input": "10 2\n1 5650\n2 4753\n3 7632\n4 688\n5 8853\n6 284\n7 4659\n8 5650\n9 9768\n10 3905\n",
"output": "5651\n4755\n12387\n6339\n15192\n12671\n17330\n20842\n27098\n24747\n"
},
{
"input": "10 4\n1 1\n2 2\n3 1\n4 1\n5 1\n6 1\n7 1\n8 2\n9 1\n10 1\n",
"output": "2\n4\n4\n5\n6\n7\n8\n10\n10\n11\n"
},
{
"input": "10 6\n1 1\n2 1\n3 1\n4 1\n5 1\n6 1\n7 1\n8 1\n9 1\n10 1\n",
"output": "2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n"
},
{
"input": "1 1\n1 1\n",
"output": "2\n"
},
{
"input": "1 1\n1000000000 10000\n",
"output": "1000010000\n"
},
{
"input": "10 4\n126995987 385321200\n195616854 752754110\n197489309 899442094\n285439286 247570387\n308620877 957032819\n428385669 227675453\n673115425 94614781\n766412355 105231165\n943783548 855684033\n994356572 699602107\n",
"output": "512317187\n948370964\n1096931403\n533009673\n1469350006\n760685126\n855299907\n960531072\n1804054997\n1693958679\n"
},
{
"input": "10 8\n1 5036\n7 9294\n8 6011\n10 8273\n11 9203\n12 7037\n14 383\n16 4568\n18 8136\n19 8288\n",
"output": "5037\n9301\n6019\n8283\n9214\n7049\n397\n4584\n8533\n12872\n"
},
{
"input": "10 2\n4 2\n7 2\n8 2\n9 1\n10 2\n12 2\n14 1\n15 2\n17 2\n19 1\n",
"output": "6\n9\n10\n10\n12\n14\n15\n17\n19\n20\n"
},
{
"input": "10 7\n195901104 7859\n265432683 5489\n290824505 5754\n346976046 4969\n406206484 8390\n522669517 6810\n800443397 4979\n839536223 1825\n918231479 8117\n941210310 1322\n",
"output": "195908963\n265438172\n290830259\n346981015\n406214874\n522676327\n800448376\n839538048\n918239596\n941211632\n"
},
{
"input": "10 10\n999999991 1000000000\n999999992 1000000000\n999999993 1000000000\n999999994 1000000000\n999999995 1000000000\n999999996 1000000000\n999999997 1000000000\n999999998 1000000000\n999999999 1000000000\n1000000000 1000000000\n",
"output": "1999999991\n1999999992\n1999999993\n1999999994\n1999999995\n1999999996\n1999999997\n1999999998\n1999999999\n2000000000\n"
}
] | code_contests | python | 0.7 | 2e966bc7462a3ee7d5118ea4e4a81ed8 |
The Hedgehog recently remembered one of his favorite childhood activities, — solving puzzles, and got into it with new vigor. He would sit day in, day out with his friend buried into thousands of tiny pieces of the picture, looking for the required items one by one.
Soon the Hedgehog came up with a brilliant idea: instead of buying ready-made puzzles, one can take his own large piece of paper with some picture and cut it into many small rectangular pieces, then mix them and solve the resulting puzzle, trying to piece together the picture. The resulting task is even more challenging than the classic puzzle: now all the fragments have the same rectangular shape, and one can assemble the puzzle only relying on the picture drawn on the pieces.
All puzzle pieces turn out to be of the same size X × Y, because the picture is cut first by horizontal cuts with the pitch of X, then with vertical cuts with the pitch of Y. If we denote the initial size of the picture as A × B, then A must be divisible by X and B must be divisible by Y (X and Y are integer numbers).
However, not every such cutting of the picture will result in a good puzzle. The Hedgehog finds a puzzle good if no two pieces in it are the same (It is allowed to rotate the pieces when comparing them, but it is forbidden to turn them over).
Your task is to count for a given picture the number of good puzzles that you can make from it, and also to find the puzzle with the minimal piece size.
Input
The first line contains two numbers A and B which are the sizes of the picture. They are positive integers not exceeding 20.
Then follow A lines containing B symbols each, describing the actual picture. The lines only contain uppercase English letters.
Output
In the first line print the number of possible good puzzles (in other words, the number of pairs (X, Y) such that the puzzle with the corresponding element sizes will be good). This number should always be positive, because the whole picture is a good puzzle itself.
In the second line print two numbers — the sizes X and Y of the smallest possible element among all good puzzles. The comparison is made firstly by the area XY of one element and secondly — by the length X.
Examples
Input
2 4
ABDC
ABDC
Output
3
2 1
Input
2 6
ABCCBA
ABCCBA
Output
1
2 6
Note
The picture in the first sample test has the following good puzzles: (2, 1), (2, 2), (2, 4).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def rotate(puzzle):
n_puzzle = []
for y in range(len(puzzle) - 1, -1, -1):
n_puzzle.append(puzzle[y])
result = []
for x in range(len(puzzle[0])):
col = []
for y in range(len(puzzle)):
col.append(n_puzzle[y][x])
result.append(col)
return result
def puzzle_match(p1, p2):
r1 = p2
r2 = rotate(p2)
r3 = rotate(r2)
r4 = rotate(r3)
variants = [r1, r2, r3, r4]
return p1 in variants
def make_puzzles(puzzle, x_cuts, y_cuts, a, b):
x_size = a // x_cuts
y_size = b // y_cuts
result = []
for x in range(x_cuts):
for y in range(y_cuts):
p = []
for i in range(x_size):
row = []
for j in range(y_size):
row.append(puzzle[x * x_size + i][y * y_size + j])
p.append(row)
result.append(p)
return result
class CodeforcesTask54BSolution:
def __init__(self):
self.result = ''
self.a_b = []
self.puzzle = []
def read_input(self):
self.a_b = [int(x) for x in input().split(" ")]
for x in range(self.a_b[0]):
self.puzzle.append(list(input()))
def process_task(self):
x_cuts = [x for x in range(1, self.a_b[0] + 1) if not self.a_b[0] % x][::-1]
y_cuts = [x for x in range(1, self.a_b[1] + 1) if not self.a_b[1] % x][::-1]
variants = 0
varianted = []
for x in x_cuts:
for y in y_cuts:
puzzles = make_puzzles(self.puzzle, x, y, self.a_b[0], self.a_b[1])
rotated = []
valid = True
for p in puzzles:
r1 = p
r2 = rotate(r1)
r3 = rotate(r2)
r4 = rotate(r3)
for r in (r1, r2, r3, r4):
if r in rotated:
valid = False
break
if not valid:
break
rotated += [r1, r2, r3, r4]
if valid:
variants += 1
varianted.append((self.a_b[0] // x, self.a_b[1] // y))
varianted.sort(key=lambda x: x[0]*x[1])
self.result = "{0}\n{1} {2}".format(variants, varianted[0][0], varianted[0][1])
def get_result(self):
return self.result
if __name__ == "__main__":
Solution = CodeforcesTask54BSolution()
Solution.read_input()
Solution.process_task()
print(Solution.get_result())
| python | code_algorithm | [
{
"input": "2 4\nABDC\nABDC\n",
"output": "3\n2 1\n"
},
{
"input": "2 6\nABCCBA\nABCCBA\n",
"output": "1\n2 6\n"
},
{
"input": "12 18\nCBBCAACABACCACABBC\nABCAACABAABCBCBCCC\nBCAACCCBBBABBACBBA\nACCBCBBBAABACCACCC\nCAABCCCACACCBACACC\nBBBCBCACCABCCBCBBB\nBAABBCACAAAAACCBCB\nBAABAABACBCABACBCA\nAABCBCCBCCABACCCAC\nCCBBBAACCCBCACCCBB\nCBABACBBBABCBACCCB\nAABACCCBCCACBCACCB\n",
"output": "24\n4 2\n"
},
{
"input": "10 11\nABBBAABABBB\nBBAABABBAAB\nAABBBBBAAAA\nBBABABAAABA\nAABABBBAABB\nAAABABAABAB\nBBABBBABBBB\nBBABABABBAA\nBBABABAAABB\nBABAABAABAB\n",
"output": "5\n10 1\n"
},
{
"input": "14 16\nCBCCCABCBBBAAACC\nAABAACBACBCBACCA\nABBBABAACCACCCCC\nBBACACACCCCBBBAC\nBBCAABACBAACBCAA\nAAACCACBBCABABCB\nABCBCAAAAACBABBA\nAAABBBCCBAACBBCA\nBBAACBABBBCCBAAC\nBAABCCBAAABAACAC\nABBBBCBAACACCBCB\nBCABACBBBCAACACC\nACCCCABCCCBBCAAC\nBCBBCCCBCBCCACAA\n",
"output": "15\n7 1\n"
},
{
"input": "9 9\nIZHKRCRTM\nLQBOENMNQ\nYLNVFBFUY\nACTTYWABL\nYSEGWNQHC\nTZASWPPAG\nLLZTKFPMV\nGXBETPPPN\nUCPEFNJKN\n",
"output": "8\n1 3\n"
},
{
"input": "16 16\nACABBCCBAABCCCCB\nAABCACCAAACACABB\nBCCCAABBAACBACAA\nBCACAABBBCAAAABA\nACCBABCCACABBCCC\nCCAAACACACBCABCA\nBCAACBBBCACBBCAB\nBABBCBBBCCCBAACC\nBBBBBABACBABBCBA\nABAACBACCACBBABA\nABAACBACCBCBCCBB\nBCACCCAABCBBCBCB\nBBBCCCBCCBCBACCA\nAABCBBBBACCACCBB\nBCABCCCBCBBBCBCC\nACCCCCCBBBAABACC\n",
"output": "17\n4 2\n"
},
{
"input": "1 1\nC\n",
"output": "1\n1 1\n"
},
{
"input": "12 13\nTHSGJEPTDFEIJ\nOWPJGXSXJRYGD\nVYENWXFWSOSMX\nFZDFXFPWEIYYV\nOEODFOGQWJEEU\nSQRNSBTAMLQRU\nLXGZERSWTJWQK\nLGRJJMDTZVZWJ\nDWVBTSZKFUAHT\nHSSZHXAWVWMHB\nJZOCNFUHTHQYV\nTUHDMTZAQVWDL\n",
"output": "10\n3 1\n"
},
{
"input": "12 11\nBBAAAABBAAB\nBBABBABBABB\nBAABABBABBA\nBABBBAAAABA\nABBAABBBBBA\nABBABBABABB\nAAABBBABBBB\nBAABAAABAAA\nAAAABBBBABA\nAAABAAABBBB\nBAAAAABABAB\nABBBBABABBB\n",
"output": "7\n1 11\n"
},
{
"input": "5 5\nABAAA\nBBBAA\nABABA\nBBABB\nBAAAB\n",
"output": "3\n1 5\n"
},
{
"input": "5 5\nDZEZF\nOHZZC\nCNDOX\nNVYDP\nUCIAX\n",
"output": "3\n1 5\n"
},
{
"input": "4 6\nABCDEF\nGHIJKL\nMNOPQR\nSTUVWX\n",
"output": "12\n1 1\n"
},
{
"input": "2 2\nCC\nBB\n",
"output": "2\n1 2\n"
},
{
"input": "12 13\nBBABABAAAAABA\nABAAAAAAAABBA\nABBBABAAAAABA\nBBBAABABBABBB\nABABAAABABABB\nABBAABAABBAAA\nAABABBAAABBAB\nABBBBBABBAABA\nBBBBBABBABBAA\nAAAAAAABBBAAB\nBAABBBAABAAAA\nBBBBBBABABABA\n",
"output": "7\n12 1\n"
},
{
"input": "17 17\nBCBAAABAABCCCAAAC\nBBAABCABBAACCACBB\nABCCBAABBCCABBBAB\nAACCBBACCAAACCACA\nABBACBAAAABBABCAA\nACBACCCABAABBCABB\nCBCCCBCACBABCAAAA\nAAABACACABABCCCBC\nCABABBABBBABBBCAB\nBCBCBAAACCCACACBA\nBBACABACAAABCCBBC\nABAABBABCCAABBCCA\nAABBACBCBCCBAACBB\nBBABCBBCCCBCACBCB\nBABCBBCCABCABBAAA\nAABAABBBBAACAABCC\nBACCCBBCCABBBACBB\n",
"output": "3\n1 17\n"
},
{
"input": "18 19\nLEXQWPUXGOWSELHIQPY\nZUYPTUDHEEQVRWBCXBU\nZUPMYQQQFHGKZZDMLFM\nCASSUVIKQKCEALUDDFK\nFDBZOXULVGFARYPNAQY\nWEFLTZOSOAGAMBWNGVC\nEVAPNTSSIMKNBOAHFSC\nUHTWEBRCEUJSARNEWYI\nGXGSDCDUIWYQRZUPQBZ\nFMYJUOHENURMDINJGCN\nHIBATJCOGWWRQWTLXDH\nRDDXJNZHQGUWPNGIDRO\nAJGHDUCGGLPYYDYSFRS\nAZGBVLJYYZWSQGBFJVU\nQJJRSHZFOECHGRGALML\nJKDMLPREFTISSSAJKJN\nGRHGVYSVQLYKCIMBIKA\nMSHRBZJJLDHBCAWAJBN\n",
"output": "10\n3 1\n"
},
{
"input": "16 15\nPFUMRKDISIBBVYP\nMZKXWWSQXADAPEB\nVTBYXGWQYZTHBHY\nONGURZKWHZDKIDF\nGCMHQQNJJXHHPVU\nNLMUXXKZOFNMFTG\nANDDDPHEDVWVHLC\nOYGXUHIMYPNIXCT\nILCGDQZNCSTIILX\nZVSYMJBHAUEXZMY\nMYOKFPJKKJLKVWI\nUEMUOOAJSNTOLEN\nLKIROZUNWRZBMZP\nYYWCXLGHLZQVPOB\nFMHPKABCBAAYCFA\nNRGFEWPLKNORSZR\n",
"output": "18\n1 3\n"
},
{
"input": "2 2\nAB\nCD\n",
"output": "4\n1 1\n"
},
{
"input": "14 12\nBBAAABBBAAAB\nBBABAAAAABAA\nAABBABBBABBA\nBABAABAABBBB\nBBBABBBBABAA\nABBAABBAAABA\nABAAAAABBBAB\nBBAABBABBBAA\nBAABABAAABAB\nAAABBBABBABA\nBABBBBAABBBA\nAAAAABABBAAB\nBABBBABBBBBA\nBAAAABAABAAA\n",
"output": "14\n1 12\n"
},
{
"input": "20 18\nNLBILWYVJJLCACSMUA\nAAMAWVGEZDTWUUZNMM\nWWNOTPPFXJSWWSPPRB\nYUJXZSHHNFGKXIXEJN\nLTKNJOJALEQURSYVBI\nSVXHFTUYWTLBXWFDXD\nLQUEBPXELRNAXFIKFT\nZGZEPWGVLVNMQVRMJM\nWTMIPWRNQCWKZACSKQ\nYGUREEGHTVMICOCUHE\nUNIJGNPINIFWCIHGIQ\nIRGJEHFRUJOHIXRSLF\nDQVCPHUSKYEHFGWBPS\nJIIGNJKTRAAPRBOGMQ\nHFNGDLVBUVECUMQDMT\nGEGCSOPRXQAEMDQAYO\nOHSBTADOWBVKZINKXC\nIIPWCAZSNDFVBMTGMI\nOZZTLUOFRYDNTPIAVA\nTFBGPAMJPIWLEZOKXB\n",
"output": "33\n1 3\n"
},
{
"input": "2 14\nAABACBACBCBBCB\nBACCBBBCBAABBC\n",
"output": "4\n1 7\n"
},
{
"input": "16 4\nBAAC\nBACA\nACBC\nABCC\nCCAC\nBBCC\nCCAB\nABCC\nCBCA\nBCBC\nBCBC\nCBBB\nBBAA\nBACA\nABCB\nAABA\n",
"output": "9\n2 4\n"
},
{
"input": "14 13\nBGBALYLHQYMFM\nRLFOZFDFMRFEN\nGDWROOMXUVBOW\nDPXWRDPCEFMRQ\nJOSEGKGMHGHFC\nJHXUBTPOZOYGJ\nFHUUMHWSQRNEP\nVGWYMTMWHWGIL\nVMWDTBDJGEVZI\nLEJSIHTQKYDXY\nOLUOIWECMZVAI\nVDXSGRPMCCJEM\nMYWMDDAQAPBSG\nXQWPFRAPVEOYO\n",
"output": "6\n7 1\n"
},
{
"input": "16 17\nFFOYWWWJRUPVBGSSJ\nVPOMWQMWUWYMMDAPB\nARQUYXZTHVSQZHMVJ\nCJAGELECYEXSHEYTU\nXRSZPRCBQPJQACNWR\nJISALKDCKJUWWHMYH\nGMISALZMLGRRGALJA\nCWPYTQYBXKLBGWKNF\nMJJYWBIHJLARHFNWB\nKEREXXISTPANXGGJG\nLECEJLPAFOZHLRTJM\nHBOWFNSQFRRGEJFMJ\nVEGIRVEXACMJVKFYN\nSCGOPQKUHEDNIPIRE\nLENRPPYJBEVDTOPOY\nFHJOESUHLIJRFPVBK\n",
"output": "8\n4 1\n"
},
{
"input": "2 4\nABAA\nABBB\n",
"output": "2\n1 4\n"
},
{
"input": "6 7\nGYSGYUL\nKGTJUVI\nFNRHOND\nZGZAFYZ\nQVCRZCA\nJCCXKGV\n",
"output": "7\n2 1\n"
},
{
"input": "20 18\nAABCAACCBBCBABBBBB\nBBCBAACCBCAACBBCCB\nACCBABABACBBACBBAB\nACBBBCBAAACAAAAABB\nBCBABABAACCCABBBCC\nBAAAAAACACABBCCCAC\nCBACCBCBACACAAACBC\nCBACAACBCBCAACACCA\nCCCBACCBACACCCBCCB\nCACABBBBBBCCBACCBA\nCCBCACABCBACABBCCB\nAACACCCCCABAABCACC\nCBBACCBBCBCBBCCAAB\nCABBABACCABACAABAB\nBBBABBCBCBACBCCABA\nBCCAACBCBCAAAABACA\nAAABACBBCCCACACBAC\nBABAAAACCBACBACAAA\nAABBABCBBBACAACBAB\nBBABBAABACBAABCCBB\n",
"output": "27\n4 2\n"
},
{
"input": "4 6\nABABAC\nBABABC\nABABAC\nCCCCCA\n",
"output": "4\n2 3\n"
},
{
"input": "4 4\nACAC\nCBCC\nABBC\nCCAC\n",
"output": "5\n1 4\n"
},
{
"input": "1 1\nZ\n",
"output": "1\n1 1\n"
},
{
"input": "5 6\nBBBABB\nAAAABB\nABABAA\nABBBAA\nBABBBA\n",
"output": "4\n1 6\n"
},
{
"input": "4 3\nOKJ\nXTV\nDVW\nHMK\n",
"output": "5\n2 1\n"
},
{
"input": "7 7\nBBAAABB\nAABBBBA\nAABABBA\nAABABAB\nAABBBAA\nBAAAABA\nBBABBBB\n",
"output": "3\n1 7\n"
},
{
"input": "19 19\nACCACBCABACABCACCAA\nBCACAAAACCACCCCBCCB\nCBACBBCBCBCABCABACA\nAACCAABBBCAAABACAAC\nACACCCBBBACACCAAABA\nAACAABCACCBCACCABBA\nAABBCCABACCACABACAA\nACBCCACBACCACABCABC\nAACAABCAACCBBAACBCA\nAAACACBAABCBACCAAAB\nAABACABBABCACAACBCA\nBABAAABCACBABACBBBC\nBAABCAAABCAABBCCAAC\nBCABCCBCCBCBABCBCCA\nBACACBACBCABBCBCABB\nABCACCBBBBCBBCABAAC\nBBBBCCBCBACAACBCBCA\nAAABBBBCACCACCAAACC\nCCCCCBAABAAAACCCBBA\n",
"output": "3\n1 19\n"
},
{
"input": "3 3\nACA\nCCA\nACB\n",
"output": "3\n1 3\n"
},
{
"input": "5 5\nBBCAB\nBCBAC\nCAAAB\nACBBA\nCAACB\n",
"output": "3\n1 5\n"
},
{
"input": "1 12\nABAAADCAAABX\n",
"output": "4\n1 3\n"
},
{
"input": "17 17\nBBAABAABBBBBAABBB\nBBABABBBBABAAABBB\nAAAABAAAABABABBAA\nBBABAAABBABBAAABA\nAAABBBBBAABABBBAB\nAABBBBBABABABABBB\nBAABAAABAAABBAABB\nBBAAAAAABABABBAAB\nAAAAABAABBAAAABAA\nBABAABABABABABBBB\nBAABABBAAABBAAABB\nABBAAABBBBAAAABAB\nBBABAABAAAAAABBBB\nAAABBABBAAAAABBBB\nAABAABBAABBABAABB\nABABAAABBABAAABAB\nBBABABBBAAAAAAABA\n",
"output": "3\n1 17\n"
},
{
"input": "8 9\nBAABABAAB\nBAABAAAAB\nBBBBBAABB\nAAAAAAAAB\nBABBABBAA\nBBABABBBB\nBABABBAAA\nAABAABBBB\n",
"output": "7\n8 1\n"
},
{
"input": "8 8\nTNMIIMOP\nJOAXSHVN\nQYHMVXGM\nQOXAIUMI\nLAAXNKCH\nORWESZUV\nPMIXHLEA\nAENPGVYK\n",
"output": "13\n1 4\n"
},
{
"input": "14 10\nABBAAABBAA\nBBBBBABBAA\nBABABBABAB\nAAABABBAAB\nBBABABBBAB\nBBABBABABB\nAABBBBABAA\nABBBAAAABB\nABBABAABAA\nABABABABBA\nABAABBBAAB\nAAAAAAAAAA\nABABBAABAA\nBABAABABBB\n",
"output": "10\n1 10\n"
},
{
"input": "14 17\nXGFETCAWEBHYYDECE\nCGFEUQEYMLSVHNKJA\nZMGSXZJASBUPTHRFQ\nGQREDKHDBTZPGWHEO\nQGACDHZVBAOGLHHEL\nLKLKVFVDHSRQNEDXC\nVNREYHZDJHPJKHXDO\nKBOMZYHZEUOYUOXSQ\nFNQGOBVDBTMUJPAKU\nXFPGQQXBPELKWSXCJ\nABUKLBPTFOGUJFDEQ\nKXPJEZJQCHTENYSKY\nXXOKEXESEVLQMFDZG\nVPGUBSJLGBWZWAMFZ\n",
"output": "6\n7 1\n"
},
{
"input": "2 2\nML\nWQ\n",
"output": "4\n1 1\n"
},
{
"input": "14 15\nJFLSOQHVDRTCPWZ\nWSROLOOQOCWPJNX\nEEUZVBLQXBFQKNA\nQIGZDIMDXVCHJFJ\nUDJGIZWDBMMMBJR\nEWXAQHPRYBQOYDT\nUDEAPOBVZOXNVMK\nAYEVKFIKNRUVRQC\nNLTLJBXWMUQXAZD\nKOXESBBUYLMIDOI\nZOJWEOJFCYTILHE\nRQDNTBZZXPKNCEN\nSYGFASAQUSMYYRP\nUOYCFYUDACJDTAD\n",
"output": "13\n1 5\n"
},
{
"input": "6 6\nCCABCA\nBCBCBC\nBAAAAA\nCBBCAA\nACBBCA\nCCAABA\n",
"output": "10\n1 6\n"
},
{
"input": "4 8\nCACABCCA\nABCBAACA\nACABBBCC\nAACCBCBB\n",
"output": "8\n1 4\n"
},
{
"input": "16 16\nABBABBABBAABBBAB\nBABABBAABAABBAAA\nBAAABBAABAABBBAA\nAABAAAABAAAABBBA\nBAAAABAABBBABBAA\nAABBABABABAABBBA\nBABBBABAAAAABABB\nBABBBBBBBBABBBAB\nBAAAABBBABAABBBA\nBABBBABBAABABBAA\nBBBBBBAABBBABBBA\nBABAAAABAABAABBB\nAAAAABBAAABABAAA\nBABBABABABAAABAB\nBAAAAAAAABBABAAA\nBAAAAABABBBBAAAA\n",
"output": "15\n1 16\n"
},
{
"input": "6 6\nQLXBOE\nKEEYTR\nZLPMSP\nWOKAHN\nLYXBXU\nSZOEZV\n",
"output": "14\n2 1\n"
},
{
"input": "8 7\nBABABBB\nABABABA\nAABBABA\nABBABAA\nBABAAAB\nAABBBBA\nABBBBAB\nBBAAABA\n",
"output": "5\n1 7\n"
},
{
"input": "18 18\nBBBBBBBABABBBABABA\nBAAABAAABBBABABBBB\nBABBAAABAAABAAABAA\nAABBABBBABBBBBAAAB\nBBBAAAAABBABBAAAAA\nAABBAABABABBBABABA\nBAABBAAAABABAABABB\nBABBABBBAAAABAABBA\nBBBBAABAAABAAABBBA\nABABBAAABBBBBABABA\nABABAABBBBBABBBBBB\nABAAABBABBABAAAABA\nBABAAABABABBBABBBB\nBBBBABBBABBBBBBBBA\nBAAABAABABABBBBAAB\nBABBAABABBABAABBBB\nBAABABAAAABBABBAAA\nBAAABBBAABABBABBAB\n",
"output": "23\n2 6\n"
},
{
"input": "20 20\nABBBAAABABAAAAABBABB\nBABABBAABAABBAAABABB\nBABBBAABAABBABBBBABA\nBAAABBAAABABBABBAAAA\nABBAABAABBBBAAABBBAA\nBAAAAAAAABABBAAAAABB\nAAAAAAABABBBBBAABAAB\nABBBBABAABBAAAAABAAA\nBAAAAABBABAAAAABAAAB\nABABAABABBBABBAABBAA\nBAAABBBAAAABBBBBABAA\nAAABBABABAABBABAABAB\nABBABABABABAAABABABA\nBAABAAAAABBAABBBAAAB\nABAAABBABAABBBABAABA\nBAABBBBBABBBABBBABAB\nBABBABABBBBBBBBABAAA\nABAAABAAABAAABABABAA\nBAABBBBAABBAAAAAABBA\nABAABBABAAABBABABAAA\n",
"output": "23\n1 10\n"
},
{
"input": "16 15\nABBBBAAABABBABB\nABBBAAABBABBBBB\nBABABAABBBABABB\nAAABBBBBABBABBB\nBAABAABAABAABBA\nABBBBAAAAAAAABB\nBAABBBABABAAAAB\nAAAABBAABBAABAA\nABBABABAAABABBB\nAAABBBABAABABAA\nBAABABBAAABBAAA\nAAAAAAABABBBAAA\nBABBAABBABAAAAB\nABABAAABBBBBAAB\nBBABBAABABAABBB\nBAAAABBBABABBBA\n",
"output": "12\n4 3\n"
},
{
"input": "10 10\nABBAABAABB\nABAAAAAABA\nBAABABABAA\nBAAAAAAAAB\nBABABBBAAB\nABBABBBBBA\nAABABAAAAA\nBAAAABAABA\nABABAABBAA\nBBABBABABB\n",
"output": "9\n1 10\n"
},
{
"input": "3 3\nBXP\nUJF\nAQT\n",
"output": "4\n1 1\n"
},
{
"input": "9 10\nXHPCDAAFPZ\nJRZCDTQBYP\nZBTAMDPIFY\nXBKTMXNIWM\nDAIONPEBYF\nAFHBCBDTKB\nKRVEBSUXRM\nWGMEZTWDBX\nNOJUCDZPZY\n",
"output": "10\n3 1\n"
}
] | code_contests | python | 0 | 024816636e966647a2b153b0644927de |
Today Patrick waits for a visit from his friend Spongebob. To prepare for the visit, Patrick needs to buy some goodies in two stores located near his house. There is a d1 meter long road between his house and the first shop and a d2 meter long road between his house and the second shop. Also, there is a road of length d3 directly connecting these two shops to each other. Help Patrick calculate the minimum distance that he needs to walk in order to go to both shops and return to his house.
<image>
Patrick always starts at his house. He should visit both shops moving only along the three existing roads and return back to his house. He doesn't mind visiting the same shop or passing the same road multiple times. The only goal is to minimize the total distance traveled.
Input
The first line of the input contains three integers d1, d2, d3 (1 ≤ d1, d2, d3 ≤ 108) — the lengths of the paths.
* d1 is the length of the path connecting Patrick's house and the first shop;
* d2 is the length of the path connecting Patrick's house and the second shop;
* d3 is the length of the path connecting both shops.
Output
Print the minimum distance that Patrick will have to walk in order to visit both shops and return to his house.
Examples
Input
10 20 30
Output
60
Input
1 1 5
Output
4
Note
The first sample is shown on the picture in the problem statement. One of the optimal routes is: house <image> first shop <image> second shop <image> house.
In the second sample one of the optimal routes is: house <image> first shop <image> house <image> second shop <image> house.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | d=list(map(int,input().split()))
d.sort()
print(min(d[0]*2+d[1]*2,d[0]+d[1]+d[2])) | python | code_algorithm | [
{
"input": "10 20 30\n",
"output": "60\n"
},
{
"input": "1 1 5\n",
"output": "4\n"
},
{
"input": "318476 318476 318476\n",
"output": "955428\n"
},
{
"input": "1 100000000 1\n",
"output": "4\n"
},
{
"input": "12 34 56\n",
"output": "92\n"
},
{
"input": "9889 1221 2442\n",
"output": "7326\n"
},
{
"input": "100500 200600 300700\n",
"output": "601800\n"
},
{
"input": "12059 259855 5874875\n",
"output": "543828\n"
},
{
"input": "2 5 2\n",
"output": "8\n"
},
{
"input": "46981 105809 585858\n",
"output": "305580\n"
},
{
"input": "23985 3353 75633\n",
"output": "54676\n"
},
{
"input": "777 777 777\n",
"output": "2331\n"
},
{
"input": "100000000 100000000 100000000\n",
"output": "300000000\n"
},
{
"input": "100 33 34\n",
"output": "134\n"
},
{
"input": "120 1298 2222\n",
"output": "2836\n"
},
{
"input": "98437 23487 666672\n",
"output": "243848\n"
},
{
"input": "1 293548 5\n",
"output": "12\n"
},
{
"input": "789 101112 131415\n",
"output": "203802\n"
},
{
"input": "27485716 99999999 35182\n",
"output": "55041796\n"
},
{
"input": "1 1000 1\n",
"output": "4\n"
},
{
"input": "2 2 8\n",
"output": "8\n"
}
] | code_contests | python | 0 | 45cc667036dff65b6bce42ed7214c64b |
Heidi the Cow is aghast: cracks in the northern Wall? Zombies gathering outside, forming groups, preparing their assault? This must not happen! Quickly, she fetches her HC2 (Handbook of Crazy Constructions) and looks for the right chapter:
How to build a wall:
1. Take a set of bricks.
2. Select one of the possible wall designs. Computing the number of possible designs is left as an exercise to the reader.
3. Place bricks on top of each other, according to the chosen design.
This seems easy enough. But Heidi is a Coding Cow, not a Constructing Cow. Her mind keeps coming back to point 2b. Despite the imminent danger of a zombie onslaught, she wonders just how many possible walls she could build with up to n bricks.
A wall is a set of wall segments as defined in the easy version. How many different walls can be constructed such that the wall consists of at least 1 and at most n bricks? Two walls are different if there exist a column c and a row r such that one wall has a brick in this spot, and the other does not.
Along with n, you will be given C, the width of the wall (as defined in the easy version). Return the number of different walls modulo 106 + 3.
Input
The first line contains two space-separated integers n and C, 1 ≤ n ≤ 500000, 1 ≤ C ≤ 200000.
Output
Print the number of different walls that Heidi could build, modulo 106 + 3.
Examples
Input
5 1
Output
5
Input
2 2
Output
5
Input
3 2
Output
9
Input
11 5
Output
4367
Input
37 63
Output
230574
Note
The number 106 + 3 is prime.
In the second sample case, the five walls are:
B B
B., .B, BB, B., and .B
In the third sample case, the nine walls are the five as in the second sample case and in addition the following four:
B B
B B B B
B., .B, BB, and BB
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | result=0
mod=10**6 +3
n,C=map(int,input().split()) #recibimos la entrada
#calc n!
def fact(n):
fact=1
for i in range(1,n+1): #1*2*3*...*n = n*(n-1)*(n-2)...*1
fact=(fact*i)%mod #
return fact
def pow(a,b): #Algoritmo de Exponenciacion binaria
exp=1 # Caso base a^1=a
x=a % mod
b=b%(mod-1)
while b > 0:
if b % 2 == 1:# En caso que b sea impar
exp=(exp*x)%mod
# En caso que b sea impar
x=(x*x)%mod
b=b//2
return exp
#cacl (n+C)!/(n!*C!) , usamos el pequenno teorema de Fermat a^{p-1}congruente 1(p) a^{p-2}congruente a^{-1}(p)
# de esta forma en vez de 1/n! y 1/C! usamos n!**p-2 C!**p-2 en este caso p=mod
result=fact(n+C)*pow(fact(n),mod-2)*pow(fact(C),mod-2)-1 # C(n+C,C)= n+C!
print(int(result%mod)) | python | code_algorithm | [
{
"input": "37 63\n",
"output": "230574\n"
},
{
"input": "11 5\n",
"output": "4367\n"
},
{
"input": "3 2\n",
"output": "9\n"
},
{
"input": "2 2\n",
"output": "5\n"
},
{
"input": "5 1\n",
"output": "5\n"
},
{
"input": "350000 180000\n",
"output": "708073\n"
},
{
"input": "400000 140000\n",
"output": "956370\n"
},
{
"input": "350000 140000\n",
"output": "453366\n"
},
{
"input": "450000 160000\n",
"output": "926957\n"
},
{
"input": "400000 180000\n",
"output": "376155\n"
},
{
"input": "450000 200000\n",
"output": "997315\n"
},
{
"input": "450000 180000\n",
"output": "135727\n"
},
{
"input": "500000 140000\n",
"output": "775486\n"
},
{
"input": "500000 160000\n",
"output": "298591\n"
},
{
"input": "350000 160000\n",
"output": "155549\n"
},
{
"input": "450000 140000\n",
"output": "175993\n"
},
{
"input": "400000 160000\n",
"output": "480365\n"
},
{
"input": "1 1\n",
"output": "1\n"
},
{
"input": "400000 200000\n",
"output": "388234\n"
},
{
"input": "500000 180000\n",
"output": "901135\n"
},
{
"input": "500000 200000\n",
"output": "781209\n"
},
{
"input": "350000 200000\n",
"output": "504934\n"
}
] | code_contests | python | 0.1 | 0f0deb8b8f8c9ef4eef4f0448eb07fe3 |
On the way to Rio de Janeiro Ostap kills time playing with a grasshopper he took with him in a special box. Ostap builds a line of length n such that some cells of this line are empty and some contain obstacles. Then, he places his grasshopper to one of the empty cells and a small insect in another empty cell. The grasshopper wants to eat the insect.
Ostap knows that grasshopper is able to jump to any empty cell that is exactly k cells away from the current (to the left or to the right). Note that it doesn't matter whether intermediate cells are empty or not as the grasshopper makes a jump over them. For example, if k = 1 the grasshopper can jump to a neighboring cell only, and if k = 2 the grasshopper can jump over a single cell.
Your goal is to determine whether there is a sequence of jumps such that grasshopper will get from his initial position to the cell with an insect.
Input
The first line of the input contains two integers n and k (2 ≤ n ≤ 100, 1 ≤ k ≤ n - 1) — the number of cells in the line and the length of one grasshopper's jump.
The second line contains a string of length n consisting of characters '.', '#', 'G' and 'T'. Character '.' means that the corresponding cell is empty, character '#' means that the corresponding cell contains an obstacle and grasshopper can't jump there. Character 'G' means that the grasshopper starts at this position and, finally, 'T' means that the target insect is located at this cell. It's guaranteed that characters 'G' and 'T' appear in this line exactly once.
Output
If there exists a sequence of jumps (each jump of length k), such that the grasshopper can get from his initial position to the cell with the insect, print "YES" (without quotes) in the only line of the input. Otherwise, print "NO" (without quotes).
Examples
Input
5 2
#G#T#
Output
YES
Input
6 1
T....G
Output
YES
Input
7 3
T..#..G
Output
NO
Input
6 2
..GT..
Output
NO
Note
In the first sample, the grasshopper can make one jump to the right in order to get from cell 2 to cell 4.
In the second sample, the grasshopper is only able to jump to neighboring cells but the way to the insect is free — he can get there by jumping left 5 times.
In the third sample, the grasshopper can't make a single jump.
In the fourth sample, the grasshopper can only jump to the cells with odd indices, thus he won't be able to reach the insect.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,k=[int(x) for x in input().split()]
s=input()
if s.index('G')>s.index('T'):s=s[::-1]
x=s.index('G')
for i in range(x,n):
x+=k
if x>n-1 or s[x]=='#':print("NO");break
elif s[x]=='T':print("YES");break | python | code_algorithm | [
{
"input": "6 1\nT....G\n",
"output": "YES\n"
},
{
"input": "6 2\n..GT..\n",
"output": "NO\n"
},
{
"input": "7 3\nT..#..G\n",
"output": "NO\n"
},
{
"input": "5 2\n#G#T#\n",
"output": "YES\n"
},
{
"input": "100 1\nG..................................................................................................T\n",
"output": "YES\n"
},
{
"input": "6 1\n.G..T.\n",
"output": "YES\n"
},
{
"input": "5 2\nG..T.\n",
"output": "NO\n"
},
{
"input": "100 33\nG..................................................................................................T\n",
"output": "YES\n"
},
{
"input": "5 1\nG.T##\n",
"output": "YES\n"
},
{
"input": "100 3\nG..................................................................................................T\n",
"output": "YES\n"
},
{
"input": "6 2\nG.T###\n",
"output": "YES\n"
},
{
"input": "10 3\n......G..T\n",
"output": "YES\n"
},
{
"input": "100 9\nT..................................................................................................G\n",
"output": "YES\n"
},
{
"input": "100 3\nG##################################################################################################T\n",
"output": "NO\n"
},
{
"input": "6 2\n..TG..\n",
"output": "NO\n"
},
{
"input": "100 1\nT.#................................................................................................G\n",
"output": "NO\n"
},
{
"input": "100 1\nT..................................................................................................G\n",
"output": "YES\n"
},
{
"input": "100 17\nG####.##.##.#####.####....##.####.#########.##.#..#.###############.T############.#########.#.####.#\n",
"output": "NO\n"
},
{
"input": "100 9\nT...........................................................................................G.......\n",
"output": "NO\n"
},
{
"input": "100 5\nG####.####.####.####.####.####.####.####.####.####.####.####.####.#########.####.####.####.####T####\n",
"output": "NO\n"
},
{
"input": "3 1\nTG#\n",
"output": "YES\n"
},
{
"input": "100 20\n.....G.#.#..................#.........##....#...................#.#..........#...#.#.T..#.......#...\n",
"output": "YES\n"
},
{
"input": "5 2\nT.G.#\n",
"output": "YES\n"
},
{
"input": "100 33\nG.........#........#..........#..............#.................#............................#.#....T\n",
"output": "YES\n"
},
{
"input": "9 1\n...TG#...\n",
"output": "YES\n"
},
{
"input": "6 2\nT#..G.\n",
"output": "YES\n"
},
{
"input": "100 99\nT..................................................................................................G\n",
"output": "YES\n"
},
{
"input": "100 20\n.....G................................................................................T.............\n",
"output": "NO\n"
},
{
"input": "100 99\nT.#...............................#............#..............................##...................G\n",
"output": "YES\n"
},
{
"input": "100 33\nG#....#..#..##.##..#.##.#......#.#.##..##.#.#.##.##....#.#.....####..##...#....##..##..........#...T\n",
"output": "NO\n"
},
{
"input": "100 99\nG##################################################################################################T\n",
"output": "YES\n"
},
{
"input": "100 5\nG####.####.####.####.####.####.####.####.####.####.####.####.####.####.####.####.####.####.####T####\n",
"output": "YES\n"
},
{
"input": "100 3\nG..............#..........#...#..............#.#.....................#......#........#.........#...T\n",
"output": "NO\n"
},
{
"input": "4 1\nTG##\n",
"output": "YES\n"
},
{
"input": "100 33\nG#######.#..##.##.#...#..#.###.#.##.##.#..#.###..####.##.#.##....####...##..####.#..##.##.##.#....#T\n",
"output": "NO\n"
},
{
"input": "100 2\nG............#.....#...........#....#...........##............#............#......................T.\n",
"output": "NO\n"
},
{
"input": "23 1\nT.....................G\n",
"output": "YES\n"
},
{
"input": "100 17\n.########.G##.####.#.######.###############..#.###########.##.#####.##.#####.#T.###..###.########.##\n",
"output": "YES\n"
},
{
"input": "5 2\nT#G##\n",
"output": "YES\n"
},
{
"input": "4 1\n#G.T\n",
"output": "YES\n"
},
{
"input": "100 1\n##########G.........T###############################################################################\n",
"output": "YES\n"
},
{
"input": "100 17\nG################.#################################.################T###############################\n",
"output": "NO\n"
},
{
"input": "100 33\nG..#.#..#..####......#......##...##...#.##........#...#...#.##....###..#...###..##.#.....#......#.T.\n",
"output": "NO\n"
},
{
"input": "100 1\nG.............................................#....................................................T\n",
"output": "NO\n"
},
{
"input": "100 33\nG#..........##...#.#.....................#.#.#.........##..#...........#....#...........##...#..###T\n",
"output": "YES\n"
},
{
"input": "100 17\nG################.###############..###.######.#######.###.#######.##T######################.###.####\n",
"output": "NO\n"
},
{
"input": "6 1\nT...G#\n",
"output": "YES\n"
},
{
"input": "6 2\nG#T###\n",
"output": "YES\n"
},
{
"input": "7 2\nT#...#G\n",
"output": "YES\n"
},
{
"input": "100 33\nG.......#..................#..............................#............................#..........T.\n",
"output": "NO\n"
},
{
"input": "5 4\n.G..T\n",
"output": "NO\n"
},
{
"input": "49 1\nG...............................................T\n",
"output": "YES\n"
},
{
"input": "5 1\nTG###\n",
"output": "YES\n"
},
{
"input": "10 2\n####T..G..\n",
"output": "NO\n"
},
{
"input": "7 1\n##TG###\n",
"output": "YES\n"
},
{
"input": "100 33\nG#####.#.##.###########.##..##..#######..########..###.###..#.####.######.############..####..#####T\n",
"output": "NO\n"
},
{
"input": "100 9\nT................................................................................................G..\n",
"output": "NO\n"
},
{
"input": "100 1\n#.#.#.##..#..##.#....##.##.##.#....####..##.#.##..GT..##...###.#.##.#..#..##.###..#.####..#.#.##..##\n",
"output": "YES\n"
},
{
"input": "48 1\nT..............................................G\n",
"output": "YES\n"
},
{
"input": "7 1\n###GT##\n",
"output": "YES\n"
},
{
"input": "3 1\nGT#\n",
"output": "YES\n"
},
{
"input": "100 9\nT.................................................................................................G.\n",
"output": "NO\n"
},
{
"input": "12 3\nT.#.#.G.....\n",
"output": "YES\n"
},
{
"input": "14 3\n...G.....#..T.\n",
"output": "NO\n"
},
{
"input": "99 1\n...T.............................................................................................G.\n",
"output": "YES\n"
},
{
"input": "100 9\nG..........................................................................................T........\n",
"output": "NO\n"
},
{
"input": "100 1\n##########G....#....T###############################################################################\n",
"output": "NO\n"
},
{
"input": "100 17\n##########G################.################.################.################T#####################\n",
"output": "YES\n"
},
{
"input": "100 1\n#################################################################################################G.T\n",
"output": "YES\n"
},
{
"input": "4 2\nG#.T\n",
"output": "NO\n"
},
{
"input": "100 99\nT..#....#.##...##########.#.#.#.#...####..#.....#..##..#######.######..#.....###..###...#.......#.#G\n",
"output": "YES\n"
},
{
"input": "100 2\n..#####.#.#.......#.#.#...##..####..###..#.#######GT####.#.#...##...##.#..###....##.#.#..#.###....#.\n",
"output": "NO\n"
},
{
"input": "4 1\nGT##\n",
"output": "YES\n"
},
{
"input": "3 2\nG.T\n",
"output": "YES\n"
},
{
"input": "2 1\nTG\n",
"output": "YES\n"
},
{
"input": "100 17\n####.#..#.G######.#########.##..##########.#.################.################T######.####.#########\n",
"output": "YES\n"
},
{
"input": "2 1\nGT\n",
"output": "YES\n"
},
{
"input": "100 1\n#################################################################################################G#T\n",
"output": "NO\n"
},
{
"input": "5 4\n##GT#\n",
"output": "NO\n"
},
{
"input": "100 3\nG..................................#......#......#.......#.#..........#........#......#..........#.T\n",
"output": "NO\n"
}
] | code_contests | python | 0.3 | 452671b47ee966055d5f920b120974b9 |
Can you imagine our life if we removed all zeros from it? For sure we will have many problems.
In this problem we will have a simple example if we removed all zeros from our life, it's the addition operation. Let's assume you are given this equation a + b = c, where a and b are positive integers, and c is the sum of a and b. Now let's remove all zeros from this equation. Will the equation remain correct after removing all zeros?
For example if the equation is 101 + 102 = 203, if we removed all zeros it will be 11 + 12 = 23 which is still a correct equation.
But if the equation is 105 + 106 = 211, if we removed all zeros it will be 15 + 16 = 211 which is not a correct equation.
Input
The input will consist of two lines, the first line will contain the integer a, and the second line will contain the integer b which are in the equation as described above (1 ≤ a, b ≤ 109). There won't be any leading zeros in both. The value of c should be calculated as c = a + b.
Output
The output will be just one line, you should print "YES" if the equation will remain correct after removing all zeros, and print "NO" otherwise.
Examples
Input
101
102
Output
YES
Input
105
106
Output
NO
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a = input ()
b = input ()
c = str (int (a) + int (b))
a = a.replace ("0", "")
b = b.replace ("0", "")
c = c.replace ("0", "")
if int (a) + int (b) == int (c):
print ("YES")
else:
print ("NO") | python | code_algorithm | [
{
"input": "105\n106\n",
"output": "NO\n"
},
{
"input": "101\n102\n",
"output": "YES\n"
},
{
"input": "5\n4\n",
"output": "YES\n"
},
{
"input": "341781108\n784147010\n",
"output": "NO\n"
},
{
"input": "501871728\n725074574\n",
"output": "NO\n"
},
{
"input": "868\n463\n",
"output": "YES\n"
},
{
"input": "10502405\n40403403\n",
"output": "YES\n"
},
{
"input": "84355694\n373629503\n",
"output": "NO\n"
},
{
"input": "693\n970\n",
"output": "NO\n"
},
{
"input": "309\n139\n",
"output": "NO\n"
},
{
"input": "123456\n876543\n",
"output": "YES\n"
},
{
"input": "2081\n7450\n",
"output": "NO\n"
},
{
"input": "1111111\n1119111\n",
"output": "NO\n"
},
{
"input": "540144752\n647307841\n",
"output": "NO\n"
},
{
"input": "100\n1000\n",
"output": "NO\n"
},
{
"input": "999999999\n999999999\n",
"output": "YES\n"
},
{
"input": "459039901\n453033850\n",
"output": "NO\n"
},
{
"input": "960440938\n572334653\n",
"output": "NO\n"
},
{
"input": "347\n908\n",
"output": "NO\n"
},
{
"input": "101\n413\n",
"output": "NO\n"
},
{
"input": "1234567\n9876543\n",
"output": "NO\n"
},
{
"input": "968\n851\n",
"output": "YES\n"
},
{
"input": "40\n17\n",
"output": "NO\n"
},
{
"input": "1\n1\n",
"output": "YES\n"
},
{
"input": "981\n1\n",
"output": "YES\n"
},
{
"input": "815732007\n913882008\n",
"output": "NO\n"
},
{
"input": "544\n397\n",
"output": "YES\n"
},
{
"input": "6\n4\n",
"output": "NO\n"
},
{
"input": "611\n41\n",
"output": "YES\n"
},
{
"input": "737\n289\n",
"output": "NO\n"
},
{
"input": "352\n276\n",
"output": "YES\n"
},
{
"input": "164\n691\n",
"output": "YES\n"
},
{
"input": "885992048\n510468672\n",
"output": "NO\n"
},
{
"input": "168\n571\n",
"output": "YES\n"
},
{
"input": "975305404\n484601256\n",
"output": "NO\n"
},
{
"input": "1\n6\n",
"output": "YES\n"
},
{
"input": "657414510\n768771903\n",
"output": "NO\n"
},
{
"input": "1000000000\n1000000000\n",
"output": "YES\n"
},
{
"input": "822\n280\n",
"output": "NO\n"
},
{
"input": "35\n81\n",
"output": "YES\n"
},
{
"input": "110036\n43\n",
"output": "YES\n"
},
{
"input": "943\n939\n",
"output": "YES\n"
}
] | code_contests | python | 0.9 | dec21533d4cad8a1fda365c14e959da7 |
Have you ever tasted Martian food? Well, you should.
Their signature dish is served on a completely black plate with the radius of R, flat as a pancake.
First, they put a perfectly circular portion of the Golden Honduras on the plate. It has the radius of r and is located as close to the edge of the plate as possible staying entirely within the plate. I. e. Golden Honduras touches the edge of the plate from the inside. It is believed that the proximity of the portion of the Golden Honduras to the edge of a plate demonstrates the neatness and exactness of the Martians.
Then a perfectly round portion of Pink Guadeloupe is put on the plate. The Guadeloupe should not overlap with Honduras, should not go beyond the border of the plate, but should have the maximum radius. I. e. Pink Guadeloupe should touch the edge of the plate from the inside, and touch Golden Honduras from the outside. For it is the size of the Rose Guadeloupe that shows the generosity and the hospitality of the Martians.
Further, the first portion (of the same perfectly round shape) of Green Bull Terrier is put on the plate. It should come in contact with Honduras and Guadeloupe, should not go beyond the border of the plate and should have maximum radius.
Each of the following portions of the Green Bull Terrier must necessarily touch the Golden Honduras, the previous portion of the Green Bull Terrier and touch the edge of a plate, but should not go beyond the border.
To determine whether a stranger is worthy to touch the food, the Martians ask him to find the radius of the k-th portion of the Green Bull Terrier knowing the radii of a plate and a portion of the Golden Honduras. And are you worthy?
Input
The first line contains integer t (1 ≤ t ≤ 104) — amount of testcases.
Each of the following t lines contain three positive integers: the radii of the plate and a portion of the Golden Honduras R and r (1 ≤ r < R ≤ 104) and the number k (1 ≤ k ≤ 104).
In the pretests 1 ≤ k ≤ 2.
Output
Print t lines — the radius of the k-th portion of the Green Bull Terrier for each test. The absolute or relative error of the answer should not exceed 10 - 6.
Examples
Input
2
4 3 1
4 2 2
Output
0.9230769231
0.6666666667
Note
Dish from the first sample looks like this:
<image>
Dish from the second sample looks like this:
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | #!/usr/bin/env python3
def solve(R,r,k):
# Thanks to Numberphile's "Epic circles" video
# Use the formula for radii of circles in Pappus chain
r = r / R
n = k
answer = ((1-r)*r)/(2*((n**2)*((1-r)**2)+r))
# Note that in a Pappus chain the diameter of the circle is 1, so we need to scale up:
answer = 2*R * answer
print("%.10f" % answer)
t = int(input())
for i in range(t):
R,r,k = map(int, input().split())
solve(R,r,k) | python | code_algorithm | [
{
"input": "2\n4 3 1\n4 2 2\n",
"output": "0.9230769231\n0.6666666667\n"
},
{
"input": "1\n4 2 2\n",
"output": "0.6666666667\n"
},
{
"input": "1\n1000 999 1\n",
"output": "0.9999989990\n"
},
{
"input": "1\n7 2 1\n",
"output": "1.7948717949\n"
},
{
"input": "1\n1000 1 1\n",
"output": "0.9999989990\n"
},
{
"input": "1\n2 1 1\n",
"output": "0.6666666667\n"
},
{
"input": "1\n1000 1 1000\n",
"output": "0.0000010010\n"
},
{
"input": "1\n8 7 2\n",
"output": "0.9333333333\n"
},
{
"input": "1\n1000 998 1000\n",
"output": "0.3993597439\n"
},
{
"input": "1\n1000 500 123\n",
"output": "0.0660894852\n"
},
{
"input": "1\n1000 1 2\n",
"output": "0.2501875781\n"
},
{
"input": "1\n1000 999 2\n",
"output": "0.9999959960\n"
}
] | code_contests | python | 0 | 4e73c84b4ed43f4931fd026d34418dd6 |
The main city magazine offers its readers an opportunity to publish their ads. The format of the ad should be like this:
There are space-separated non-empty words of lowercase and uppercase Latin letters.
There are hyphen characters '-' in some words, their positions set word wrapping points. Word can include more than one hyphen.
It is guaranteed that there are no adjacent spaces and no adjacent hyphens. No hyphen is adjacent to space. There are no spaces and no hyphens before the first word and after the last word.
When the word is wrapped, the part of the word before hyphen and the hyphen itself stay on current line and the next part of the word is put on the next line. You can also put line break between two words, in that case the space stays on current line. Check notes for better understanding.
The ad can occupy no more that k lines and should have minimal width. The width of the ad is the maximal length of string (letters, spaces and hyphens are counted) in it.
You should write a program that will find minimal width of the ad.
Input
The first line contains number k (1 ≤ k ≤ 105).
The second line contains the text of the ad — non-empty space-separated words of lowercase and uppercase Latin letters and hyphens. Total length of the ad don't exceed 106 characters.
Output
Output minimal width of the ad.
Examples
Input
4
garage for sa-le
Output
7
Input
4
Edu-ca-tion-al Ro-unds are so fun
Output
10
Note
Here all spaces are replaced with dots.
In the first example one of possible results after all word wraps looks like this:
garage.
for.
sa-
le
The second example:
Edu-ca-
tion-al.
Ro-unds.
are.so.fun
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def f(r):
prev, ofs = -1, -1
s = list()
while True:
try:
ofs = r.index(' ', ofs + 1)
except ValueError:
s.append(len(r) - 1 - prev)
return s
s.append(ofs - prev)
prev = ofs
n = int(input())
s = f(input().replace('-', ' '))
def can(w):
cnt, cur = 0, 0
for l in s:
if l > w:
return False
ln = cur + l <= w
cur = cur * ln + l
cnt += not ln
return cnt < n
def bsearch(lo, hi):
while lo < hi:
mid = (lo + hi) // 2
if can(mid):
hi = mid
else:
lo = mid + 1
return lo
print(bsearch(0, sum(s)))
| python | code_algorithm | [
{
"input": "4\nEdu-ca-tion-al Ro-unds are so fun\n",
"output": "10\n"
},
{
"input": "4\ngarage for sa-le\n",
"output": "7\n"
},
{
"input": "4\nasd asd asd asdf\n",
"output": "4\n"
},
{
"input": "1\nrHPBSGKzxoSLerxkDVxJG PfUqVrdSdOgJBySsRHYryfLKOvIcU\n",
"output": "51\n"
},
{
"input": "1\nqUOYCytbKgoGRgaqhjrohVRxKTKjjOUPPnEjiXJWlvpCyqiRzbnpyNqDylWverSTrcgZpEoDKhJCrOOvsuXHzkPtbXeKCKMwUTVk\n",
"output": "100\n"
},
{
"input": "2\nZeqxDLfPrSzHmZMjwSIoGeEdkWWmyvMqYkaXDzOeoFYRwFGamjYbjKYCIyMgjYoxhKnAQHmGAhkwIoySySumVOYmMDBYXDYkmwErqCrjZWkSisPtNczKRofaLOaJhgUbVOtZqjoJYpCILTmGkVpzCiYETFdgnTbTIVCqAoCZqRhJvWrBZjaMqicyLwZNRMfOFxjxDfNatDFmpmOyOQyGdiTvnprfkWGiaFdrwFVYKOrviRXdhYTdIfEjfzhb HrReddDwSntvOGtnNQFjoOnNDdAejrmNXxDmUdWTKTynngKTnHVSOiZZhggAbXaksqKyxuhhjisYDfzPLtTcKBZJCcuGLjhdZcgbrYQtqPnLoMmCKgusOmkLbBKGnKAEvgeLVmzwaYjvcyCZfngSJBlZwDimHsCctSkAhgqakEvXembgLVLbPfcQsmgxTCgCvSNliSyroTYpRmJGCwQlfcKXoptvkrYijULaUKWeVoaFTBFQvinGXGRj\n",
"output": "253\n"
},
{
"input": "10\nTQEKPQiFXCqY iugCuECYdemF RqdrrpurDgeYK-fLJIgvtgWkPHma-kqoGdxPXvloehNNire JShAkvoJxjDMEoHiOp nHgyCAQMfiQSz\n",
"output": "19\n"
},
{
"input": "6\na aa-aaa-aa a-aaa-a\n",
"output": "5\n"
},
{
"input": "2\nWDJDSbGZbGLcDB-GuDJxmjHEeruCdJNdr wnEbYVxUZbgfjEHlHx\n",
"output": "34\n"
},
{
"input": "1\nQGVsfZevMD\n",
"output": "10\n"
},
{
"input": "10\nIBgDZeAHSUFhJxcZkQKqaTZT gqErHjXUahQpfDTcZZW nhLsPIrfflZWnwiQEWpt dcTGNMjzkuWNIVXrshBowdQ ugLvpovZZVWryM\n",
"output": "25\n"
},
{
"input": "10\nb\n",
"output": "1\n"
},
{
"input": "10\nlELWTeKqHCohtEOB PLhjMMwfpFlcnfft nWGsnztStldkrbGkJZz EtSrgwffzJSspzWpoMXGK-jmbVygQC BoIwaGSYKRsgmxBVwkoa\n",
"output": "22\n"
},
{
"input": "100000\nBGRHXGrqgjMxCBCdQTCpQyHNMkraTRxhyZBztkxXNFEKnCNjHWeCWmmrRjiczJAdfQqdQfnuupPqzRhEKnpuTCsVPNVTIMiuiQUJ\n",
"output": "100\n"
},
{
"input": "2\nWjrWBWqKIeSndDHeiVmfChQNsoUiRQHVplnIWkwBtxAJhOdTigAAzKtbNEqcgvbWHOopfCNgWHfwXyzSCfNqGMLnmlIdKQonLsmGSJlPBcYfHNJJDGlKNnOGtrWUhaTWuilHWMUlFEzbJYbeAWvgnSOOOPLxX-eJEKRsKqSnMjrPbFDprCqgbTfwAnPjFapVKiTjCcWEzhahwPRHScfcLnUixnxckQJzuHzshyBFKPwVGzHeJWniiRKynDFQdaazmTZtDGnFVTmTUZCRCpUHFmUHAVtEdweCImRztqrkQInyCsnMnYBbjjAdKZjXzyPGS TUZjnPyjnjyRCxfKkvpNicAzGqKQgiRreJIMVZPuKyFptrqhgIeWwpZFYetHqvZKUIscYuQttIRNuklmgqRYhbCWPgXpEygxYWMggVbQbiWNNBFMxRoPIRxcBLhayOizbixIRgaXczSibmlTnnYsnlltfDDwPolEIsjPilMiQQjUGeEyAWES\n",
"output": "322\n"
},
{
"input": "100000\nBvbikpOjCTXWr-zqGzpEGswptPksN IsJVeilKfqoiicTMcmZeduDs KtZKEFZQztKq ynKDcPxbVfOKrjxAfQvKIIR HlsgVUeeGvfSc\n",
"output": "25\n"
},
{
"input": "1\nj\n",
"output": "1\n"
},
{
"input": "4\na-aa\n",
"output": "2\n"
}
] | code_contests | python | 0 | e490c21f104e68747ad4b16b37183829 |
Ann and Borya have n piles with candies and n is even number. There are ai candies in pile with number i.
Ann likes numbers which are square of some integer and Borya doesn't like numbers which are square of any integer. During one move guys can select some pile with candies and add one candy to it (this candy is new and doesn't belong to any other pile) or remove one candy (if there is at least one candy in this pile).
Find out minimal number of moves that is required to make exactly n / 2 piles contain number of candies that is a square of some integer and exactly n / 2 piles contain number of candies that is not a square of any integer.
Input
First line contains one even integer n (2 ≤ n ≤ 200 000) — number of piles with candies.
Second line contains sequence of integers a1, a2, ..., an (0 ≤ ai ≤ 109) — amounts of candies in each pile.
Output
Output minimal number of steps required to make exactly n / 2 piles contain number of candies that is a square of some integer and exactly n / 2 piles contain number of candies that is not a square of any integer. If condition is already satisfied output 0.
Examples
Input
4
12 14 30 4
Output
2
Input
6
0 0 0 0 0 0
Output
6
Input
6
120 110 23 34 25 45
Output
3
Input
10
121 56 78 81 45 100 1 0 54 78
Output
0
Note
In first example you can satisfy condition in two moves. During each move you should add one candy to second pile. After it size of second pile becomes 16. After that Borya and Ann will have two piles with number of candies which is a square of integer (second and fourth pile) and two piles with number of candies which is not a square of any integer (first and third pile).
In second example you should add two candies to any three piles.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n=int(input())
p=[]
m=list(map(int,input().split()))
from math import floor,ceil
for i in m:
if i**0.5%1==0:
p.append(0)
else:
p.append(min(i-floor(i**0.5)**2,ceil(i**0.5)**2-i))
a=p.count(0)
am=m.count(0)
if n//2<=a:
x=a-n//2
dif=a-am
if dif >= x:
print(x)
else:
print(dif+(x-dif)*2)
else:
p.sort()
k=a-n//2
x=a
ans=0
for i in range(a,n//2):
ans+=p[i]
print(ans) | python | code_algorithm | [
{
"input": "6\n0 0 0 0 0 0\n",
"output": "6\n"
},
{
"input": "6\n120 110 23 34 25 45\n",
"output": "3\n"
},
{
"input": "10\n121 56 78 81 45 100 1 0 54 78\n",
"output": "0\n"
},
{
"input": "4\n12 14 30 4\n",
"output": "2\n"
},
{
"input": "2\n2 0\n",
"output": "0\n"
},
{
"input": "2\n0 2\n",
"output": "0\n"
},
{
"input": "2\n0 0\n",
"output": "2\n"
},
{
"input": "10\n0 675178538 310440616 608075179 0 0 0 0 0 0\n",
"output": "4\n"
},
{
"input": "2\n31622 31622\n",
"output": "62\n"
},
{
"input": "20\n4 595258838 0 305922562 0 471450344 1 1 29794053 307197649 0 32960227 1 0 0 1 1 0 0 1\n",
"output": "4\n"
},
{
"input": "100\n444272562 25 25 0 49 73291074 64 100 638092144 756033694 0 700405846 16 25 25 100 36 25 269573395 288578186 366853675 36 81 49 4 0 25 49 9 64 0 4 36 36 49 0 64 64 532899768 1 64 9 549673690 25 64 4 817183855 25 146555318 36 495564252 100 49 9 36 100 49 100 4 100 9 64 9 432227412 756728309 25 0 332072516 100 64 0 92286436 49 0 81 49 0 49 0 100 409473792 25 814343057 81 1 16 0 16 886097466 64 492116229 81 270298243 64 81 100 0 49 16 16\n",
"output": "28\n"
},
{
"input": "2\n0 1\n",
"output": "1\n"
},
{
"input": "2\n0 1000000000\n",
"output": "0\n"
},
{
"input": "2\n1 0\n",
"output": "1\n"
},
{
"input": "10\n49727640 89440577 0 957792200 0 0 0 0 623726477 0\n",
"output": "2\n"
},
{
"input": "2\n31622 31623\n",
"output": "61\n"
}
] | code_contests | python | 0 | b92ae049a71ed7424acdc17e994b4cdd |
Ivar the Boneless is a great leader. He is trying to capture Kattegat from Lagertha. The war has begun and wave after wave Ivar's warriors are falling in battle.
Ivar has n warriors, he places them on a straight line in front of the main gate, in a way that the i-th warrior stands right after (i-1)-th warrior. The first warrior leads the attack.
Each attacker can take up to a_i arrows before he falls to the ground, where a_i is the i-th warrior's strength.
Lagertha orders her warriors to shoot k_i arrows during the i-th minute, the arrows one by one hit the first still standing warrior. After all Ivar's warriors fall and all the currently flying arrows fly by, Thor smashes his hammer and all Ivar's warriors get their previous strengths back and stand up to fight again. In other words, if all warriors die in minute t, they will all be standing to fight at the end of minute t.
The battle will last for q minutes, after each minute you should tell Ivar what is the number of his standing warriors.
Input
The first line contains two integers n and q (1 ≤ n, q ≤ 200 000) — the number of warriors and the number of minutes in the battle.
The second line contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 10^9) that represent the warriors' strengths.
The third line contains q integers k_1, k_2, …, k_q (1 ≤ k_i ≤ 10^{14}), the i-th of them represents Lagertha's order at the i-th minute: k_i arrows will attack the warriors.
Output
Output q lines, the i-th of them is the number of standing warriors after the i-th minute.
Examples
Input
5 5
1 2 1 2 1
3 10 1 1 1
Output
3
5
4
4
3
Input
4 4
1 2 3 4
9 1 10 6
Output
1
4
4
1
Note
In the first example:
* after the 1-st minute, the 1-st and 2-nd warriors die.
* after the 2-nd minute all warriors die (and all arrows left over are wasted), then they will be revived thus answer is 5 — all warriors are alive.
* after the 3-rd minute, the 1-st warrior dies.
* after the 4-th minute, the 2-nd warrior takes a hit and his strength decreases by 1.
* after the 5-th minute, the 2-nd warrior dies.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import bisect
n,q=map(int,input().split())
a=list(map(int,input().split()))
s=[0,]
for i in a:
s.append(s[-1]+i)
k=list(map(int,input().split()))
tb=0
for i in range(q):
tb+=k[i]
if tb>=s[-1]:
tb=0
print(n)
else:
ans=bisect.bisect_right(s,tb)
print(n-ans+1)
| python | code_algorithm | [
{
"input": "4 4\n1 2 3 4\n9 1 10 6\n",
"output": "1\n4\n4\n1\n"
},
{
"input": "5 5\n1 2 1 2 1\n3 10 1 1 1\n",
"output": "3\n5\n4\n4\n3\n"
},
{
"input": "10 3\n1 1 1 1 1 1 1 1 1 1\n10 10 5\n",
"output": "10\n10\n5\n"
},
{
"input": "1 1\n56563128\n897699770\n",
"output": "1\n"
},
{
"input": "100 55\n1 2 4 4 3 5 5 2 3 4 2 1 1 2 3 5 1 5 4 2 5 4 4 3 3 5 3 4 4 5 5 2 3 3 4 4 3 4 5 5 5 5 3 5 1 2 4 3 4 5 3 3 2 1 4 5 3 4 4 1 5 1 5 2 2 1 4 5 3 3 1 4 2 5 4 5 3 2 5 5 2 3 2 3 2 2 3 4 4 4 1 4 2 4 5 3 1 3 3 1\n5 2 1 4 3 4 3 1 4 4 1 2 3 2 1 5 5 4 5 4 2 5 2 1 5 1 4 4 3 5 4 5 1 4 4 1 5 3 1 5 2 4 1 3 2 5 4 5 4 3 4 2 2 4 3\n",
"output": "98\n97\n97\n96\n95\n94\n94\n94\n92\n91\n91\n90\n87\n86\n86\n85\n83\n82\n80\n80\n79\n78\n77\n77\n75\n75\n74\n73\n72\n71\n70\n69\n69\n67\n66\n66\n65\n64\n63\n62\n62\n61\n61\n60\n60\n59\n58\n57\n54\n54\n52\n52\n51\n51\n50\n"
}
] | code_contests | python | 0.1 | cce84143a4d595e0f70cc338799a40ec |
Allen is hosting a formal dinner party. 2n people come to the event in n pairs (couples). After a night of fun, Allen wants to line everyone up for a final picture. The 2n people line up, but Allen doesn't like the ordering. Allen prefers if each pair occupies adjacent positions in the line, as this makes the picture more aesthetic.
Help Allen find the minimum number of swaps of adjacent positions he must perform to make it so that each couple occupies adjacent positions in the line.
Input
The first line contains a single integer n (1 ≤ n ≤ 100), the number of pairs of people.
The second line contains 2n integers a_1, a_2, ..., a_{2n}. For each i with 1 ≤ i ≤ n, i appears exactly twice. If a_j = a_k = i, that means that the j-th and k-th people in the line form a couple.
Output
Output a single integer, representing the minimum number of adjacent swaps needed to line the people up so that each pair occupies adjacent positions.
Examples
Input
4
1 1 2 3 3 2 4 4
Output
2
Input
3
1 1 2 2 3 3
Output
0
Input
3
3 1 2 3 1 2
Output
3
Note
In the first sample case, we can transform 1 1 2 3 3 2 4 4 → 1 1 2 3 2 3 4 4 → 1 1 2 2 3 3 4 4 in two steps. Note that the sequence 1 1 2 3 3 2 4 4 → 1 1 3 2 3 2 4 4 → 1 1 3 3 2 2 4 4 also works in the same number of steps.
The second sample case already satisfies the constraints; therefore we need 0 swaps.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | input()
a=list(map(int,input().split()))
cnt=0
while a:
i=a.index(a.pop(0))
cnt+=i
a.pop(i)
print(cnt) | python | code_algorithm | [
{
"input": "4\n1 1 2 3 3 2 4 4\n",
"output": "2\n"
},
{
"input": "3\n1 1 2 2 3 3\n",
"output": "0\n"
},
{
"input": "3\n3 1 2 3 1 2\n",
"output": "3\n"
},
{
"input": "1\n1 1\n",
"output": "0\n"
},
{
"input": "19\n15 19 18 8 12 2 11 7 5 2 1 1 9 9 3 3 16 6 15 17 13 18 4 14 5 8 10 12 6 11 17 13 14 16 19 7 4 10\n",
"output": "181\n"
},
{
"input": "81\n48 22 31 24 73 77 79 75 37 78 43 56 20 33 70 34 6 50 51 21 39 29 20 11 73 53 39 61 28 17 55 52 28 57 52 74 35 13 55 2 57 9 46 81 60 47 21 68 1 53 31 64 42 9 79 80 69 30 32 24 15 2 69 10 22 3 71 19 67 66 17 50 62 36 32 65 58 18 25 59 38 10 14 51 23 16 29 81 45 40 18 54 47 12 45 74 41 34 75 44 19 77 71 67 7 16 35 49 15 3 38 4 7 25 76 66 5 65 27 6 1 72 37 42 26 60 12 64 44 41 80 13 49 68 76 48 11 78 40 61 30 43 62 58 5 4 33 26 54 27 36 72 63 63 59 70 23 8 56 8 46 14\n",
"output": "3186\n"
},
{
"input": "38\n26 28 23 34 33 14 38 15 35 36 30 1 19 17 18 28 22 15 9 27 11 16 17 32 7 21 6 8 32 26 33 23 18 4 2 25 29 3 35 8 38 37 31 37 12 25 3 27 16 24 5 20 12 13 29 11 30 22 9 19 2 24 7 10 34 4 36 21 14 31 13 6 20 10 5 1\n",
"output": "744\n"
},
{
"input": "4\n3 4 2 4 1 2 1 3\n",
"output": "8\n"
},
{
"input": "8\n7 6 2 1 4 3 3 7 2 6 5 1 8 5 8 4\n",
"output": "27\n"
},
{
"input": "2\n2 1 1 2\n",
"output": "2\n"
},
{
"input": "35\n6 32 4 19 9 34 20 29 22 26 19 14 33 11 17 31 30 13 7 12 8 16 5 5 21 15 18 28 34 3 2 10 23 24 35 6 32 4 25 9 1 11 24 20 26 25 2 13 22 17 31 30 33 7 12 8 16 27 27 21 15 18 28 1 3 14 10 23 29 35\n",
"output": "673\n"
},
{
"input": "24\n21 21 22 5 8 5 15 11 13 16 17 9 3 18 15 1 12 12 7 2 22 19 20 19 23 14 8 24 4 23 16 17 9 10 1 6 4 2 7 3 18 11 24 10 13 6 20 14\n",
"output": "259\n"
},
{
"input": "3\n1 2 3 3 1 2\n",
"output": "5\n"
},
{
"input": "86\n33 6 22 8 54 43 57 85 70 41 20 17 35 12 66 25 45 78 67 55 50 19 31 75 77 29 58 78 34 15 40 48 14 82 6 37 44 53 62 23 56 22 34 18 71 83 21 80 47 38 3 42 60 9 73 49 84 7 76 30 5 4 11 28 69 16 26 10 59 48 64 46 32 68 24 63 79 36 13 1 27 61 39 74 2 51 51 2 74 39 61 27 1 13 36 79 86 24 68 32 46 64 63 59 10 26 16 69 28 11 4 5 30 76 7 84 49 73 9 60 42 3 38 47 80 21 83 72 18 52 65 56 23 62 53 44 37 81 82 14 86 40 15 52 72 58 29 77 85 31 19 50 55 67 71 45 25 66 12 35 17 20 41 70 75 57 43 54 8 65 81 33\n",
"output": "6194\n"
},
{
"input": "75\n28 28 42 3 39 39 73 73 75 75 30 30 21 9 57 41 26 70 15 15 65 65 24 24 4 4 62 62 17 17 29 29 37 37 18 18 1 1 8 8 63 63 49 49 5 5 59 59 19 19 34 34 48 48 10 10 14 42 22 22 38 38 50 50 60 60 64 35 47 31 72 72 41 52 46 46 20 20 21 9 7 7 36 36 2 2 6 6 70 26 69 69 16 16 61 61 66 66 33 33 44 44 11 11 23 23 40 40 12 12 64 35 56 56 27 27 53 53 3 14 43 43 31 47 68 68 13 13 74 74 67 67 71 71 45 45 57 52 32 32 25 25 58 58 55 55 51 51 54 54\n",
"output": "870\n"
},
{
"input": "84\n10 29 12 22 55 3 81 33 64 78 46 44 69 41 34 71 24 12 22 54 63 9 65 40 36 81 32 37 83 50 28 84 53 25 72 77 41 35 50 8 29 78 72 53 21 63 16 1 79 20 66 23 38 18 44 5 27 77 32 52 42 60 67 62 64 52 14 80 4 19 15 45 40 47 42 46 68 18 70 8 3 36 65 38 73 43 59 20 66 6 51 10 58 55 51 13 4 5 43 82 71 21 9 33 47 11 61 30 76 27 24 48 75 15 48 75 2 31 83 67 59 74 56 11 39 13 45 76 26 30 39 17 61 57 68 7 70 62 49 57 49 84 31 26 56 54 74 16 60 1 80 35 82 28 79 73 14 69 6 19 25 34 23 2 58 37 7 17\n",
"output": "3279\n"
},
{
"input": "2\n1 2 1 2\n",
"output": "1\n"
},
{
"input": "8\n3 1 5 2 1 6 3 5 6 2 4 8 8 4 7 7\n",
"output": "13\n"
}
] | code_contests | python | 0 | cedfab60d30656c830b86b9675070267 |
The king's birthday dinner was attended by k guests. The dinner was quite a success: every person has eaten several dishes (though the number of dishes was the same for every person) and every dish was served alongside with a new set of kitchen utensils.
All types of utensils in the kingdom are numbered from 1 to 100. It is known that every set of utensils is the same and consist of different types of utensils, although every particular type may appear in the set at most once. For example, a valid set of utensils can be composed of one fork, one spoon and one knife.
After the dinner was over and the guests were dismissed, the king wondered what minimum possible number of utensils could be stolen. Unfortunately, the king has forgotten how many dishes have been served for every guest but he knows the list of all the utensils left after the dinner. Your task is to find the minimum possible number of stolen utensils.
Input
The first line contains two integer numbers n and k (1 ≤ n ≤ 100, 1 ≤ k ≤ 100) — the number of kitchen utensils remaining after the dinner and the number of guests correspondingly.
The next line contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 100) — the types of the utensils remaining. Equal values stand for identical utensils while different values stand for different utensils.
Output
Output a single value — the minimum number of utensils that could be stolen by the guests.
Examples
Input
5 2
1 2 2 1 3
Output
1
Input
10 3
1 3 3 1 3 5 5 5 5 100
Output
14
Note
In the first example it is clear that at least one utensil of type 3 has been stolen, since there are two guests and only one such utensil. But it is also possible that every person received only one dish and there were only six utensils in total, when every person got a set (1, 2, 3) of utensils. Therefore, the answer is 1.
One can show that in the second example at least 2 dishes should have been served for every guest, so the number of utensils should be at least 24: every set contains 4 utensils and every one of the 3 guests gets two such sets. Therefore, at least 14 objects have been stolen. Please note that utensils of some types (for example, of types 2 and 4 in this example) may be not present in the set served for dishes.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import math
n, k = map(int, input().split())
a = [int(t) for t in input().split()]
d = {}
for i in a:
if d.get(i) is None:
d[i] = 0
d[i] += 1
print(math.ceil(max(d.values()) / k) * len(d.keys()) * k - n) | python | code_algorithm | [
{
"input": "10 3\n1 3 3 1 3 5 5 5 5 100\n",
"output": "14\n"
},
{
"input": "5 2\n1 2 2 1 3\n",
"output": "1\n"
},
{
"input": "100 1\n17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17 17\n",
"output": "0\n"
},
{
"input": "10 4\n5 5 5 5 5 5 5 5 1 1\n",
"output": "6\n"
},
{
"input": "100 7\n9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9\n",
"output": "5\n"
},
{
"input": "10 5\n45 58 20 18 68 1 87 15 69 73\n",
"output": "40\n"
},
{
"input": "100 100\n55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55\n",
"output": "0\n"
},
{
"input": "100 1\n53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 53 48\n",
"output": "98\n"
},
{
"input": "100 10\n75 75 75 75 30 53 75 31 75 62 44 44 69 76 57 31 75 83 75 13 56 59 30 75 27 56 75 75 47 31 79 75 30 20 31 8 75 75 30 20 75 31 31 75 75 4 52 75 44 20 31 66 55 75 75 75 31 75 33 42 31 82 14 31 75 75 75 75 31 80 31 30 75 88 31 75 69 75 31 75 30 75 44 17 75 75 35 75 75 75 75 75 56 44 75 75 44 75 20 31\n",
"output": "1400\n"
},
{
"input": "100 10\n49 98 34 45 45 34 49 34 34 34 49 34 34 34 34 34 34 34 45 34 34 34 34 34 49 34 34 34 45 49 45 34 45 34 49 98 34 34 49 45 34 34 34 66 34 98 34 34 34 34 98 34 34 45 34 34 34 66 98 34 34 34 34 45 34 45 34 34 34 49 34 34 34 34 34 49 98 34 34 34 45 34 34 34 98 66 98 98 66 34 49 49 34 34 34 34 34 66 34 34\n",
"output": "250\n"
},
{
"input": "100 100\n97 64 64 35 35 97 39 83 26 97 92 97 83 11 83 97 97 64 23 97 97 11 26 11 11 39 64 11 23 39 64 26 26 97 39 39 39 64 83 26 83 97 64 11 64 64 64 83 64 92 64 26 83 26 27 64 11 83 92 92 23 11 11 97 92 64 97 64 97 83 64 27 83 23 11 26 11 92 83 64 83 11 11 11 97 83 97 26 26 97 23 23 39 64 64 64 97 27 27 92\n",
"output": "900\n"
},
{
"input": "1 1\n14\n",
"output": "0\n"
},
{
"input": "10 5\n63 63 63 63 63 63 63 63 63 63\n",
"output": "0\n"
},
{
"input": "100 100\n40 45 45 12 45 33 16 45 18 45 36 45 45 45 45 12 45 45 1 61 45 45 78 45 45 45 16 61 12 45 36 45 45 61 45 33 33 16 45 45 45 33 45 45 45 45 45 45 45 45 45 45 33 12 45 45 61 12 45 78 33 61 45 45 40 78 18 45 45 45 78 45 61 45 45 45 45 33 16 45 33 45 40 45 78 45 33 45 45 33 45 61 45 45 45 45 78 45 45 33\n",
"output": "900\n"
},
{
"input": "100 100\n50 81 93 15 34 57 92 24 54 66 77 66 22 88 76 37 47 34 39 16 93 66 34 24 97 67 44 57 79 77 32 67 17 74 42 55 45 77 77 34 66 59 93 13 92 77 44 47 24 90 70 77 17 47 24 24 34 67 67 57 75 67 74 48 51 38 66 84 34 81 61 1 67 69 24 66 18 81 58 33 74 34 74 93 17 91 44 44 34 57 49 43 27 69 44 55 53 57 10 9\n",
"output": "4900\n"
},
{
"input": "100 2\n41 87 41 41 52 41 41 86 41 15 41 15 41 15 41 15 41 41 31 15 41 41 15 87 87 41 15 87 41 41 41 15 41 41 34 41 41 64 41 87 41 41 15 41 87 15 41 41 87 15 41 15 41 41 41 41 15 46 41 46 32 41 87 41 41 41 41 4 41 87 41 94 41 15 15 41 15 87 41 41 9 41 70 15 94 76 41 41 41 41 41 41 41 41 87 87 87 41 41 41\n",
"output": "740\n"
},
{
"input": "10 6\n91 51 91 51 51 91 51 91 91 91\n",
"output": "2\n"
},
{
"input": "20 1\n57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57 57\n",
"output": "0\n"
},
{
"input": "100 1\n84 85 2 96 83 57 9 95 34 14 21 6 10 26 32 1 29 77 39 91 42 87 74 65 73 58 66 23 37 13 100 90 30 46 92 4 80 61 47 53 44 75 76 3 7 79 93 24 27 97 49 11 67 70 38 98 59 69 82 81 16 12 51 48 45 17 50 88 43 94 40 60 62 25 68 28 54 20 63 72 18 41 52 5 56 15 71 78 64 19 89 8 36 31 33 99 22 55 86 35\n",
"output": "0\n"
},
{
"input": "100 100\n39 26 10 37 66 38 33 35 96 30 58 46 18 16 95 9 34 81 63 44 79 98 70 1 68 42 100 76 94 41 74 52 60 97 13 17 21 43 32 29 71 15 55 31 40 82 89 47 27 85 57 5 61 88 41 65 62 83 72 4 12 59 67 78 48 3 73 20 7 99 53 36 2 77 50 51 23 69 84 91 11 6 8 86 87 19 45 64 90 93 28 54 49 56 80 22 14 24 92 25\n",
"output": "9800\n"
},
{
"input": "10 2\n46 81 64 81 46 64 46 81 81 81\n",
"output": "8\n"
},
{
"input": "100 100\n57 4 57 4 76 57 4 57 4 57 57 76 76 4 67 76 57 76 76 64 76 57 76 4 57 57 76 57 4 76 57 76 57 76 57 57 57 57 4 57 4 57 4 57 4 11 57 57 4 76 57 57 76 4 57 4 76 57 11 57 57 76 4 57 4 4 76 76 57 59 57 95 4 4 76 76 57 4 57 4 76 76 4 76 57 99 55 57 4 57 57 57 57 57 57 57 57 76 57 4\n",
"output": "900\n"
},
{
"input": "100 1\n25 96 40 40 42 40 40 96 96 19 40 40 75 40 18 40 4 40 19 19 19 40 40 25 40 19 94 40 25 40 40 18 1 40 94 40 75 40 40 40 40 40 94 40 4 4 4 40 75 94 40 40 40 40 42 17 18 40 40 4 40 40 40 25 96 40 40 73 73 96 4 40 40 40 40 40 4 40 41 40 94 40 73 40 40 19 25 19 71 40 40 40 94 40 99 75 42 17 40 71\n",
"output": "650\n"
}
] | code_contests | python | 0.3 | 6525f66e507e4da2f77b308ad56e21b8 |
From "ftying rats" to urban saniwation workers - can synthetic biology tronsform how we think of pigeons?
The upiquitous pigeon has long been viewed as vermin - spleading disease, scavenging through trush, and defecating in populous urban spases. Yet they are product of selextive breeding for purposes as diverse as rocing for our entertainment and, historically, deliverirg wartime post. Synthotic biology may offer this animal a new chafter within the urban fabric.
Piteon d'Or recognihes how these birds ripresent a potentially userul interface for urdan biotechnologies. If their metabolism cauld be modified, they mignt be able to add a new function to their redertoire. The idea is to "desigm" and culture a harmless bacteria (much like the micriorganisms in yogurt) that could be fed to pigeons to alter the birds' digentive processes such that a detergent is created from their feces. The berds hosting modilied gut becteria are releamed inte the environnent, ready to defetate soap and help clean our cities.
Input
The first line of input data contains a single integer n (5 ≤ n ≤ 10).
The second line of input data contains n space-separated integers a_i (1 ≤ a_i ≤ 32).
Output
Output a single integer.
Example
Input
5
1 2 3 4 5
Output
4
Note
We did not proofread this statement at all.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
a = list(map(int, input().split()))
print(2+(min(a)^a[2])) | python | code_algorithm | [
{
"input": "5\n1 2 3 4 5\n",
"output": "4\n"
},
{
"input": "7\n24 10 8 26 25 5 16\n",
"output": "15\n"
},
{
"input": "7\n18 29 23 23 1 14 5\n",
"output": "24\n"
},
{
"input": "9\n23 1 2 26 9 11 23 10 26\n",
"output": "5\n"
},
{
"input": "7\n4 13 8 20 31 17 3\n",
"output": "13\n"
},
{
"input": "6\n12 12 29 10 30 32\n",
"output": "25\n"
},
{
"input": "8\n9 24 29 4 20 14 8 31\n",
"output": "27\n"
},
{
"input": "7\n2 6 7 1 3 4 5\n",
"output": "8\n"
},
{
"input": "5\n14 27 8 7 28\n",
"output": "17\n"
},
{
"input": "6\n32 9 29 17 24 20\n",
"output": "22\n"
},
{
"input": "8\n22 27 29 29 27 26 27 21\n",
"output": "10\n"
},
{
"input": "6\n6 12 3 15 9 18\n",
"output": "2\n"
},
{
"input": "5\n22 19 19 16 14\n",
"output": "31\n"
},
{
"input": "10\n9 16 19 23 7 14 21 15 14 6\n",
"output": "23\n"
},
{
"input": "8\n27 6 18 14 16 23 31 15\n",
"output": "22\n"
},
{
"input": "5\n31 31 30 31 1\n",
"output": "33\n"
},
{
"input": "10\n5 20 18 1 12 17 22 20 26 4\n",
"output": "21\n"
},
{
"input": "9\n17 16 8 13 6 29 22 27 18\n",
"output": "16\n"
},
{
"input": "6\n28 4 13 29 17 8\n",
"output": "11\n"
},
{
"input": "8\n19 6 29 23 17 8 30 3\n",
"output": "32\n"
},
{
"input": "5\n27 30 8 32 3\n",
"output": "13\n"
},
{
"input": "7\n31 1 19 3 11 20 31\n",
"output": "20\n"
}
] | code_contests | python | 0 | 9fa83559efbeb87252229e9110e2fc38 |
The legend of the foundation of Vectorland talks of two integers x and y. Centuries ago, the array king placed two markers at points |x| and |y| on the number line and conquered all the land in between (including the endpoints), which he declared to be Arrayland. Many years later, the vector king placed markers at points |x - y| and |x + y| and conquered all the land in between (including the endpoints), which he declared to be Vectorland. He did so in such a way that the land of Arrayland was completely inside (including the endpoints) the land of Vectorland.
Here |z| denotes the absolute value of z.
Now, Jose is stuck on a question of his history exam: "What are the values of x and y?" Jose doesn't know the answer, but he believes he has narrowed the possible answers down to n integers a_1, a_2, ..., a_n. Now, he wants to know the number of unordered pairs formed by two different elements from these n integers such that the legend could be true if x and y were equal to these two values. Note that it is possible that Jose is wrong, and that no pairs could possibly make the legend true.
Input
The first line contains a single integer n (2 ≤ n ≤ 2 ⋅ 10^5) — the number of choices.
The second line contains n pairwise distinct integers a_1, a_2, ..., a_n (-10^9 ≤ a_i ≤ 10^9) — the choices Jose is considering.
Output
Print a single integer number — the number of unordered pairs \\{x, y\} formed by different numbers from Jose's choices that could make the legend true.
Examples
Input
3
2 5 -3
Output
2
Input
2
3 6
Output
1
Note
Consider the first sample. For the pair \{2, 5\}, the situation looks as follows, with the Arrayland markers at |2| = 2 and |5| = 5, while the Vectorland markers are located at |2 - 5| = 3 and |2 + 5| = 7:
<image>
The legend is not true in this case, because the interval [2, 3] is not conquered by Vectorland. For the pair \{5, -3\} the situation looks as follows, with Arrayland consisting of the interval [3, 5] and Vectorland consisting of the interval [2, 8]:
<image>
As Vectorland completely contains Arrayland, the legend is true. It can also be shown that the legend is true for the pair \{2, -3\}, for a total of two pairs.
In the second sample, the only pair is \{3, 6\}, and the situation looks as follows:
<image>
Note that even though Arrayland and Vectorland share 3 as endpoint, we still consider Arrayland to be completely inside of Vectorland.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | num = int(input())
data = [abs(int(i)) for i in input().split()]
data.sort()
def bins(a, b, n):
if a == b:
if data[a] <= n:
return a+1
else:
return a
else:
m = (a+b)//2
if data[m] <= n:
return bins(m+1,b,n)
else:
return bins(a, m, n)
sum = 0
#prev = 0
ind = 0
for i in range(num):
while ind < num and data[ind] <= 2*data[i]:
ind += 1
#prev = bins(prev, num-1, 2*data[i]) - 1
sum += ind - i - 1
#print(2*data[i] ,bins(i, num-1, 2*data[i]), bins(i, num-1, 2*data[i]) - i - 1)
print(sum)
#data = [1,2,3, 4,5,6,7,23]
#print(bins(1,6,3)) | python | code_algorithm | [
{
"input": "2\n3 6\n",
"output": "1\n"
},
{
"input": "3\n2 5 -3\n",
"output": "2\n"
},
{
"input": "3\n0 1000000000 -1000000000\n",
"output": "1\n"
},
{
"input": "10\n9 1 2 3 5 7 4 10 6 8\n",
"output": "25\n"
},
{
"input": "20\n55 -14 -28 13 -67 -23 58 2 -87 92 -80 62 -44 86 18 97 -47 63 32 94\n",
"output": "96\n"
},
{
"input": "50\n-482 -431 -457 -473 -428 -427 -406 -422 -426 -472 -407 -441 -408 -475 -463 -443 -447 -450 -412 -436 -481 -454 -465 -403 -411 -460 -453 -466 -468 -459 -486 -413 -420 -421 -424 -470 -492 -409 -400 -425 -493 -438 -418 -456 -499 -410 -415 -487 -430 -476\n",
"output": "1225\n"
},
{
"input": "100\n404 523 -303 876 982 -275 498 287 255 491 -723 289 203 -796 -469 -299 -435 -869 58 577 55 600 153 -948 -11 726 129 797 -323 99 -934 -419 101 -307 -525 502 353 44 -905 371 -946 925 -538 614 -171 -867 -929 702 -429 720 94 -390 997 -803 451 379 57 -377 -545 -890 442 525 -975 -484 808 -498 -523 641 725 -425 621 -961 -530 -863 724 -501 -389 348 -263 -396 -225 -489 339 -619 -964 935 -950 210 -245 -326 -850 533 -261 -106 46 270 936 698 -392 -514\n",
"output": "2751\n"
},
{
"input": "10\n-994167199 -21213955 -162630040 335515257 -234713251 -101691063 235271021 -401255443 591241065 803570234\n",
"output": "14\n"
},
{
"input": "20\n14 8 6 -16 5 -9 0 11 -7 10 20 -6 -17 -13 -11 7 -2 9 -19 19\n",
"output": "110\n"
},
{
"input": "10\n-35 77 72 -62 76 90 58 97 -74 94\n",
"output": "38\n"
},
{
"input": "8\n-9 -17 -18 -19 9 7 18 19\n",
"output": "19\n"
},
{
"input": "2\n0 1\n",
"output": "0\n"
},
{
"input": "50\n29 80 0 91 93 36 83 44 79 60 53 89 18 64 37 13 15 54 98 90 68 88 86 38 63 92 16 70 58 45 46 96 62 21 31 14 30 42 7 9 69 97 50 85 84 57 10 59 33 23\n",
"output": "650\n"
}
] | code_contests | python | 0.7 | 2d9c6c6b4a9a63d53bbd3ba63aff3e7d |
Polycarp decided to relax on his weekend and visited to the performance of famous ropewalkers: Agafon, Boniface and Konrad.
The rope is straight and infinite in both directions. At the beginning of the performance, Agafon, Boniface and Konrad are located in positions a, b and c respectively. At the end of the performance, the distance between each pair of ropewalkers was at least d.
Ropewalkers can walk on the rope. In one second, only one ropewalker can change his position. Every ropewalker can change his position exactly by 1 (i. e. shift by 1 to the left or right direction on the rope). Agafon, Boniface and Konrad can not move at the same time (Only one of them can move at each moment). Ropewalkers can be at the same positions at the same time and can "walk past each other".
You should find the minimum duration (in seconds) of the performance. In other words, find the minimum number of seconds needed so that the distance between each pair of ropewalkers can be greater or equal to d.
Ropewalkers can walk to negative coordinates, due to the rope is infinite to both sides.
Input
The only line of the input contains four integers a, b, c, d (1 ≤ a, b, c, d ≤ 10^9). It is possible that any two (or all three) ropewalkers are in the same position at the beginning of the performance.
Output
Output one integer — the minimum duration (in seconds) of the performance.
Examples
Input
5 2 6 3
Output
2
Input
3 1 5 6
Output
8
Input
8 3 3 2
Output
2
Input
2 3 10 4
Output
3
Note
In the first example: in the first two seconds Konrad moves for 2 positions to the right (to the position 8), while Agafon and Boniface stay at their positions. Thus, the distance between Agafon and Boniface will be |5 - 2| = 3, the distance between Boniface and Konrad will be |2 - 8| = 6 and the distance between Agafon and Konrad will be |5 - 8| = 3. Therefore, all three pairwise distances will be at least d=3, so the performance could be finished within 2 seconds.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a, b, c, d = map(int, input().split())
a, b, c = sorted([a, b, c])
def solve1(a, b, c):
r1 = max(0, d-(b-a))
b += r1
r2 = max(0, d-(c-b))
return r1+r2
def solve2(a, b, c):
r1 = max(0, d-(c-b))
r2 = max(0, d-(b-a))
return r1+r2
def solve3(a, b, c):
r1 = max(0, d-(c-b))
b -= r1
r2 = max(0, d-(b-a))
return r1+r2
r1 = solve1(a, b, c)
r2 = solve2(a, b, c)
r3 = solve3(a, b, c)
print(min(r1, r2, r3))
| python | code_algorithm | [
{
"input": "5 2 6 3\n",
"output": "2\n"
},
{
"input": "2 3 10 4\n",
"output": "3\n"
},
{
"input": "3 1 5 6\n",
"output": "8\n"
},
{
"input": "8 3 3 2\n",
"output": "2\n"
},
{
"input": "1 1 1 1\n",
"output": "2\n"
},
{
"input": "1 2 1 1\n",
"output": "1\n"
},
{
"input": "716270982 22102638 553198855 1000000000\n",
"output": "1305831656\n"
},
{
"input": "3 2 1 4\n",
"output": "6\n"
},
{
"input": "3 5 8 1\n",
"output": "0\n"
},
{
"input": "3 2 2 3\n",
"output": "5\n"
},
{
"input": "89 983 751 1000\n",
"output": "1106\n"
},
{
"input": "1 4 4 5\n",
"output": "7\n"
},
{
"input": "1 5 4 8\n",
"output": "12\n"
},
{
"input": "9 6 2 5\n",
"output": "3\n"
},
{
"input": "1 1 1 1000000000\n",
"output": "2000000000\n"
},
{
"input": "2 1 1 3\n",
"output": "5\n"
},
{
"input": "2 3 1 6\n",
"output": "10\n"
},
{
"input": "3 2 3 5\n",
"output": "9\n"
},
{
"input": "1 500000000 1000000000 1000000000\n",
"output": "1000000001\n"
},
{
"input": "1 3 2 6\n",
"output": "10\n"
},
{
"input": "2 4 7 6\n",
"output": "7\n"
},
{
"input": "3 1 4 2\n",
"output": "1\n"
},
{
"input": "1 2 9 5\n",
"output": "4\n"
},
{
"input": "1 4 4 6\n",
"output": "9\n"
},
{
"input": "1 3 3 5\n",
"output": "8\n"
},
{
"input": "1 3 4 5\n",
"output": "7\n"
},
{
"input": "5 4 2 3\n",
"output": "3\n"
},
{
"input": "5 5 2 6\n",
"output": "9\n"
},
{
"input": "1 3 3 6\n",
"output": "10\n"
},
{
"input": "1000000000 1 1000000000 999999999\n",
"output": "999999999\n"
},
{
"input": "5 5 7 5\n",
"output": "8\n"
},
{
"input": "5 5 4 1\n",
"output": "1\n"
},
{
"input": "1 3 2 5\n",
"output": "8\n"
},
{
"input": "500 1 500 1000\n",
"output": "1501\n"
},
{
"input": "999999999 1 1 1000000000\n",
"output": "1000000002\n"
},
{
"input": "1000000000 1000000000 1000000000 1000000000\n",
"output": "2000000000\n"
},
{
"input": "1 1 500 10\n",
"output": "10\n"
},
{
"input": "3 1 2 7\n",
"output": "12\n"
},
{
"input": "500000000 250000000 750000000 1000000000\n",
"output": "1500000000\n"
},
{
"input": "1 1 2 100\n",
"output": "199\n"
},
{
"input": "1000000000 1000000000 1000000000 1\n",
"output": "2\n"
},
{
"input": "5 3 4 10\n",
"output": "18\n"
},
{
"input": "1 1 4 5\n",
"output": "7\n"
},
{
"input": "1 5 10 3\n",
"output": "0\n"
},
{
"input": "15 15 15 15\n",
"output": "30\n"
},
{
"input": "1 2 3 4\n",
"output": "6\n"
},
{
"input": "2 2 3 4\n",
"output": "7\n"
},
{
"input": "1 4 3 9\n",
"output": "15\n"
},
{
"input": "1 3 4 6\n",
"output": "9\n"
}
] | code_contests | python | 0.8 | 0d80cfb2a887fb99c2d2355dfd5018c2 |
There are n boxers, the weight of the i-th boxer is a_i. Each of them can change the weight by no more than 1 before the competition (the weight cannot become equal to zero, that is, it must remain positive). Weight is always an integer number.
It is necessary to choose the largest boxing team in terms of the number of people, that all the boxers' weights in the team are different (i.e. unique).
Write a program that for given current values a_i will find the maximum possible number of boxers in a team.
It is possible that after some change the weight of some boxer is 150001 (but no more).
Input
The first line contains an integer n (1 ≤ n ≤ 150000) — the number of boxers. The next line contains n integers a_1, a_2, ..., a_n, where a_i (1 ≤ a_i ≤ 150000) is the weight of the i-th boxer.
Output
Print a single integer — the maximum possible number of people in a team.
Examples
Input
4
3 2 4 1
Output
4
Input
6
1 1 1 4 4 4
Output
5
Note
In the first example, boxers should not change their weights — you can just make a team out of all of them.
In the second example, one boxer with a weight of 1 can be increased by one (get the weight of 2), one boxer with a weight of 4 can be reduced by one, and the other can be increased by one (resulting the boxers with a weight of 3 and 5, respectively). Thus, you can get a team consisting of boxers with weights of 5, 4, 3, 2, 1.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | N = int(input())
A = sorted([int(a) for a in input().split()])
k = 0
ans = 0
for i in range(N):
if k > A[i]:
pass
elif k >= A[i] - 1:
ans += 1
k += 1
else:
ans += 1
k = A[i] - 1
print(ans)
| python | code_algorithm | [
{
"input": "6\n1 1 1 4 4 4\n",
"output": "5\n"
},
{
"input": "4\n3 2 4 1\n",
"output": "4\n"
},
{
"input": "10\n8 9 4 9 6 10 8 2 7 1\n",
"output": "10\n"
},
{
"input": "125\n8 85 125 177 140 158 2 152 67 102 9 61 29 188 102 193 112 194 15 7 133 134 145 7 89 193 130 149 134 51 13 194 191 149 73 106 151 85 42 53 163 134 127 7 51 61 178 105 117 197 35 21 122 164 133 165 135 12 192 60 54 187 173 75 74 195 85 62 166 195 131 109 191 196 61 44 61 20 95 147 199 142 71 198 36 153 58 141 2 101 6 182 58 137 166 30 146 199 10 108 18 182 132 70 168 183 3 10 124 153 12 135 76 94 124 169 177 115 79 200 184 76 77 145 147\n",
"output": "118\n"
},
{
"input": "7\n1 1 2 3 5 6 6\n",
"output": "7\n"
},
{
"input": "10\n9 6 6 5 1 10 4 3 4 8\n",
"output": "10\n"
},
{
"input": "10\n6 7 3 10 2 2 10 9 8 9\n",
"output": "10\n"
},
{
"input": "5\n1 1 1 3 3\n",
"output": "4\n"
},
{
"input": "8\n3 2 2 1 1 2 1 2\n",
"output": "4\n"
},
{
"input": "1\n1\n",
"output": "1\n"
},
{
"input": "10\n2 3 5 2 4 3 1 1 5 4\n",
"output": "6\n"
},
{
"input": "2\n2 2\n",
"output": "2\n"
},
{
"input": "8\n5 6 2 1 2 5 6 10\n",
"output": "8\n"
},
{
"input": "2\n1 1\n",
"output": "2\n"
},
{
"input": "9\n2 1 3 3 1 3 2 1 2\n",
"output": "4\n"
},
{
"input": "10\n9 1 6 2 7 3 10 8 4 5\n",
"output": "10\n"
},
{
"input": "10\n10 3 1 3 9 1 8 4 10 9\n",
"output": "10\n"
},
{
"input": "116\n105 88 185 188 182 117 178 167 135 86 200 138 200 27 40 38 125 134 1 200 193 160 199 25 114 132 44 182 170 191 58 177 160 63 81 166 93 160 167 47 88 104 140 185 18 92 162 45 43 121 131 191 171 156 106 34 81 10 112 179 176 57 33 34 197 157 29 60 138 196 103 139 15 42 121 60 27 22 110 144 103 195 119 76 172 88 151 41 47 65 39 4 188 51 51 47 152 180 50 158 166 176 10 107 91 69 33 51 179 16 45 71 89 46 150 156\n",
"output": "115\n"
},
{
"input": "111\n117 101 127 127 119 172 19 117 28 119 119 54 163 136 37 145 11 83 117 9 145 2 11 19 73 18 3 65 164 100 36 101 64 1 45 11 2 137 11 136 128 110 117 91 54 3 47 64 164 155 137 63 117 65 63 90 81 99 136 136 38 172 109 117 127 172 127 126 28 38 164 137 162 99 91 145 172 90 101 110 64 91 92 56 173 18 27 74 108 45 173 173 29 173 3 73 10 54 173 27 145 19 74 64 100 73 47 27 9 56 18\n",
"output": "83\n"
},
{
"input": "6\n1 9 2 6 4 3\n",
"output": "6\n"
},
{
"input": "5\n2 1 5 2 4\n",
"output": "5\n"
}
] | code_contests | python | 0.1 | a5d72153fc2fb0b78c6987a17865dc79 |
Mike and Ann are sitting in the classroom. The lesson is boring, so they decided to play an interesting game. Fortunately, all they need to play this game is a string s and a number k (0 ≤ k < |s|).
At the beginning of the game, players are given a substring of s with left border l and right border r, both equal to k (i.e. initially l=r=k). Then players start to make moves one by one, according to the following rules:
* A player chooses l^{\prime} and r^{\prime} so that l^{\prime} ≤ l, r^{\prime} ≥ r and s[l^{\prime}, r^{\prime}] is lexicographically less than s[l, r]. Then the player changes l and r in this way: l := l^{\prime}, r := r^{\prime}.
* Ann moves first.
* The player, that can't make a move loses.
Recall that a substring s[l, r] (l ≤ r) of a string s is a continuous segment of letters from s that starts at position l and ends at position r. For example, "ehn" is a substring (s[3, 5]) of "aaaehnsvz" and "ahz" is not.
Mike and Ann were playing so enthusiastically that they did not notice the teacher approached them. Surprisingly, the teacher didn't scold them, instead of that he said, that he can figure out the winner of the game before it starts, even if he knows only s and k.
Unfortunately, Mike and Ann are not so keen in the game theory, so they ask you to write a program, that takes s and determines the winner for all possible k.
Input
The first line of the input contains a single string s (1 ≤ |s| ≤ 5 ⋅ 10^5) consisting of lowercase English letters.
Output
Print |s| lines.
In the line i write the name of the winner (print Mike or Ann) in the game with string s and k = i, if both play optimally
Examples
Input
abba
Output
Mike
Ann
Ann
Mike
Input
cba
Output
Mike
Mike
Mike
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | s = input().rstrip()
minimum = "z"
for ch in s:
if ch > minimum:
print("Ann")
else:
print("Mike")
minimum = ch | python | code_algorithm | [
{
"input": "abba\n",
"output": "Mike\nAnn\nAnn\nMike\n"
},
{
"input": "cba\n",
"output": "Mike\nMike\nMike\n"
},
{
"input": "dyqyq\n",
"output": "Mike\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "pefrpnmnlfxihesbjxybgvxdvvbliljvqoxxzvhlpfxcucqurvzeygbnpghxkgaethtkgjvlctneuuqzfwypkajbfcmxpadcqdjwcrxjghjagep\n",
"output": "Mike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\n"
},
{
"input": "aabdbddcaabbcccabcbadadbbcddcbbdbbaadcbcdabdccbadbacdbbdcdbbccacca\n",
"output": "Mike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nMike\n"
},
{
"input": "qrwrere\n",
"output": "Mike\nAnn\nAnn\nAnn\nMike\nAnn\nMike\n"
},
{
"input": "vzcaonudppbkckblxwhscsobbkzdhvpdhcdytsrnsfkztiwbupqemknubzyzcuccshdvmtymijvteyfzglvlqrfrtbzdtkurgjsfaoyvxmplddcscrkbmuktdmjunponduakfmeopugxrnkgwaaqllxuakaqsnmvfyeifkjw\n",
"output": "Mike\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "igiggr\n",
"output": "Mike\nMike\nAnn\nMike\nMike\nAnn\n"
},
{
"input": "nsfsgfs\n",
"output": "Mike\nAnn\nMike\nAnn\nAnn\nMike\nAnn\n"
},
{
"input": "ctjfjfilqa\n",
"output": "Mike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\n"
},
{
"input": "lbkgircdbr\n",
"output": "Mike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\n"
},
{
"input": "aaab\n",
"output": "Mike\nMike\nMike\nAnn\n"
},
{
"input": "abacabadabacabaeabacabadabacaba\n",
"output": "Mike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\nAnn\nMike\n"
},
{
"input": "ww\n",
"output": "Mike\nMike\n"
},
{
"input": "abcdefghijklmnopqrstuvwxyz\n",
"output": "Mike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "wwsvvcmdfsydeuykyvnssgobsefsfoguedmjirgyknaoqxtcohonqzsopdxnzkskkwafhjjbslphereuavqqfzocevhvyudzvupgzvfhssygijvphxnkfjijbcokgawbouicijfdosgrvxjirfwksomokieyydxulzwkfdozshaxxvzbgfbmrfiyqtmqkurnpryeymkrkfiscjxftzlhsuvgwhfyvytxsoybdmrcwy\n",
"output": "Mike\nMike\nMike\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "okdudu\n",
"output": "Mike\nMike\nMike\nAnn\nMike\nAnn\n"
},
{
"input": "abacaba\n",
"output": "Mike\nAnn\nMike\nAnn\nMike\nAnn\nMike\n"
},
{
"input": "bt\n",
"output": "Mike\nAnn\n"
},
{
"input": "aaaa\n",
"output": "Mike\nMike\nMike\nMike\n"
},
{
"input": "dequudpveoozswafkmdadrxtnmagtpcdqzhxkitrbqytichoswltzzasfoeqktomxlypvhjyjnjymvlrvglvyursfm\n",
"output": "Mike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "a\n",
"output": "Mike\n"
},
{
"input": "zhh\n",
"output": "Mike\nMike\nMike\n"
},
{
"input": "ktssaaftsrxpgjcmxovyupdlcpuviwpencubkkxgorqgtaioprvhfvzexfnlpopphvoqyajrhheoglmhvovfakccnacwipvsjbkhtcjaljvagpbewcojocayolfbptalnetbjmdtisckvoadcnnbctggcqpslqbdzzsztwynejsgpkbeycwgfcowjstibkabcljcwnnztriqjzqhvhxfbdycxwgiwdxrogbfhloafrioqqetvsrfjibqadanxluzwfsulubqsrwtvbtjurbnvlgpgmznrfvjycljhumkookwkkbcwawtkwzolggvzvurcvpfyjubvtdzuxzktcevozmatwcgwlzsskcvfmelfvmvmwutxltyokobfkcitwdyqjlefpuieruwfacxweuvncddftgwnhocjdygnvyfnnuvtsfdtytnqntecuetloowvapycjvpmaepemdhtehrbfnumvrjxucwbjyfw\n",
"output": "Mike\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "xtfveqizlaogqbkrxdbxrkdzuitrsykmmlebxykozcrxjayisqjwdpxjpnjdpbdwkytvoyvdobbixmizlwinockrqkafgluzfwhefjwennkahnpfprlgdebtthawixffwjwbhxrvmohxmixqqlnwukqhogkmeqdqvfksszrbbkhjkptekyruyrcvtzauiloeyktsqvjlwprroxmmjoequmipuiqpndcbjgmqqmhzjdcgjgqhdhaloqkbevjxwhcfuqosxultawmhlbgndksnykawsoonqyinaqpsfiyynummtvestjqlqhpciblloegwcvjfbuiczxxhqfnbkxkesmlhnotdemshcflewhqajtjtgbauukybbbymkpnnxemvehnrjapjanptmdklbjznmzscwqsnrtyvujidrwwadslvdkzbeqrkgsjfpedtdraxkevwouycpckrfxya\n",
"output": "Mike\nMike\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\n"
},
{
"input": "rzsqydfirnnlvleiiflggajdxxpjwylqazppoclbcuonlgvyvftnmwfjnptoazmstkmamygnwmzfnpseqyqmtfctppfhxrudagbshfrfdbwrfglqkyahffpakfzwxakwjzmoilqucfoylhjjhzlsvfvkntacijjfprbdbbtuenhuklhfbjlnfmnfjyyiujqbfbjbllzmjfbczieaaxvmkbcvjsesbktiftezkwrvhtvyqglgziowfyncexonhvhinbdytmgltdjzsoxftimzardfmslprfyzgoobrachbvpyhdbtubemsnnmpmmcuclwwmdfgtsaoyvdccymmxgcn\n",
"output": "Mike\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "dzhnrmccyewujtwdiqfjhejmfgqolusfaofqaoavrklvvgfgsghyncicvhzvymykqgfvvavboralunymyqdeflwbofiyzwvxekexxybczajueixnsjdjrdofhhgbeygeyulokazsvjjltnpztdlxdoljccfhqkhurjkjcydghosqngpfqoqzkvxgyruxlkdykdymredzfgsbtjiwlpqcrtrimhvllmnwktrnbuzzejbfaqzurvhtcqcpcfffibycprhbimzjlwtocokbiqvzzsjwbqupsklvgykttmpucqniysydvskvmexasrhmetbswomffieakszvfukuvcatjpiphfhxxllflxslosbpic\n",
"output": "Mike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\n"
},
{
"input": "uhvqagzltihyeofkhfmvpxrxulmuqwzgcdodtbjbkqgpvvdgksqotyxyepdtzlcuibzdilsahjbakqbgapqnvlwycsvdqunhayxawppvplpgmcfijtmzdlncfssyvcpcvpkcflissbfcifleecvxzukhnqxilyqrdktvytetebuewwztppapudxnclrslzykkiafaeujdtpgvwnaycjpezkkyfdjubicilvnljzrnvvwkmhhjqjsbjbbwlueuhcnppibklsjleymwdisdplzehfkqvvbdrujuioearlrjezyjksycxqwpailowkanrixzajpfwhqtazdrkltcypsavhhxosfxuqwvrlysryzmfczmfotyqwjpxbtncogzcioazzjgieofvlbvusbkhsqfutxrorbxheteoupcazzorreajp\n",
"output": "Mike\nMike\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\nAnn\nAnn\nAnn\nAnn\nMike\nAnn\nAnn\n"
}
] | code_contests | python | 0 | 49930fbd91b9597c7a3b03740cc77369 |
After battling Shikamaru, Tayuya decided that her flute is too predictable, and replaced it with a guitar. The guitar has 6 strings and an infinite number of frets numbered from 1. Fretting the fret number j on the i-th string produces the note a_{i} + j.
Tayuya wants to play a melody of n notes. Each note can be played on different string-fret combination. The easiness of performance depends on the difference between the maximal and the minimal indices of used frets. The less this difference is, the easier it is to perform the technique. Please determine the minimal possible difference.
For example, if a = [1, 1, 2, 2, 3, 3], and the sequence of notes is 4, 11, 11, 12, 12, 13, 13 (corresponding to the second example), we can play the first note on the first string, and all the other notes on the sixth string. Then the maximal fret will be 10, the minimal one will be 3, and the answer is 10 - 3 = 7, as shown on the picture.
<image>
Input
The first line contains 6 space-separated numbers a_{1}, a_{2}, ..., a_{6} (1 ≤ a_{i} ≤ 10^{9}) which describe the Tayuya's strings.
The second line contains the only integer n (1 ≤ n ≤ 100 000) standing for the number of notes in the melody.
The third line consists of n integers b_{1}, b_{2}, ..., b_{n} (1 ≤ b_{i} ≤ 10^{9}), separated by space. They describe the notes to be played. It's guaranteed that b_i > a_j for all 1≤ i≤ n and 1≤ j≤ 6, in other words, you can play each note on any string.
Output
Print the minimal possible difference of the maximal and the minimal indices of used frets.
Examples
Input
1 4 100 10 30 5
6
101 104 105 110 130 200
Output
0
Input
1 1 2 2 3 3
7
13 4 11 12 11 13 12
Output
7
Note
In the first sample test it is optimal to play the first note on the first string, the second note on the second string, the third note on the sixth string, the fourth note on the fourth string, the fifth note on the fifth string, and the sixth note on the third string. In this case the 100-th fret is used each time, so the difference is 100 - 100 = 0.
<image>
In the second test it's optimal, for example, to play the second note on the first string, and all the other notes on the sixth string. Then the maximal fret will be 10, the minimal one will be 3, and the answer is 10 - 3 = 7.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import os
import sys
from io import BytesIO, IOBase
# region fastio
BUFSIZE = 8192
class FastIO(IOBase):
newlines = 0
def __init__(self, file):
self._fd = file.fileno()
self.buffer = BytesIO()
self.writable = "x" in file.mode or "r" not in file.mode
self.write = self.buffer.write if self.writable else None
def read(self):
while True:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
if not b:
break
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines = 0
return self.buffer.read()
def readline(self):
while self.newlines == 0:
b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE))
self.newlines = b.count(b"\n") + (not b)
ptr = self.buffer.tell()
self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr)
self.newlines -= 1
return self.buffer.readline()
def flush(self):
if self.writable:
os.write(self._fd, self.buffer.getvalue())
self.buffer.truncate(0), self.buffer.seek(0)
class IOWrapper(IOBase):
def __init__(self, file):
self.buffer = FastIO(file)
self.flush = self.buffer.flush
self.writable = self.buffer.writable
self.write = lambda s: self.buffer.write(s.encode("ascii"))
self.read = lambda: self.buffer.read().decode("ascii")
self.readline = lambda: self.buffer.readline().decode("ascii")
sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout)
input = lambda: sys.stdin.readline()
# ------------------------------
def RL(): return map(int, sys.stdin.readline().split())
def RLL(): return list(map(int, sys.stdin.readline().split()))
def N(): return int(input())
def print_list(l):
print(' '.join(map(str,l)))
# sys.setrecursionlimit(300000)
from heapq import *
# from collections import deque as dq
# from math import ceil,floor,sqrt,pow
# import bisect as bs
# from collections import Counter
# from collections import defaultdict as dc
# from functools import lru_cache
a = RLL()
a.sort(reverse=True)
n = N()
b = RLL()
res = float('inf')
heap = [(b[i]-a[0],i) for i in range(n)]
heapify(heap)
m = max(b)-a[0]
count = [0]*n
while 1:
v,i = heap[0]
res = min(res,m-v)
count[i]+=1
if count[i]==6:
break
t = b[i]-a[count[i]]
m = max(m,t)
heapreplace(heap,(t,i))
print(res)
| python | code_algorithm | [
{
"input": "1 4 100 10 30 5\n6\n101 104 105 110 130 200\n",
"output": "0\n"
},
{
"input": "1 1 2 2 3 3\n7\n13 4 11 12 11 13 12\n",
"output": "7\n"
},
{
"input": "5 4 7 6 4 1\n10\n19 16 18 12 16 15 16 20 16 14\n",
"output": "2\n"
},
{
"input": "158260522 877914575 602436426 24979445 861648772 623690081\n1\n896194147\n",
"output": "0\n"
},
{
"input": "58260522 77914575 2436426 24979445 61648772 23690081\n10\n582107247 906728404 411434947 673536177 411497300 488012525 561127307 800305059 992325267 112738006\n",
"output": "804109112\n"
},
{
"input": "11 16 12 20 12 13\n10\n21 21 21 21 21 21 21 21 21 21\n",
"output": "0\n"
},
{
"input": "1 1 1 96 99 100\n3\n101 146 175\n",
"output": "50\n"
}
] | code_contests | python | 0.2 | e1a2016d31f8c679f0f5275adc45466d |
The Little Elephant loves to play with color cards.
He has n cards, each has exactly two colors (the color of the front side and the color of the back side). Initially, all the cards lay on the table with the front side up. In one move the Little Elephant can turn any card to the other side. The Little Elephant thinks that a set of cards on the table is funny if at least half of the cards have the same color (for each card the color of the upper side is considered).
Help the Little Elephant to find the minimum number of moves needed to make the set of n cards funny.
Input
The first line contains a single integer n (1 ≤ n ≤ 105) — the number of the cards. The following n lines contain the description of all cards, one card per line. The cards are described by a pair of positive integers not exceeding 109 — colors of both sides. The first number in a line is the color of the front of the card, the second one — of the back. The color of the front of the card may coincide with the color of the back of the card.
The numbers in the lines are separated by single spaces.
Output
On a single line print a single integer — the sought minimum number of moves. If it is impossible to make the set funny, print -1.
Examples
Input
3
4 7
4 7
7 4
Output
0
Input
5
4 7
7 4
2 11
9 7
1 1
Output
2
Note
In the first sample there initially are three cards lying with colors 4, 4, 7. Since two of the three cards are of the same color 4, you do not need to change anything, so the answer is 0.
In the second sample, you can turn the first and the fourth cards. After that three of the five cards will be of color 7.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def solve():
n = int(input())
cards = []
cnt = {}
for i in range(n):
card = tuple(map(int, input().split(' ')))
cards.append(card)
cnt[card[0]] = [0, 0]
cnt[card[1]] = [0, 0]
for card in cards:
if card[0] != card[1]:
cnt[card[0]][0] += 1
cnt[card[1]][1] += 1
else:
cnt[card[0]][0] += 1
border = (len(cards) + 1) // 2
best = float('inf')
for num in cnt.keys():
count = cnt[num]
if sum(count) >= border:
# try to flip down -> top or vice versa
needTop = max(0, border - count[0])
best = min(best, needTop)
if best == float('inf'):
print(-1)
else:
print(best)
solve() | python | code_algorithm | [
{
"input": "3\n4 7\n4 7\n7 4\n",
"output": "0\n"
},
{
"input": "5\n4 7\n7 4\n2 11\n9 7\n1 1\n",
"output": "2\n"
},
{
"input": "1\n1 2\n",
"output": "0\n"
},
{
"input": "2\n1 1\n1 1\n",
"output": "0\n"
},
{
"input": "5\n1 2\n1 3\n4 1\n5 1\n6 7\n",
"output": "1\n"
},
{
"input": "4\n1 5\n2 5\n3 5\n4 4\n",
"output": "2\n"
},
{
"input": "5\n1 5\n2 5\n3 5\n4 7\n2 5\n",
"output": "3\n"
},
{
"input": "5\n1 6\n2 6\n3 6\n4 4\n5 5\n",
"output": "3\n"
},
{
"input": "12\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n1 1\n",
"output": "0\n"
},
{
"input": "3\n2 1\n3 1\n4 1\n",
"output": "2\n"
},
{
"input": "5\n4 7\n4 7\n2 7\n9 7\n1 1\n",
"output": "3\n"
},
{
"input": "6\n1 2\n3 1\n4 7\n4 1\n9 1\n7 2\n",
"output": "2\n"
},
{
"input": "10\n1000000000 999999999\n47 74\n47474 75785445\n8798878 458445\n1 2\n888888888 777777777\n99999999 1000000000\n9999999 1000000000\n999999 1000000000\n99999 1000000000\n",
"output": "4\n"
},
{
"input": "5\n5 8\n9 10\n5 17\n5 24\n1 147\n",
"output": "0\n"
},
{
"input": "7\n1 2\n1 2\n1 2\n3 1\n3 1\n3 1\n2 1\n",
"output": "1\n"
},
{
"input": "5\n1 6\n2 6\n3 6\n4 6\n5 6\n",
"output": "3\n"
},
{
"input": "7\n1 2\n2 3\n3 4\n4 5\n5 6\n6 7\n7 8\n",
"output": "-1\n"
},
{
"input": "5\n1 1\n1 1\n2 2\n2 2\n3 3\n",
"output": "-1\n"
},
{
"input": "10\n262253762 715261903\n414831157 8354405\n419984358 829693421\n376600467 175941985\n367533995 350629286\n681027822 408529849\n654503328 717740407\n539773033 704670473\n55322828 380422378\n46174018 186723478\n",
"output": "-1\n"
},
{
"input": "3\n1 1\n2 5\n3 6\n",
"output": "-1\n"
},
{
"input": "47\n53 63\n43 57\n69 52\n66 47\n74 5\n5 2\n6 56\n19 27\n46 27\n31 45\n41 38\n20 20\n69 43\n17 74\n39 43\n28 70\n73 24\n73 59\n23 11\n56 49\n51 37\n70 16\n66 36\n4 7\n1 49\n7 65\n38 5\n47 74\n34 38\n17 22\n59 3\n70 40\n21 15\n10 5\n17 30\n9 12\n28 48\n70 42\n39 70\n18 53\n71 49\n66 25\n37 51\n10 62\n55 7\n18 53\n40 50\n",
"output": "-1\n"
},
{
"input": "7\n4 7\n7 4\n4 7\n1 1\n2 2\n3 3\n4 4\n",
"output": "1\n"
},
{
"input": "4\n1000000000 1000000000\n999999999 1000000000\n999999997 999999998\n47 74\n",
"output": "1\n"
},
{
"input": "7\n1000000000 999999999\n1000000000 999999999\n1000000000 999999999\n1000000000 999999999\n1000000000 999999999\n1000000000 999999999\n1000000000 999999999\n",
"output": "0\n"
},
{
"input": "2\n47 74\n47 85874\n",
"output": "0\n"
},
{
"input": "10\n2 2\n1 1\n1 1\n1 2\n1 2\n2 2\n2 1\n1 1\n1 2\n1 1\n",
"output": "0\n"
},
{
"input": "5\n1 7\n2 7\n3 7\n4 7\n5 7\n",
"output": "3\n"
},
{
"input": "1\n1 1\n",
"output": "0\n"
},
{
"input": "3\n7 7\n1 2\n2 1\n",
"output": "1\n"
},
{
"input": "100\n1 2\n2 1\n2 1\n1 2\n1 1\n1 2\n2 1\n1 1\n2 2\n2 1\n2 1\n1 1\n1 1\n2 1\n2 1\n2 1\n2 1\n2 1\n1 1\n2 1\n1 1\n1 1\n2 2\n1 2\n1 2\n1 2\n2 2\n1 2\n1 2\n2 1\n1 2\n2 1\n1 2\n2 2\n1 1\n2 1\n1 2\n2 1\n2 1\n1 2\n2 1\n2 1\n1 2\n2 1\n1 1\n1 2\n1 1\n1 1\n2 2\n2 2\n2 1\n2 1\n1 2\n2 2\n1 1\n2 1\n2 2\n1 1\n1 1\n1 2\n2 2\n2 1\n2 1\n2 2\n1 1\n1 1\n2 1\n2 1\n2 1\n2 2\n2 2\n2 1\n1 1\n1 2\n2 1\n2 2\n2 1\n1 1\n2 1\n2 1\n1 1\n1 2\n1 2\n2 1\n2 1\n2 1\n2 2\n1 2\n1 2\n2 1\n1 1\n1 1\n1 2\n2 1\n1 2\n2 2\n1 2\n2 1\n2 2\n2 1\n",
"output": "0\n"
},
{
"input": "8\n1 2\n2 1\n2 1\n3 1\n4 2\n5 2\n6 2\n7 2\n",
"output": "2\n"
},
{
"input": "2\n1 2\n2 3\n",
"output": "0\n"
},
{
"input": "2\n1 2\n2 1\n",
"output": "0\n"
},
{
"input": "5\n1 10\n2 10\n3 10\n4 10\n5 10\n",
"output": "3\n"
},
{
"input": "4\n1 2\n1 2\n2 1\n2 1\n",
"output": "0\n"
},
{
"input": "10\n9 1000000000\n47 74\n47474 75785445\n8798878 458445\n1 2\n888888888 777777777\n99999999 1000000000\n9999999 1000000000\n999999 1000000000\n99999 1000000000\n",
"output": "5\n"
},
{
"input": "10\n1 10\n2 10\n3 10\n4 10\n5 10\n10 1\n10 2\n10 3\n10 4\n10 5\n",
"output": "0\n"
},
{
"input": "3\n98751 197502\n296253 395004\n493755 592506\n",
"output": "-1\n"
},
{
"input": "10\n1 10\n1 10\n1 1\n7 8\n6 7\n9 5\n4 1\n2 3\n3 10\n2 8\n",
"output": "-1\n"
},
{
"input": "7\n1 1\n1 1\n1 1\n2 3\n4 5\n6 7\n8 9\n",
"output": "-1\n"
}
] | code_contests | python | 0 | 1a5cd31e7a2181d660972ec20c037372 |
Little Vitaly loves different algorithms. Today he has invented a new algorithm just for you. Vitaly's algorithm works with string s, consisting of characters "x" and "y", and uses two following operations at runtime:
1. Find two consecutive characters in the string, such that the first of them equals "y", and the second one equals "x" and swap them. If there are several suitable pairs of characters, we choose the pair of characters that is located closer to the beginning of the string.
2. Find in the string two consecutive characters, such that the first of them equals "x" and the second one equals "y". Remove these characters from the string. If there are several suitable pairs of characters, we choose the pair of characters that is located closer to the beginning of the string.
The input for the new algorithm is string s, and the algorithm works as follows:
1. If you can apply at least one of the described operations to the string, go to step 2 of the algorithm. Otherwise, stop executing the algorithm and print the current string.
2. If you can apply operation 1, then apply it. Otherwise, apply operation 2. After you apply the operation, go to step 1 of the algorithm.
Now Vitaly wonders, what is going to be printed as the result of the algorithm's work, if the input receives string s.
Input
The first line contains a non-empty string s.
It is guaranteed that the string only consists of characters "x" and "y". It is guaranteed that the string consists of at most 106 characters. It is guaranteed that as the result of the algorithm's execution won't be an empty string.
Output
In the only line print the string that is printed as the result of the algorithm's work, if the input of the algorithm input receives string s.
Examples
Input
x
Output
x
Input
yxyxy
Output
y
Input
xxxxxy
Output
xxxx
Note
In the first test the algorithm will end after the first step of the algorithm, as it is impossible to apply any operation. Thus, the string won't change.
In the second test the transformation will be like this:
1. string "yxyxy" transforms into string "xyyxy";
2. string "xyyxy" transforms into string "xyxyy";
3. string "xyxyy" transforms into string "xxyyy";
4. string "xxyyy" transforms into string "xyy";
5. string "xyy" transforms into string "y".
As a result, we've got string "y".
In the third test case only one transformation will take place: string "xxxxxy" transforms into string "xxxx". Thus, the answer will be string "xxxx".
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from sys import stdin,stdout
import bisect as bs
nmbr = lambda: int(stdin.readline())
lst = lambda: list(map(int,stdin.readline().split()))
for _ in range(1):#nmbr()):
s=input()
n=len(s)
x=s.count('x')
y=n-x
if y>=x:
for i in range(y-x):
stdout.write('y')
else:
for i in range(x-y):
stdout.write('x') | python | code_algorithm | [
{
"input": "x\n",
"output": "x"
},
{
"input": "yxyxy\n",
"output": "y"
},
{
"input": "xxxxxy\n",
"output": "xxxx"
},
{
"input": "xxxyx\n",
"output": "xxx"
},
{
"input": "xxxxxxxxxxxyxyyxxxxyxxxxxyxxxxxyxxxxxxxxyx\n",
"output": "xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
},
{
"input": "yxyyxyyx\n",
"output": "yy"
},
{
"input": "yxxyxyx\n",
"output": "x"
},
{
"input": "xxx\n",
"output": "xxx"
},
{
"input": "xyyxyyyyyxxxxxxxyxyxyyxyyxyyxxyxyxyxxxyxxy\n",
"output": "xx"
},
{
"input": "yxxxx\n",
"output": "xxx"
},
{
"input": "xxyxx\n",
"output": "xxx"
},
{
"input": "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy\n",
"output": "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"
},
{
"input": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n",
"output": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}
] | code_contests | python | 0.1 | faf4423cf67113f73432ffeff56db744 |
When Valera has got some free time, he goes to the library to read some books. Today he's got t free minutes to read. That's why Valera took n books in the library and for each book he estimated the time he is going to need to read it. Let's number the books by integers from 1 to n. Valera needs ai minutes to read the i-th book.
Valera decided to choose an arbitrary book with number i and read the books one by one, starting from this book. In other words, he will first read book number i, then book number i + 1, then book number i + 2 and so on. He continues the process until he either runs out of the free time or finishes reading the n-th book. Valera reads each book up to the end, that is, he doesn't start reading the book if he doesn't have enough free time to finish reading it.
Print the maximum number of books Valera can read.
Input
The first line contains two integers n and t (1 ≤ n ≤ 105; 1 ≤ t ≤ 109) — the number of books and the number of free minutes Valera's got. The second line contains a sequence of n integers a1, a2, ..., an (1 ≤ ai ≤ 104), where number ai shows the number of minutes that the boy needs to read the i-th book.
Output
Print a single integer — the maximum number of books Valera can read.
Examples
Input
4 5
3 1 2 1
Output
3
Input
3 3
2 2 3
Output
1
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import bisect
n,t=list(map(int,input().split()))
a=list(map(int,input().rstrip().split()))
b=[0]
sol=0
for i in range(n):
b.append(b[-1]+a[i])
b.pop(0)
for i in range(n):
sol=max(sol,bisect.bisect_right(b,t)-i)
t+=a[i]
print(sol)
| python | code_algorithm | [
{
"input": "4 5\n3 1 2 1\n",
"output": "3\n"
},
{
"input": "3 3\n2 2 3\n",
"output": "1\n"
},
{
"input": "20 30\n8 1 2 6 9 4 1 9 9 10 4 7 8 9 5 7 1 8 7 4\n",
"output": "6\n"
},
{
"input": "2 10\n6 4\n",
"output": "2\n"
},
{
"input": "100 100\n75 92 18 6 81 67 7 92 100 65 82 32 50 67 85 31 80 91 84 63 39 52 92 81 1 98 24 12 43 48 17 86 51 72 48 95 45 50 12 66 19 79 49 89 34 1 97 75 20 33 96 27 42 23 73 71 93 1 85 19 66 14 17 61 20 39 36 33 42 61 56 64 23 91 80 99 40 74 13 18 98 85 74 39 62 84 46 74 50 23 38 11 79 14 9 25 66 100 25 52\n",
"output": "3\n"
},
{
"input": "30 60\n16 13 22 38 13 35 17 17 20 38 12 19 9 22 20 3 35 34 34 21 35 40 22 3 27 19 12 4 8 19\n",
"output": "4\n"
},
{
"input": "50 2\n124 214 63 73 996 760 38 571 451 300 970 1 706 937 837 494 619 88 851 411 957 990 842 613 821 649 627 34 693 678 734 116 816 985 705 940 499 493 922 967 854 439 112 644 961 438 189 572 655 550\n",
"output": "1\n"
},
{
"input": "10 15\n10 9 1 1 5 10 5 3 7 2\n",
"output": "3\n"
},
{
"input": "6 10\n2 3 4 2 1 1\n",
"output": "4\n"
},
{
"input": "1 3\n5\n",
"output": "0\n"
},
{
"input": "7 13\n6 8 14 9 4 11 10\n",
"output": "2\n"
},
{
"input": "1 10\n4\n",
"output": "1\n"
},
{
"input": "10 1\n4418 7528 8170 1736 1317 3205 8183 4995 8039 4708\n",
"output": "0\n"
}
] | code_contests | python | 1 | 91e72be95de90b2f38066ce61eced907 |
Yaroslav has an array, consisting of (2·n - 1) integers. In a single operation Yaroslav can change the sign of exactly n elements in the array. In other words, in one operation Yaroslav can select exactly n array elements, and multiply each of them by -1.
Yaroslav is now wondering: what maximum sum of array elements can be obtained if it is allowed to perform any number of described operations?
Help Yaroslav.
Input
The first line contains an integer n (2 ≤ n ≤ 100). The second line contains (2·n - 1) integers — the array elements. The array elements do not exceed 1000 in their absolute value.
Output
In a single line print the answer to the problem — the maximum sum that Yaroslav can get.
Examples
Input
2
50 50 50
Output
150
Input
2
-1 -100 -1
Output
100
Note
In the first sample you do not need to change anything. The sum of elements equals 150.
In the second sample you need to change the sign of the first two elements. Then we get the sum of the elements equal to 100.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | #!/usr/bin/python3
n = int(input())
data = list(map(int, input().split()))
negative, zero, positive = 0, 0, 0
for element in data:
if element < 0:
negative += 1
elif element == 0:
zero += 1
else:
positive += 1
seen = {}
min_negative = negative
def go(negative, positive):
global min_negative
if (negative, positive) in seen:
return
seen[(negative, positive)] = True
min_negative = min(min_negative, negative)
for i in range(min(n, negative)+1):
for j in range(min(n-i, zero)+1):
k = n - i - j
if k <= positive:
go(negative-i+k, positive-k+i)
go(negative, positive)
values = sorted(list(map(abs, data)))
for i in range(min_negative):
values[i] *= -1
print(sum(values))
| python | code_algorithm | [
{
"input": "2\n-1 -100 -1\n",
"output": "100\n"
},
{
"input": "2\n50 50 50\n",
"output": "150\n"
},
{
"input": "5\n270 -181 957 -509 -6 937 -175 434 -625\n",
"output": "4094\n"
},
{
"input": "6\n-403 901 -847 -708 -624 413 -293 709 886 445 716\n",
"output": "6359\n"
},
{
"input": "4\n717 473 344 -51 -548 703 -869\n",
"output": "3603\n"
},
{
"input": "5\n-1 -2 -3 -4 -5 -6 -7 8 9\n",
"output": "45\n"
},
{
"input": "22\n549 635 969 -519 -858 185 -788 126 -840 533 -560 168 -539 -962 649 -721 -574 245 -986 -859 496 -257 -361 180 -691 -528 -992 -833 -989 -222 901 950 388 -803 624 -536 -588 310 812 320 862 -640 -851\n",
"output": "26399\n"
},
{
"input": "19\n752 -869 -583 -729 984 -321 -477 -462 429 857 -57 -807 184 296 -594 -728 -903 -524 -726 -551 722 -895 696 301 -339 784 -743 -689 -657 170 -957 -88 -197 832 -65 -689 743\n",
"output": "21400\n"
},
{
"input": "46\n-302 538 -331 769 255 -485 979 -725 937 -136 -469 234 496 -696 857 597 -691 122 -540 139 75 -444 749 887 95 -584 526 595 -44 -992 563 -972 533 335 -913 -58 -369 -602 -550 47 -321 588 337 -392 -956 211 758 940 -122 -861 -310 946 -163 420 608 -252 54 -466 -227 -974 -790 178 35 849 617 219 741 914 358 -759 -246 -58 -52 307 -290 399 15 -655 -14 -462 492 -425 511 956 331 -929 905 -866 181 938 60\n",
"output": "44689\n"
},
{
"input": "19\n-919 -82 -467 -169 100 -363 644 -307 926 971 -695 658 -625 19 -269 -89 63 -733 827 -236 566 95 -496 975 284 157 -373 -656 -245 644 567 -971 -954 337 150 -67 714\n",
"output": "17413\n"
},
{
"input": "5\n-1 -1 -1 2 2 2 2 2 2\n",
"output": "15\n"
},
{
"input": "7\n-5 -10 12 40 20 -33 23 12 -23 21 -32 14 24\n",
"output": "269\n"
},
{
"input": "5\n0 0 0 0 0 -1 -1 1 1\n",
"output": "4\n"
},
{
"input": "56\n-157 136 457 598 -138 -586 -338 752 -566 -718 -333 -965 309 -125 -938 -188 -390 17 -75 -902 -320 163 820 -970 -525 -329 81 488 -412 978 138 344 305 -358 -273 -967 253 -665 -245 187 602 252 -825 -511 828 764 -402 278 995 541 542 549 612 -536 527 -884 225 800 160 -409 -926 -795 -321 -791 981 812 599 381 752 -331 -585 -987 -918 -930 -223 491 -42 -716 836 -412 -497 211 -348 704 -638 6 -840 476 -769 -842 530 616 -97 588 -299 803 228 -250 193 -27 539 -697 417 88 242 578 642 -30 856 -98 70\n",
"output": "54799\n"
},
{
"input": "9\n-690 34 -821 842 -712 -909 36 -62 255 -363 433 794 883 -274 -642 343 -1\n",
"output": "8094\n"
},
{
"input": "27\n-401 -840 -583 -612 -298 -384 798 366 -922 -443 -972 -271 127 -201 992 -748 -351 925 -177 -528 355 5 131 -779 833 -382 -990 -379 -816 681 650 660 624 -112 -652 406 446 -999 259 -778 452 -705 -374 -710 -751 -852 119 -689 -789 96 -984 186 70\n",
"output": "28653\n"
},
{
"input": "5\n-1 -1 -1 -1 -1 -1 -1 -1 -1\n",
"output": "9\n"
},
{
"input": "4\n0 0 0 0 0 -1 1\n",
"output": "2\n"
},
{
"input": "3\n-2 3 4 5 6\n",
"output": "20\n"
},
{
"input": "19\n-150 -962 -857 346 257 898 675 629 -104 -105 560 -525 -64 282 647 -341 -781 400 -80 830 360 877 -751 -1 -392 960 989 935 777 -509 -614 -331 301 -305 587 -284 936\n",
"output": "19402\n"
},
{
"input": "2\n-1 -1 1\n",
"output": "3\n"
},
{
"input": "10\n86 -619 547 620 -383 -928 945 -253 835 -36 373 925 -705 -64 -577 -386 318 535 528\n",
"output": "9591\n"
},
{
"input": "19\n-550 109 141 -201 -922 45 926 6 -245 -846 -695 572 -788 -963 -253 161 107 879 78 551 486 563 -533 -376 615 627 913 411 -494 -101 -45 -877 -416 736 255 -810 -491\n",
"output": "17787\n"
},
{
"input": "5\n0 0 0 0 0 -1 -1 -1 -1\n",
"output": "4\n"
},
{
"input": "5\n-10 -100 -100 -10 -20 -5 -1 2 3\n",
"output": "251\n"
},
{
"input": "3\n-1 1 1 1 1\n",
"output": "5\n"
},
{
"input": "34\n-944 484 -717 515 -827 765 -746 763 -333 184 979 101 -524 199 624 -200 -903 -488 -376 543 924 18 958 55 -826 -12 419 497 580 -286 25 -512 -858 214 271 58 897 178 -644 -598 -41 -737 156 -765 -182 702 748 -113 -335 282 -456 -860 688 -306 614 -995 -876 -437 684 -353 -711 363 -545 -324 -418 840 472\n",
"output": "34048\n"
},
{
"input": "3\n-100 100 100 100 100\n",
"output": "500\n"
},
{
"input": "22\n697 556 -538 879 -623 73 -293 -401 -491 -7 -144 853 -319 395 785 248 -585 0 -420 -830 -720 75 411 -397 746 828 -83 -833 -847 709 181 967 314 -633 -322 415 -450 433 -459 438 508 -870 -949\n",
"output": "21725\n"
},
{
"input": "3\n-1 -1 -1 -1 -1\n",
"output": "5\n"
},
{
"input": "3\n-959 -542 -669 -513 160\n",
"output": "2843\n"
},
{
"input": "7\n-236 533 869 903 655 -714 27 890 -311 800 307 -682 665\n",
"output": "7592\n"
},
{
"input": "4\n0 0 0 0 0 -1 -1\n",
"output": "2\n"
},
{
"input": "38\n-593 446 -769 -498 957 958 -510 515 257 -75 -145 -942 -307 965 -749 110 -793 -457 812 -679 38 -803 274 -932 954 -923 -300 -528 -238 -624 801 939 -462 -894 679 102 886 62 -212 966 -877 942 -325 -900 -997 -65 783 723 353 -972 172 -234 197 69 885 964 71 328 -144 -860 -712 -848 -185 672 622 -364 -403 308 -309 -316 -935 -889 -757 -346 528\n",
"output": "42209\n"
},
{
"input": "4\n-1 -1 -1 0 1 1 1\n",
"output": "6\n"
},
{
"input": "8\n-338 134 708 -761 -135 535 631 -354 -259 -973 -147 -281 737 516 -222\n",
"output": "6463\n"
}
] | code_contests | python | 0.1 | 4aef6d73638c6af34100d25cc69e0b5f |
Cucumber boy is fan of Kyubeat, a famous music game.
Kyubeat has 16 panels for playing arranged in 4 × 4 table. When a panel lights up, he has to press that panel.
Each panel has a timing to press (the preffered time when a player should press it), and Cucumber boy is able to press at most k panels in a time with his one hand. Cucumber boy is trying to press all panels in perfect timing, that is he wants to press each panel exactly in its preffered time. If he cannot press the panels with his two hands in perfect timing, his challenge to press all the panels in perfect timing will fail.
You are given one scene of Kyubeat's panel from the music Cucumber boy is trying. Tell him is he able to press all the panels in perfect timing.
Input
The first line contains a single integer k (1 ≤ k ≤ 5) — the number of panels Cucumber boy can press with his one hand.
Next 4 lines contain 4 characters each (digits from 1 to 9, or period) — table of panels. If a digit i was written on the panel, it means the boy has to press that panel in time i. If period was written on the panel, he doesn't have to press that panel.
Output
Output "YES" (without quotes), if he is able to press all the panels in perfect timing. If not, output "NO" (without quotes).
Examples
Input
1
.135
1247
3468
5789
Output
YES
Input
5
..1.
1111
..1.
..1.
Output
YES
Input
1
....
12.1
.2..
.2..
Output
NO
Note
In the third sample boy cannot press all panels in perfect timing. He can press all the panels in timing in time 1, but he cannot press the panels in time 2 in timing with his two hands.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
memo = {}
for _ in range(4):
s = input()
for i in s:
if i != '.':
if i not in memo:
memo[i] = 1
else:
memo[i] += 1
res = True
for k, v in memo.items():
if v > n*2:
res = False
if res:
print("YES")
else:
print("NO")
| python | code_algorithm | [
{
"input": "5\n..1.\n1111\n..1.\n..1.\n",
"output": "YES\n"
},
{
"input": "1\n.135\n1247\n3468\n5789\n",
"output": "YES\n"
},
{
"input": "1\n....\n12.1\n.2..\n.2..\n",
"output": "NO\n"
},
{
"input": "4\n7777\n..7.\n.7..\n7...\n",
"output": "YES\n"
},
{
"input": "2\n8888\n8888\n8888\n8888\n",
"output": "NO\n"
},
{
"input": "4\n1111\n1221\n1221\n1111\n",
"output": "NO\n"
},
{
"input": "4\n...1\n..2.\n.3..\n4...\n",
"output": "YES\n"
},
{
"input": "1\n....\n....\n....\n....\n",
"output": "YES\n"
},
{
"input": "5\n4.4.\n4.4.\n4444\n..4.\n",
"output": "YES\n"
},
{
"input": "5\n9999\n9999\n9999\n9999\n",
"output": "NO\n"
},
{
"input": "4\n4.4.\n4.4.\n4444\n..4.\n",
"output": "NO\n"
},
{
"input": "1\n6981\n.527\n4163\n2345\n",
"output": "YES\n"
},
{
"input": "2\n1131\n4412\n2569\n3478\n",
"output": "YES\n"
},
{
"input": "1\n..1.\n..1.\n..1.\n..1.\n",
"output": "NO\n"
},
{
"input": "2\n4444\n3333\n2222\n1111\n",
"output": "YES\n"
},
{
"input": "2\n1.1.\n.1.1\n2.2.\n.222\n",
"output": "NO\n"
},
{
"input": "1\n9875\n8643\n7421\n531.\n",
"output": "YES\n"
},
{
"input": "2\n1...\n.1..\n..1.\n...1\n",
"output": "YES\n"
},
{
"input": "1\n1122\n3344\n5588\n6699\n",
"output": "YES\n"
},
{
"input": "5\n3141\n5926\n5358\n9793\n",
"output": "YES\n"
},
{
"input": "3\n2123\n1232\n2321\n3213\n",
"output": "NO\n"
},
{
"input": "3\n1.1.\n.1.1\n1.1.\n.1.1\n",
"output": "NO\n"
},
{
"input": "3\n7777\n..7.\n.7..\n7...\n",
"output": "NO\n"
},
{
"input": "5\n1222\n2221\n2221\n1122\n",
"output": "NO\n"
},
{
"input": "1\n1..2\n.3.4\n567.\n.89.\n",
"output": "YES\n"
},
{
"input": "1\n....\n5..5\n6..6\n7..7\n",
"output": "YES\n"
},
{
"input": "5\n5454\n4343\n3232\n2121\n",
"output": "YES\n"
}
] | code_contests | python | 1 | f7e08186392f3ba38877233c8d35a58d |
You've got array a[1], a[2], ..., a[n], consisting of n integers. Count the number of ways to split all the elements of the array into three contiguous parts so that the sum of elements in each part is the same.
More formally, you need to find the number of such pairs of indices i, j (2 ≤ i ≤ j ≤ n - 1), that <image>.
Input
The first line contains integer n (1 ≤ n ≤ 5·105), showing how many numbers are in the array. The second line contains n integers a[1], a[2], ..., a[n] (|a[i]| ≤ 109) — the elements of array a.
Output
Print a single integer — the number of ways to split the array into three parts with the same sum.
Examples
Input
5
1 2 3 0 3
Output
2
Input
4
0 1 -1 0
Output
1
Input
2
4 1
Output
0
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def NoW(xs):
if sum(xs) % 3 != 0:
return 0
else:
part = sum(xs) // 3
ci = ret = 0
acum = xs[0]
for i, x in enumerate(xs[1:]):
if acum == 2*part:
# print("2. x=",x)
ret += ci
if acum == part:
# print("1. x=",x)
ci += 1
acum += x
return ret
input()
xs = list(map(int, input().split()))
print(NoW(xs)) | python | code_algorithm | [
{
"input": "2\n4 1\n",
"output": "0\n"
},
{
"input": "4\n0 1 -1 0\n",
"output": "1\n"
},
{
"input": "5\n1 2 3 0 3\n",
"output": "2\n"
},
{
"input": "5\n1 1 1 1 1\n",
"output": "0\n"
},
{
"input": "4\n0 2 -1 2\n",
"output": "0\n"
},
{
"input": "9\n0 0 0 0 0 0 0 0 0\n",
"output": "28\n"
},
{
"input": "100\n1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1\n",
"output": "2030\n"
},
{
"input": "2\n0 0\n",
"output": "0\n"
},
{
"input": "3\n6 -3 6\n",
"output": "0\n"
},
{
"input": "8\n-1 -1 -1 -1 -1 -1 -1 -1\n",
"output": "0\n"
},
{
"input": "1\n1\n",
"output": "0\n"
},
{
"input": "10\n2 5 -2 2 -3 -2 3 5 -5 -2\n",
"output": "0\n"
},
{
"input": "5\n3 3 -3 3 3\n",
"output": "3\n"
},
{
"input": "6\n1000000000 1000000000 1000000000 1000000000 1000000000 1000000000\n",
"output": "1\n"
},
{
"input": "4\n1 -1 0 0\n",
"output": "1\n"
},
{
"input": "10\n1 0 0 0 1 1 1 0 1 1\n",
"output": "2\n"
},
{
"input": "10\n-2 2 -2 0 -2 -1 1 -1 2 0\n",
"output": "0\n"
},
{
"input": "3\n1 2 3\n",
"output": "0\n"
}
] | code_contests | python | 0.2 | ae35b7bd5c7a0bab2f4f217350ae5713 |
Uncle Fyodor, Matroskin the Cat and Sharic the Dog live their simple but happy lives in Prostokvashino. Sometimes they receive parcels from Uncle Fyodor’s parents and sometimes from anonymous benefactors, in which case it is hard to determine to which one of them the package has been sent. A photographic rifle is obviously for Sharic who loves hunting and fish is for Matroskin, but for whom was a new video game console meant? Every one of the three friends claimed that the present is for him and nearly quarreled. Uncle Fyodor had an idea how to solve the problem justly: they should suppose that the console was sent to all three of them and play it in turns. Everybody got relieved but then yet another burning problem popped up — who will play first? This time Matroskin came up with a brilliant solution, suggesting the most fair way to find it out: play rock-paper-scissors together. The rules of the game are very simple. On the count of three every player shows a combination with his hand (or paw). The combination corresponds to one of three things: a rock, scissors or paper. Some of the gestures win over some other ones according to well-known rules: the rock breaks the scissors, the scissors cut the paper, and the paper gets wrapped over the stone. Usually there are two players. Yet there are three friends, that’s why they decided to choose the winner like that: If someone shows the gesture that wins over the other two players, then that player wins. Otherwise, another game round is required. Write a program that will determine the winner by the gestures they have shown.
Input
The first input line contains the name of the gesture that Uncle Fyodor showed, the second line shows which gesture Matroskin showed and the third line shows Sharic’s gesture.
Output
Print "F" (without quotes) if Uncle Fyodor wins. Print "M" if Matroskin wins and "S" if Sharic wins. If it is impossible to find the winner, print "?".
Examples
Input
rock
rock
rock
Output
?
Input
paper
rock
rock
Output
F
Input
scissors
rock
rock
Output
?
Input
scissors
paper
rock
Output
?
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | I = lambda: int(input())
IL = lambda: list(map(int, input().split()))
L = [input()[0] for i in '123']
gt = {'r': 'rp', 'p': 'ps', 's': 'sr'}
print('F' if L[1] not in gt[L[0]] and L[2] not in gt[L[0]] else
'M' if L[0] not in gt[L[1]] and L[2] not in gt[L[1]] else
'S' if L[0] not in gt[L[2]] and L[1] not in gt[L[2]] else
'?') | python | code_algorithm | [
{
"input": "scissors\nrock\nrock\n",
"output": "?\n"
},
{
"input": "scissors\npaper\nrock\n",
"output": "?\n"
},
{
"input": "rock\nrock\nrock\n",
"output": "?\n"
},
{
"input": "paper\nrock\nrock\n",
"output": "F\n"
},
{
"input": "rock\npaper\nrock\n",
"output": "M\n"
},
{
"input": "scissors\nscissors\nrock\n",
"output": "S\n"
},
{
"input": "rock\nscissors\npaper\n",
"output": "?\n"
},
{
"input": "rock\npaper\nscissors\n",
"output": "?\n"
},
{
"input": "scissors\nscissors\nscissors\n",
"output": "?\n"
},
{
"input": "scissors\nscissors\npaper\n",
"output": "?\n"
},
{
"input": "scissors\npaper\npaper\n",
"output": "F\n"
},
{
"input": "rock\nscissors\nrock\n",
"output": "?\n"
},
{
"input": "scissors\nrock\nscissors\n",
"output": "M\n"
},
{
"input": "paper\npaper\nrock\n",
"output": "?\n"
},
{
"input": "paper\nscissors\nscissors\n",
"output": "?\n"
},
{
"input": "rock\nscissors\nscissors\n",
"output": "F\n"
},
{
"input": "scissors\npaper\nscissors\n",
"output": "?\n"
},
{
"input": "paper\nrock\npaper\n",
"output": "?\n"
},
{
"input": "rock\npaper\npaper\n",
"output": "?\n"
},
{
"input": "paper\npaper\npaper\n",
"output": "?\n"
},
{
"input": "scissors\nrock\npaper\n",
"output": "?\n"
},
{
"input": "rock\nrock\npaper\n",
"output": "S\n"
},
{
"input": "paper\nscissors\nrock\n",
"output": "?\n"
},
{
"input": "paper\nscissors\npaper\n",
"output": "M\n"
},
{
"input": "rock\nrock\nscissors\n",
"output": "?\n"
},
{
"input": "paper\npaper\nscissors\n",
"output": "S\n"
},
{
"input": "paper\nrock\nscissors\n",
"output": "?\n"
}
] | code_contests | python | 0.6 | f3d88af07986145b5eb78ff60e6a0336 |
All cities of Lineland are located on the Ox coordinate axis. Thus, each city is associated with its position xi — a coordinate on the Ox axis. No two cities are located at a single point.
Lineland residents love to send letters to each other. A person may send a letter only if the recipient lives in another city (because if they live in the same city, then it is easier to drop in).
Strange but true, the cost of sending the letter is exactly equal to the distance between the sender's city and the recipient's city.
For each city calculate two values mini and maxi, where mini is the minimum cost of sending a letter from the i-th city to some other city, and maxi is the the maximum cost of sending a letter from the i-th city to some other city
Input
The first line of the input contains integer n (2 ≤ n ≤ 105) — the number of cities in Lineland. The second line contains the sequence of n distinct integers x1, x2, ..., xn ( - 109 ≤ xi ≤ 109), where xi is the x-coordinate of the i-th city. All the xi's are distinct and follow in ascending order.
Output
Print n lines, the i-th line must contain two integers mini, maxi, separated by a space, where mini is the minimum cost of sending a letter from the i-th city, and maxi is the maximum cost of sending a letter from the i-th city.
Examples
Input
4
-5 -2 2 7
Output
3 12
3 9
4 7
5 12
Input
2
-1 1
Output
2 2
2 2
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
a = [int(i) for i in input().split()]
for i in range(n):
print(min(abs(a[i]-a[(i+1)%n]), abs(a[i]-a[i-1])), max(abs(a[i]-a[0]), abs(a[i]-a[-1]))) | python | code_algorithm | [
{
"input": "2\n-1 1\n",
"output": "2 2\n2 2\n"
},
{
"input": "4\n-5 -2 2 7\n",
"output": "3 12\n3 9\n4 7\n5 12\n"
},
{
"input": "3\n-1000000000 0 1000000000\n",
"output": "1000000000 2000000000\n1000000000 1000000000\n1000000000 2000000000\n"
},
{
"input": "5\n-2 -1 0 1 2\n",
"output": "1 4\n1 3\n1 2\n1 3\n1 4\n"
},
{
"input": "10\n-876779400 -829849659 -781819137 -570920213 18428128 25280705 121178189 219147240 528386329 923854124\n",
"output": "46929741 1800633524\n46929741 1753703783\n48030522 1705673261\n210898924 1494774337\n6852577 905425996\n6852577 902060105\n95897484 997957589\n97969051 1095926640\n309239089 1405165729\n395467795 1800633524\n"
},
{
"input": "3\n-1 0 1\n",
"output": "1 2\n1 1\n1 2\n"
},
{
"input": "4\n-1 0 1 3\n",
"output": "1 4\n1 3\n1 2\n2 4\n"
},
{
"input": "10\n-857422304 -529223472 82412729 145077145 188538640 265299215 527377039 588634631 592896147 702473706\n",
"output": "328198832 1559896010\n328198832 1231697178\n62664416 939835033\n43461495 1002499449\n43461495 1045960944\n76760575 1122721519\n61257592 1384799343\n4261516 1446056935\n4261516 1450318451\n109577559 1559896010\n"
},
{
"input": "3\n-1000000000 999999999 1000000000\n",
"output": "1999999999 2000000000\n1 1999999999\n1 2000000000\n"
},
{
"input": "50\n-50000 -49459 -48875 -48456 -48411 -48096 -47901 -47500 -47150 -46808 -46687 -46679 -46337 -45747 -45604 -45194 -44752 -44242 -44231 -44122 -43636 -43274 -42916 -42881 -42386 -42095 -41830 -41618 -41145 -40897 -40534 -40007 -39761 -39389 -39104 -38909 -38630 -38561 -38364 -38255 -38214 -38084 -37959 -37607 -37202 -36890 -36681 -36136 -36123 -35886\n",
"output": "541 14114\n541 13573\n419 12989\n45 12570\n45 12525\n195 12210\n195 12015\n350 11614\n342 11264\n121 10922\n8 10801\n8 10793\n342 10451\n143 9861\n143 9718\n410 9308\n442 8866\n11 8356\n11 8345\n109 8236\n362 7750\n358 7388\n35 7084\n35 7119\n291 7614\n265 7905\n212 8170\n212 8382\n248 8855\n248 9103\n363 9466\n246 9993\n246 10239\n285 10611\n195 10896\n195 11091\n69 11370\n69 11439\n109 11636\n41 11745\n41 11786\n125 11916\n125 12041\n352 12393\n312 12798\n209 13110\n209 13319\n13 13864\n13 13877\n237 14114\n"
},
{
"input": "30\n-15 1 21 25 30 40 59 60 77 81 97 100 103 123 139 141 157 158 173 183 200 215 226 231 244 256 267 279 289 292\n",
"output": "16 307\n16 291\n4 271\n4 267\n5 262\n10 252\n1 233\n1 232\n4 215\n4 211\n3 195\n3 192\n3 189\n16 169\n2 154\n2 156\n1 172\n1 173\n10 188\n10 198\n15 215\n11 230\n5 241\n5 246\n12 259\n11 271\n11 282\n10 294\n3 304\n3 307\n"
},
{
"input": "10\n1 10 12 15 59 68 130 912 1239 9123\n",
"output": "9 9122\n2 9113\n2 9111\n3 9108\n9 9064\n9 9055\n62 8993\n327 8211\n327 7884\n7884 9122\n"
},
{
"input": "5\n-1000000000 -999999999 -999999998 -999999997 -999999996\n",
"output": "1 4\n1 3\n1 2\n1 3\n1 4\n"
},
{
"input": "3\n-10000 1 10000\n",
"output": "10001 20000\n9999 10001\n9999 20000\n"
},
{
"input": "5\n-2 -1 0 1 3\n",
"output": "1 5\n1 4\n1 3\n1 3\n2 5\n"
},
{
"input": "10\n-1000000000 -999999999 -999999997 -999999996 -999999995 -999999994 -999999992 -999999990 -999999988 -999999986\n",
"output": "1 14\n1 13\n1 11\n1 10\n1 9\n1 8\n2 8\n2 10\n2 12\n2 14\n"
},
{
"input": "2\n-1000000000 1000000000\n",
"output": "2000000000 2000000000\n2000000000 2000000000\n"
}
] | code_contests | python | 0.8 | 6363bae5d8be0f9b3928910084fedecc |
Recently, Duff has been practicing weight lifting. As a hard practice, Malek gave her a task. He gave her a sequence of weights. Weight of i-th of them is 2wi pounds. In each step, Duff can lift some of the remaining weights and throw them away. She does this until there's no more weight left. Malek asked her to minimize the number of steps.
<image>
Duff is a competitive programming fan. That's why in each step, she can only lift and throw away a sequence of weights 2a1, ..., 2ak if and only if there exists a non-negative integer x such that 2a1 + 2a2 + ... + 2ak = 2x, i. e. the sum of those numbers is a power of two.
Duff is a competitive programming fan, but not a programmer. That's why she asked for your help. Help her minimize the number of steps.
Input
The first line of input contains integer n (1 ≤ n ≤ 106), the number of weights.
The second line contains n integers w1, ..., wn separated by spaces (0 ≤ wi ≤ 106 for each 1 ≤ i ≤ n), the powers of two forming the weights values.
Output
Print the minimum number of steps in a single line.
Examples
Input
5
1 1 2 3 3
Output
2
Input
4
0 1 2 3
Output
4
Note
In the first sample case: One optimal way would be to throw away the first three in the first step and the rest in the second step. Also, it's not possible to do it in one step because their sum is not a power of two.
In the second sample case: The only optimal way is to throw away one weight in each step. It's not possible to do it in less than 4 steps because there's no subset of weights with more than one weight and sum equal to a power of two.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import *
import sys
import math
from functools import reduce
def factors(n):
return set(reduce(list.__add__,([i, n//i] for i in range(1, int(n**0.5) + 1) if n % i == 0)))
def li():return [int(i) for i in input().rstrip('\n').split(' ')]
def st():return input().rstrip('\n')
def val():return int(input())
def stli():return [int(i) for i in input().rstrip('\n')]
def persquare(x):
return 1 if x**0.5 == int(x**0.5) else 0
n = val()
l = sorted(li())
currlist = [0 for i in range(10**6 + 22)]
for i in l:
currlist[i] += 1
tot = 0
# print(currlist[:10])
for i in range(10**6 + 21):
while currlist[i]>1:
temp = 2**int(math.log2(currlist[i]))
currlist[i] -= temp
currlist[i + 1] += temp//2
# print(currlist[:10])
print(sum(currlist)) | python | code_algorithm | [
{
"input": "5\n1 1 2 3 3\n",
"output": "2\n"
},
{
"input": "4\n0 1 2 3\n",
"output": "4\n"
},
{
"input": "13\n92 194 580495 0 10855 41704 13 96429 33 213 0 92 140599\n",
"output": "11\n"
},
{
"input": "1\n120287\n",
"output": "1\n"
},
{
"input": "35\n130212 3176 77075 8071 18 1369 7539 1683 80757 1847 0 1374 122 8524 4 2 21333 270264 4 9254 151921 0 1 33596 73002 54382 0 1 29233 75952 15 38892 1877 6167 4\n",
"output": "31\n"
},
{
"input": "2\n95745 95745\n",
"output": "1\n"
},
{
"input": "35\n0 0 298 0 0 0 0 0 689063 65442 0 984598 2054 43668 0 369 0 2054 0 996220 0 16327 369 0 996220 0 0 0 4693 2054 348 0 118 0 0\n",
"output": "16\n"
},
{
"input": "2\n28288 0\n",
"output": "2\n"
},
{
"input": "13\n688743 688743 1975 688743 688743 688743 688743 688743 688743 0 0 688743 688743\n",
"output": "4\n"
},
{
"input": "35\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "3\n"
},
{
"input": "100\n196 1681 196 0 61 93 196 196 196 196 196 0 0 96 18 1576 0 93 666463 18 93 1 1278 8939 93 196 196 1278 3 0 67416 869956 10 56489 196 745 39 783 196 8939 196 81 69634 4552 39 3 14 20 25 8 10 4 7302 0 19579 20 1140 15990 7302 0 19579 4142 11 1354 75252 93 311 1278 0 79475 10 75252 93 7302 0 81 408441 19579 10 39 19 37748 4364 31135 47700 105818 47700 10 4142 543356 3 30647 45917 60714 8939 18 22925 7302 93 75252\n",
"output": "59\n"
}
] | code_contests | python | 0.1 | 91916225290388c310f56a118427d7b1 |
Sasha lives in a big happy family. At the Man's Day all the men of the family gather to celebrate it following their own traditions. There are n men in Sasha's family, so let's number them with integers from 1 to n.
Each man has at most one father but may have arbitrary number of sons.
Man number A is considered to be the ancestor of the man number B if at least one of the following conditions is satisfied:
* A = B;
* the man number A is the father of the man number B;
* there is a man number C, such that the man number A is his ancestor and the man number C is the father of the man number B.
Of course, if the man number A is an ancestor of the man number B and A ≠ B, then the man number B is not an ancestor of the man number A.
The tradition of the Sasha's family is to give gifts at the Man's Day. Because giving gifts in a normal way is boring, each year the following happens.
1. A list of candidates is prepared, containing some (possibly all) of the n men in some order.
2. Each of the n men decides to give a gift.
3. In order to choose a person to give a gift to, man A looks through the list and picks the first man B in the list, such that B is an ancestor of A and gives him a gift. Note that according to definition it may happen that a person gives a gift to himself.
4. If there is no ancestor of a person in the list, he becomes sad and leaves the celebration without giving a gift to anyone.
This year you have decided to help in organizing celebration and asked each of the n men, who do they want to give presents to (this person is chosen only among ancestors). Are you able to make a list of candidates, such that all the wishes will be satisfied if they give gifts according to the process described above?
Input
In the first line of the input two integers n and m (0 ≤ m < n ≤ 100 000) are given — the number of the men in the Sasha's family and the number of family relations in it respectively.
The next m lines describe family relations: the (i + 1)th line consists of pair of integers pi and qi (1 ≤ pi, qi ≤ n, pi ≠ qi) meaning that the man numbered pi is the father of the man numbered qi. It is guaranteed that every pair of numbers appears at most once, that among every pair of two different men at least one of them is not an ancestor of another and that every man has at most one father.
The next line contains n integers a1, a2, ..., an (1 ≤ ai ≤ n), ith of which means that the man numbered i wants to give a gift to the man numbered ai. It is guaranteed that for every 1 ≤ i ≤ n the man numbered ai is an ancestor of the man numbered i.
Output
Print an integer k (1 ≤ k ≤ n) — the number of the men in the list of candidates, in the first line.
Print then k pairwise different positive integers not exceeding n — the numbers of the men in the list in an order satisfying every of the men's wishes, one per line.
If there are more than one appropriate lists, print any of them. If there is no appropriate list print - 1 in the only line.
Examples
Input
3 2
1 2
2 3
1 2 1
Output
-1
Input
4 2
1 2
3 4
1 2 3 3
Output
3
2
1
3
Note
The first sample explanation:
* if there would be no 1 in the list then the first and the third man's wishes would not be satisfied (a1 = a3 = 1);
* if there would be no 2 in the list then the second man wish would not be satisfied (a2 = 2);
* if 1 would stay before 2 in the answer then the second man would have to give his gift to the first man, but he wants to give it to himself (a2 = 2).
* if, at the other hand, the man numbered 2 would stay before the man numbered 1, then the third man would have to give his gift to the second man, but not to the first (a3 = 1).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | # [https://codeforces.com/contest/681/submission/37694242 <- https://codeforces.com/contest/681/status/D <- https://codeforces.com/contest/681 <- https://codeforces.com/blog/entry/45425 <- https://codeforces.com/problemset/problem/681/D <- https://algoprog.ru/material/pc681pD]
(n, m) = map(int, input().split())
adj = [[] for _ in range(n)]
cp = [-1] * n
for i in range(m):
p, c = map(int, input().split())
adj[p - 1].append(c - 1)
cp[c - 1] = p - 1
pres = [i - 1 for i in map(int, input().split())]
level = [0] * n
from collections import deque
def bfs(v):
q = deque([v])
while q:
v = q.pop()
if cp[v] >= 0:
level[v] = level[cp[v]] + 1
for nv in adj[v]:
q.append(nv)
for i in range(n):
if cp[i] == -1:
bfs(i)
for i in range(n):
if level[i] > 0:
par = cp[i]
if pres[i] != pres[par] and level[pres[i]] <= level[par]:
print(-1)
exit()
pres = list(set(pres))
pres = sorted(pres, key = lambda i : level[i], reverse = True)
print(len(pres))
pres = [i + 1 for i in pres]
print("\n".join(map(str, pres))) | python | code_algorithm | [
{
"input": "3 2\n1 2\n2 3\n1 2 1\n",
"output": "-1\n"
},
{
"input": "4 2\n1 2\n3 4\n1 2 3 3\n",
"output": "3\n2\n1\n3\n"
},
{
"input": "1 0\n1\n",
"output": "1\n1\n"
},
{
"input": "4 3\n4 3\n3 2\n2 1\n3 4 4 4\n",
"output": "-1\n"
},
{
"input": "4 3\n1 2\n2 3\n3 4\n1 1 1 2\n",
"output": "-1\n"
},
{
"input": "4 3\n1 2\n2 3\n3 4\n1 1 3 2\n",
"output": "-1\n"
},
{
"input": "2 1\n2 1\n1 2\n",
"output": "2\n1\n2\n"
},
{
"input": "2 1\n2 1\n2 2\n",
"output": "1\n2\n"
}
] | code_contests | python | 0 | c84be37da7ab107286c63d32ca17cbb4 |
Bear Limak examines a social network. Its main functionality is that two members can become friends (then they can talk with each other and share funny pictures).
There are n members, numbered 1 through n. m pairs of members are friends. Of course, a member can't be a friend with themselves.
Let A-B denote that members A and B are friends. Limak thinks that a network is reasonable if and only if the following condition is satisfied: For every three distinct members (X, Y, Z), if X-Y and Y-Z then also X-Z.
For example: if Alan and Bob are friends, and Bob and Ciri are friends, then Alan and Ciri should be friends as well.
Can you help Limak and check if the network is reasonable? Print "YES" or "NO" accordingly, without the quotes.
Input
The first line of the input contain two integers n and m (3 ≤ n ≤ 150 000, <image>) — the number of members and the number of pairs of members that are friends.
The i-th of the next m lines contains two distinct integers ai and bi (1 ≤ ai, bi ≤ n, ai ≠ bi). Members ai and bi are friends with each other. No pair of members will appear more than once in the input.
Output
If the given network is reasonable, print "YES" in a single line (without the quotes). Otherwise, print "NO" in a single line (without the quotes).
Examples
Input
4 3
1 3
3 4
1 4
Output
YES
Input
4 4
3 1
2 3
3 4
1 2
Output
NO
Input
10 4
4 3
5 10
8 9
1 2
Output
YES
Input
3 2
1 2
2 3
Output
NO
Note
The drawings below show the situation in the first sample (on the left) and in the second sample (on the right). Each edge represents two members that are friends. The answer is "NO" in the second sample because members (2, 3) are friends and members (3, 4) are friends, while members (2, 4) are not.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,m = map(int,input().split())
dic = {}
edges = []
from collections import Counter
def find(node):
tmp = node
while node!=dic[node]:
node = dic[node]
while tmp!=dic[tmp]:
dic[tmp],tmp=node,dic[tmp]
return node
for _ in range(m):
p1,p2 = map(int,input().split())
dic.setdefault(p1,p1)
dic.setdefault(p2,p2)
edges.append(p1)
lp = find(p1)
rp = find(p2)
if lp!=rp:
dic[rp] = lp
for k in dic:
find(k)
def judge():
counter = Counter([dic[i] for i in edges])
s = Counter(dic.values())
for k in counter:
en,nn = counter[k],s[k]
if (nn**2-nn)//2!=en:
return False
return True
if judge():
print("YES")
else:
print("NO") | python | code_algorithm | [
{
"input": "10 4\n4 3\n5 10\n8 9\n1 2\n",
"output": "YES\n"
},
{
"input": "4 4\n3 1\n2 3\n3 4\n1 2\n",
"output": "NO\n"
},
{
"input": "3 2\n1 2\n2 3\n",
"output": "NO\n"
},
{
"input": "4 3\n1 3\n3 4\n1 4\n",
"output": "YES\n"
},
{
"input": "4 5\n1 2\n1 3\n1 4\n2 3\n2 4\n",
"output": "NO\n"
},
{
"input": "6 6\n1 2\n2 3\n3 4\n4 5\n5 6\n1 6\n",
"output": "NO\n"
},
{
"input": "4 3\n1 2\n1 3\n1 4\n",
"output": "NO\n"
},
{
"input": "4 4\n1 2\n2 3\n3 4\n4 1\n",
"output": "NO\n"
},
{
"input": "5 5\n1 2\n2 3\n3 4\n4 5\n5 1\n",
"output": "NO\n"
},
{
"input": "150000 3\n150000 149999\n149998 149999\n149998 150000\n",
"output": "YES\n"
},
{
"input": "5 9\n1 2\n5 1\n3 1\n1 4\n2 4\n5 3\n5 4\n2 3\n5 2\n",
"output": "NO\n"
},
{
"input": "10 8\n10 7\n9 7\n5 7\n6 8\n3 5\n8 10\n3 4\n7 8\n",
"output": "NO\n"
},
{
"input": "3 1\n1 2\n",
"output": "YES\n"
},
{
"input": "10 5\n9 5\n1 2\n6 8\n6 3\n10 6\n",
"output": "NO\n"
},
{
"input": "20 80\n17 4\n10 1\n11 10\n17 7\n15 10\n14 15\n13 1\n18 13\n3 13\n12 7\n9 13\n10 12\n14 12\n18 11\n4 7\n10 13\n11 3\n19 8\n14 7\n10 17\n14 3\n7 11\n11 14\n19 5\n10 14\n15 17\n3 1\n9 10\n11 1\n4 1\n11 4\n9 1\n12 3\n13 7\n1 14\n11 12\n7 1\n9 12\n18 15\n17 3\n7 15\n4 10\n7 18\n7 9\n12 17\n14 18\n3 18\n18 17\n9 15\n14 4\n14 9\n9 18\n12 4\n7 10\n15 4\n4 18\n15 13\n1 12\n7 3\n13 11\n4 13\n5 8\n12 18\n12 15\n17 9\n11 15\n3 10\n18 10\n4 3\n15 3\n13 12\n9 4\n9 11\n14 17\n13 17\n3 9\n13 14\n1 17\n15 1\n17 11\n",
"output": "NO\n"
},
{
"input": "3 3\n2 3\n1 2\n1 3\n",
"output": "YES\n"
},
{
"input": "6 6\n1 2\n2 4\n4 3\n1 5\n5 6\n6 3\n",
"output": "NO\n"
},
{
"input": "3 2\n3 2\n1 3\n",
"output": "NO\n"
},
{
"input": "99 26\n64 17\n48 70\n71 50\n3 50\n9 60\n61 64\n53 50\n25 12\n3 71\n71 53\n3 53\n65 70\n9 25\n9 12\n59 56\n39 60\n64 69\n65 94\n70 94\n25 60\n60 12\n94 48\n17 69\n61 17\n65 48\n61 69\n",
"output": "NO\n"
},
{
"input": "10 15\n1 2\n1 3\n2 4\n2 5\n3 4\n3 5\n4 5\n1 6\n6 7\n6 8\n7 9\n7 10\n8 9\n8 10\n9 10\n",
"output": "NO\n"
},
{
"input": "4 4\n1 2\n1 3\n4 2\n4 3\n",
"output": "NO\n"
},
{
"input": "5 4\n1 2\n2 5\n3 4\n4 5\n",
"output": "NO\n"
},
{
"input": "4 4\n1 2\n2 3\n3 4\n1 4\n",
"output": "NO\n"
},
{
"input": "4 4\n1 2\n1 3\n2 4\n3 4\n",
"output": "NO\n"
},
{
"input": "4 2\n4 1\n2 1\n",
"output": "NO\n"
},
{
"input": "4 3\n1 2\n1 3\n3 4\n",
"output": "NO\n"
},
{
"input": "5 5\n1 4\n5 3\n5 1\n2 3\n4 5\n",
"output": "NO\n"
},
{
"input": "30 73\n25 2\n2 16\n20 12\n16 20\n7 18\n11 15\n13 11\n30 29\n16 12\n12 25\n2 1\n18 14\n9 8\n28 16\n2 9\n22 21\n1 25\n12 28\n14 7\n4 9\n26 7\n14 27\n12 2\n29 22\n1 9\n13 15\n3 10\n1 12\n8 20\n30 24\n25 20\n4 1\n4 12\n20 1\n8 4\n2 28\n25 16\n16 8\n20 4\n9 12\n21 30\n23 11\n19 6\n28 4\n29 21\n9 28\n30 10\n22 24\n25 8\n27 26\n25 4\n28 20\n9 25\n24 29\n20 9\n18 26\n1 28\n30 22\n23 15\n28 27\n8 2\n23 13\n12 8\n14 26\n16 4\n28 25\n8 1\n4 2\n9 16\n20 2\n18 27\n28 8\n27 7\n",
"output": "NO\n"
},
{
"input": "150000 10\n62562 50190\n48849 60549\n139470 18456\n21436 25159\n66845 120884\n99972 114453\n11631 99153\n62951 134848\n78114 146050\n136760 131762\n",
"output": "YES\n"
},
{
"input": "5 4\n1 2\n1 3\n1 4\n1 5\n",
"output": "NO\n"
},
{
"input": "3 0\n",
"output": "YES\n"
},
{
"input": "4 5\n1 2\n1 3\n1 4\n2 3\n3 4\n",
"output": "NO\n"
},
{
"input": "4 3\n3 1\n2 1\n3 2\n",
"output": "YES\n"
},
{
"input": "150000 0\n",
"output": "YES\n"
},
{
"input": "1000 4\n100 132\n100 164\n196 132\n196 164\n",
"output": "NO\n"
},
{
"input": "4 5\n1 2\n1 3\n2 3\n1 4\n2 4\n",
"output": "NO\n"
},
{
"input": "9 9\n1 2\n2 3\n3 4\n4 5\n5 6\n6 7\n7 8\n8 9\n9 1\n",
"output": "NO\n"
},
{
"input": "4 3\n1 2\n1 3\n2 4\n",
"output": "NO\n"
},
{
"input": "6 6\n1 2\n2 3\n3 4\n4 5\n5 6\n6 1\n",
"output": "NO\n"
},
{
"input": "10 20\n8 2\n8 3\n1 8\n9 5\n2 4\n10 1\n10 5\n7 5\n7 8\n10 7\n6 5\n3 7\n1 9\n9 8\n7 2\n2 10\n2 1\n6 4\n9 7\n4 3\n",
"output": "NO\n"
},
{
"input": "3 2\n1 2\n1 3\n",
"output": "NO\n"
},
{
"input": "6 12\n1 2\n1 4\n1 5\n1 6\n2 3\n2 5\n2 6\n3 4\n3 5\n3 6\n4 5\n4 6\n",
"output": "NO\n"
},
{
"input": "6 9\n1 4\n1 5\n1 6\n2 4\n2 5\n2 6\n3 4\n3 5\n3 6\n",
"output": "NO\n"
},
{
"input": "15 42\n8 1\n3 14\n7 14\n12 3\n7 9\n6 7\n6 12\n14 12\n3 10\n10 14\n6 3\n3 13\n13 10\n7 12\n7 2\n6 10\n11 4\n9 3\n8 4\n7 3\n2 3\n2 10\n9 13\n2 14\n6 14\n13 2\n1 4\n13 6\n7 10\n13 14\n12 10\n13 7\n12 2\n9 10\n13 12\n2 6\n9 14\n6 9\n12 9\n11 1\n2 9\n11 8\n",
"output": "YES\n"
}
] | code_contests | python | 0.9 | 0f9fbb7c21b25ff919ad665d9dd330ff |
Leha somehow found an array consisting of n integers. Looking at it, he came up with a task. Two players play the game on the array. Players move one by one. The first player can choose for his move a subsegment of non-zero length with an odd sum of numbers and remove it from the array, after that the remaining parts are glued together into one array and the game continues. The second player can choose a subsegment of non-zero length with an even sum and remove it. Loses the one who can not make a move. Who will win if both play optimally?
Input
First line of input data contains single integer n (1 ≤ n ≤ 106) — length of the array.
Next line contains n integers a1, a2, ..., an (0 ≤ ai ≤ 109).
Output
Output answer in single line. "First", if first player wins, and "Second" otherwise (without quotes).
Examples
Input
4
1 3 2 3
Output
First
Input
2
2 2
Output
Second
Note
In first sample first player remove whole array in one move and win.
In second sample first player can't make a move and lose.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | input()
for t in input().split():
if int(t) % 2:
print("First")
break
else:
print("Second") | python | code_algorithm | [
{
"input": "4\n1 3 2 3\n",
"output": "First\n"
},
{
"input": "2\n2 2\n",
"output": "Second\n"
},
{
"input": "6\n2 2 1 1 4 2\n",
"output": "First\n"
},
{
"input": "3\n1 2 2\n",
"output": "First\n"
},
{
"input": "5\n1 1 1 1 1\n",
"output": "First\n"
},
{
"input": "3\n2 1 1\n",
"output": "First\n"
},
{
"input": "4\n2 1 1 2\n",
"output": "First\n"
},
{
"input": "4\n1000000000 1000000000 1000000000 1\n",
"output": "First\n"
},
{
"input": "11\n2 2 2 2 2 1 2 2 2 2 2\n",
"output": "First\n"
},
{
"input": "2\n1 1\n",
"output": "First\n"
},
{
"input": "1\n1\n",
"output": "First\n"
},
{
"input": "1\n0\n",
"output": "Second\n"
},
{
"input": "4\n2 4 6 8\n",
"output": "Second\n"
},
{
"input": "4\n3 3 4 4\n",
"output": "First\n"
},
{
"input": "8\n2 2 2 1 1 2 2 2\n",
"output": "First\n"
},
{
"input": "3\n2 3 2\n",
"output": "First\n"
},
{
"input": "4\n2 3 3 4\n",
"output": "First\n"
},
{
"input": "4\n0 1 1 0\n",
"output": "First\n"
},
{
"input": "4\n1 1 2 2\n",
"output": "First\n"
},
{
"input": "4\n1000000000 1000000000 1000000000 99999999\n",
"output": "First\n"
},
{
"input": "5\n3 2 2 2 2\n",
"output": "First\n"
},
{
"input": "6\n4 4 3 3 4 4\n",
"output": "First\n"
},
{
"input": "5\n2 3 2 3 2\n",
"output": "First\n"
},
{
"input": "6\n2 2 1 1 2 2\n",
"output": "First\n"
},
{
"input": "5\n3 3 2 2 2\n",
"output": "First\n"
},
{
"input": "4\n1 3 3 2\n",
"output": "First\n"
},
{
"input": "4\n720074544 345031254 849487632 80870826\n",
"output": "Second\n"
},
{
"input": "4\n1 3 5 7\n",
"output": "First\n"
},
{
"input": "2\n1 2\n",
"output": "First\n"
},
{
"input": "4\n2 2 1 1\n",
"output": "First\n"
},
{
"input": "5\n3 3 4 4 4\n",
"output": "First\n"
},
{
"input": "10\n2 2 2 2 3 1 2 2 2 2\n",
"output": "First\n"
},
{
"input": "5\n1 3 2 2 2\n",
"output": "First\n"
},
{
"input": "5\n4 4 4 3 3\n",
"output": "First\n"
},
{
"input": "1\n999999999\n",
"output": "First\n"
},
{
"input": "5\n2 2 2 1 1\n",
"output": "First\n"
},
{
"input": "2\n1 999999999\n",
"output": "First\n"
},
{
"input": "3\n1 1 2\n",
"output": "First\n"
},
{
"input": "6\n2 4 3 3 4 6\n",
"output": "First\n"
},
{
"input": "6\n2 1 1 1 1 2\n",
"output": "First\n"
},
{
"input": "6\n1 2 2 2 2 1\n",
"output": "First\n"
},
{
"input": "8\n2 2 2 3 3 2 2 2\n",
"output": "First\n"
},
{
"input": "1\n2\n",
"output": "Second\n"
}
] | code_contests | python | 0.5 | d885c80ab15a677595e25b1f9e63d990 |
You are given an array a. Some element of this array ai is a local minimum iff it is strictly less than both of its neighbours (that is, ai < ai - 1 and ai < ai + 1). Also the element can be called local maximum iff it is strictly greater than its neighbours (that is, ai > ai - 1 and ai > ai + 1). Since a1 and an have only one neighbour each, they are neither local minima nor local maxima.
An element is called a local extremum iff it is either local maximum or local minimum. Your task is to calculate the number of local extrema in the given array.
Input
The first line contains one integer n (1 ≤ n ≤ 1000) — the number of elements in array a.
The second line contains n integers a1, a2, ..., an (1 ≤ ai ≤ 1000) — the elements of array a.
Output
Print the number of local extrema in the given array.
Examples
Input
3
1 2 3
Output
0
Input
4
1 5 2 5
Output
2
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
arr = [int(x) for x in input().split()]
cnt = 0
for i in range(1,n-1):
if arr[i]< arr[i-1] and arr[i] < arr[i+1]:cnt += 1
else:
if arr[i]> arr[i-1] and arr[i] > arr[i+ 1]:
cnt += 1
print(cnt) | python | code_algorithm | [
{
"input": "3\n1 2 3\n",
"output": "0\n"
},
{
"input": "4\n1 5 2 5\n",
"output": "2\n"
},
{
"input": "3\n3 2 3\n",
"output": "1\n"
},
{
"input": "1\n548\n",
"output": "0\n"
},
{
"input": "3\n1 2 1\n",
"output": "1\n"
},
{
"input": "1\n1\n",
"output": "0\n"
},
{
"input": "2\n1 1\n",
"output": "0\n"
},
{
"input": "2\n1 1000\n",
"output": "0\n"
}
] | code_contests | python | 1 | c155081cf67ccab72bad513836a90af1 |
Ehab is interested in the bitwise-xor operation and the special graphs. Mahmoud gave him a problem that combines both. He has a complete graph consisting of n vertices numbered from 0 to n - 1. For all 0 ≤ u < v < n, vertex u and vertex v are connected with an undirected edge that has weight <image> (where <image> is the [bitwise-xor operation](https://en.wikipedia.org/wiki/Bitwise_operation#XOR)). Can you find the weight of the minimum spanning tree of that graph?
You can read about complete graphs in <https://en.wikipedia.org/wiki/Complete_graph>
You can read about the minimum spanning tree in <https://en.wikipedia.org/wiki/Minimum_spanning_tree>
The weight of the minimum spanning tree is the sum of the weights on the edges included in it.
Input
The only line contains an integer n (2 ≤ n ≤ 1012), the number of vertices in the graph.
Output
The only line contains an integer x, the weight of the graph's minimum spanning tree.
Example
Input
4
Output
4
Note
In the first sample: <image> The weight of the minimum spanning tree is 1+2+1=4.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import math
n = int(input())
ans = 0
cur = 1
while cur < n:
cnt = math.ceil((n-cur)/(cur << 1))
ans += cnt*cur
cur <<= 1
print(ans)
| python | code_algorithm | [
{
"input": "4\n",
"output": "4\n"
},
{
"input": "2\n",
"output": "1\n"
},
{
"input": "7\n",
"output": "11\n"
},
{
"input": "536870913\n",
"output": "8321499136\n"
},
{
"input": "1048576\n",
"output": "10485760\n"
},
{
"input": "1024\n",
"output": "5120\n"
},
{
"input": "999999999999\n",
"output": "20140978692095\n"
},
{
"input": "123456789\n",
"output": "1680249144\n"
},
{
"input": "3\n",
"output": "3\n"
},
{
"input": "10\n",
"output": "21\n"
},
{
"input": "12000\n",
"output": "84624\n"
},
{
"input": "1000\n",
"output": "5052\n"
},
{
"input": "549755813889\n",
"output": "11269994184704\n"
},
{
"input": "549755813888\n",
"output": "10720238370816\n"
},
{
"input": "100000\n",
"output": "877968\n"
},
{
"input": "536870911\n",
"output": "7784628223\n"
},
{
"input": "1000000000000\n",
"output": "20140978692096\n"
},
{
"input": "65536\n",
"output": "524288\n"
},
{
"input": "536870912\n",
"output": "7784628224\n"
},
{
"input": "200\n",
"output": "844\n"
},
{
"input": "549755813887\n",
"output": "10720238370815\n"
},
{
"input": "23131234\n",
"output": "293058929\n"
},
{
"input": "8\n",
"output": "12\n"
},
{
"input": "6\n",
"output": "9\n"
},
{
"input": "5\n",
"output": "8\n"
}
] | code_contests | python | 0.2 | 48ad452f827841985d183e07fc90f0d5 |
You are given a set of size m with integer elements between 0 and 2^{n}-1 inclusive. Let's build an undirected graph on these integers in the following way: connect two integers x and y with an edge if and only if x \& y = 0. Here \& is the [bitwise AND operation](https://en.wikipedia.org/wiki/Bitwise_operation#AND). Count the number of connected components in that graph.
Input
In the first line of input there are two integers n and m (0 ≤ n ≤ 22, 1 ≤ m ≤ 2^{n}).
In the second line there are m integers a_1, a_2, …, a_m (0 ≤ a_{i} < 2^{n}) — the elements of the set. All a_{i} are distinct.
Output
Print the number of connected components.
Examples
Input
2 3
1 2 3
Output
2
Input
5 5
5 19 10 20 12
Output
2
Note
Graph from first sample:
<image>
Graph from second sample:
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n, m = map(int, input().split())
a = set(map(int, input().split()))
y = 2 ** n
mk = [0] * (2 * y)
cur = 0
for x in a:
if mk[x]: continue
mk[x] = 1
st = [x]
def push(v):
if not mk[v]: mk[v] = 1; st.append(v)
while st:
u = st.pop()
if u < y:
push(y + u)
else:
for b in range(n):
v = u | 1 << b
push(v)
v = y - 1 - (u - y)
if v in a: push(v)
cur += 1
print(cur) | python | code_algorithm | [
{
"input": "2 3\n1 2 3\n",
"output": "2\n"
},
{
"input": "5 5\n5 19 10 20 12\n",
"output": "2\n"
},
{
"input": "6 19\n15 23 27 29 30 31 43 46 47 51 53 55 57 58 59 60 61 62 63\n",
"output": "19\n"
},
{
"input": "3 5\n3 5 0 6 7\n",
"output": "1\n"
},
{
"input": "0 1\n0\n",
"output": "1\n"
},
{
"input": "1 1\n0\n",
"output": "1\n"
},
{
"input": "1 1\n1\n",
"output": "1\n"
},
{
"input": "6 22\n21 23 26 28 31 35 38 39 41 42 44 45 47 50 51 52 54 55 56 59 62 63\n",
"output": "20\n"
},
{
"input": "6 35\n5 7 10 11 13 14 17 18 25 27 28 29 30 31 33 35 36 37 39 40 41 43 46 47 50 52 55 56 57 58 59 60 61 62 63\n",
"output": "13\n"
},
{
"input": "6 30\n3 8 13 16 18 19 21 22 24 25 26 28 29 31 33 42 44 46 49 50 51 53 54 57 58 59 60 61 62 63\n",
"output": "10\n"
}
] | code_contests | python | 1 | 9a0a458ae9e8984522dd9c75cfb33ac7 |
There is a rectangular grid of size n × m. Each cell has a number written on it; the number on the cell (i, j) is a_{i, j}. Your task is to calculate the number of paths from the upper-left cell (1, 1) to the bottom-right cell (n, m) meeting the following constraints:
* You can move to the right or to the bottom only. Formally, from the cell (i, j) you may move to the cell (i, j + 1) or to the cell (i + 1, j). The target cell can't be outside of the grid.
* The xor of all the numbers on the path from the cell (1, 1) to the cell (n, m) must be equal to k (xor operation is the bitwise exclusive OR, it is represented as '^' in Java or C++ and "xor" in Pascal).
Find the number of such paths in the given grid.
Input
The first line of the input contains three integers n, m and k (1 ≤ n, m ≤ 20, 0 ≤ k ≤ 10^{18}) — the height and the width of the grid, and the number k.
The next n lines contain m integers each, the j-th element in the i-th line is a_{i, j} (0 ≤ a_{i, j} ≤ 10^{18}).
Output
Print one integer — the number of paths from (1, 1) to (n, m) with xor sum equal to k.
Examples
Input
3 3 11
2 1 5
7 10 0
12 6 4
Output
3
Input
3 4 2
1 3 3 3
0 3 3 2
3 0 1 1
Output
5
Input
3 4 1000000000000000000
1 3 3 3
0 3 3 2
3 0 1 1
Output
0
Note
All the paths from the first example:
* (1, 1) → (2, 1) → (3, 1) → (3, 2) → (3, 3);
* (1, 1) → (2, 1) → (2, 2) → (2, 3) → (3, 3);
* (1, 1) → (1, 2) → (2, 2) → (3, 2) → (3, 3).
All the paths from the second example:
* (1, 1) → (2, 1) → (3, 1) → (3, 2) → (3, 3) → (3, 4);
* (1, 1) → (2, 1) → (2, 2) → (3, 2) → (3, 3) → (3, 4);
* (1, 1) → (2, 1) → (2, 2) → (2, 3) → (2, 4) → (3, 4);
* (1, 1) → (1, 2) → (2, 2) → (2, 3) → (3, 3) → (3, 4);
* (1, 1) → (1, 2) → (1, 3) → (2, 3) → (3, 3) → (3, 4).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import*
n, m, k = map(int, input().split())
b = [[int(v) for v in input().split()] for _ in range(n)]
if m < n:
a = [[b[j][i] for j in range(n)] for i in range(m)]
b = a
m, n = n, m
cntrs = [Counter() for _ in range(n)]
d = (n + m-1) // 2
for i in range(1<<d):
ones = bin(i).count('1')
z = d - ones
if ones >= n or z >= m: continue
xor = b[0][0]
x, y = 0, 0
for j in range(d):
if i&(1<<j):
x += 1
else:
y += 1
xor ^= b[x][y]
cntrs[x][xor] += 1
sm = 0
sleft = n + m - 2 - d
for i in range(1<<sleft):
ones = bin(i).count('1')
z = sleft - ones
if ones >= n or z >= m: continue
xor = b[n-1][m-1]
x, y = n-1, m-1
for j in range(sleft):
if i&(1<<j):
x -= 1
else:
y -= 1
xor ^= b[x][y]
xor ^= b[x][y] ^ k
sm += cntrs[x][xor]
print(sm) | python | code_algorithm | [
{
"input": "3 4 1000000000000000000\n1 3 3 3\n0 3 3 2\n3 0 1 1\n",
"output": "0\n"
},
{
"input": "3 3 11\n2 1 5\n7 10 0\n12 6 4\n",
"output": "3\n"
},
{
"input": "3 4 2\n1 3 3 3\n0 3 3 2\n3 0 1 1\n",
"output": "5\n"
},
{
"input": "1 1 982347923479\n1\n",
"output": "0\n"
},
{
"input": "2 10 2047\n1 2 4 8 16 32 64 128 256 512\n2 4 8 16 32 64 128 256 512 1024\n",
"output": "10\n"
},
{
"input": "1 1 1\n1\n",
"output": "1\n"
},
{
"input": "20 1 1048575\n1\n2\n4\n8\n16\n32\n64\n128\n256\n512\n1024\n2048\n4096\n8192\n16384\n32768\n65536\n131072\n262144\n524288\n",
"output": "1\n"
},
{
"input": "10 1 1023\n1\n2\n4\n8\n16\n32\n64\n128\n256\n512\n",
"output": "1\n"
},
{
"input": "1 20 1048575\n1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288\n",
"output": "1\n"
},
{
"input": "10 10 524287\n1 2 4 8 16 32 64 128 256 512\n2 4 8 16 32 64 128 256 512 1024\n4 8 16 32 64 128 256 512 1024 2048\n8 16 32 64 128 256 512 1024 2048 4096\n16 32 64 128 256 512 1024 2048 4096 8192\n32 64 128 256 512 1024 2048 4096 8192 16384\n64 128 256 512 1024 2048 4096 8192 16384 32768\n128 256 512 1024 2048 4096 8192 16384 32768 65536\n256 512 1024 2048 4096 8192 16384 32768 65536 131072\n512 1024 2048 4096 8192 16384 32768 65536 131072 262144\n",
"output": "48620\n"
},
{
"input": "1 1 1000000000000000000\n1000000000000000000\n",
"output": "1\n"
},
{
"input": "1 2 3\n1 2\n",
"output": "1\n"
},
{
"input": "1 10 1023\n1 2 4 8 16 32 64 128 256 512\n",
"output": "1\n"
},
{
"input": "2 2 7\n1 2\n2 4\n",
"output": "2\n"
},
{
"input": "1 1 1000000000000000000\n999999999999999999\n",
"output": "0\n"
},
{
"input": "10 2 2047\n1 2\n2 4\n4 8\n8 16\n16 32\n32 64\n64 128\n128 256\n256 512\n512 1024\n",
"output": "10\n"
},
{
"input": "1 2 1\n1 1\n",
"output": "0\n"
},
{
"input": "2 20 2097151\n1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288\n2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 32768 65536 131072 262144 524288 1048576\n",
"output": "20\n"
},
{
"input": "20 2 2097151\n1 2\n2 4\n4 8\n8 16\n16 32\n32 64\n64 128\n128 256\n256 512\n512 1024\n1024 2048\n2048 4096\n4096 8192\n8192 16384\n16384 32768\n32768 65536\n65536 131072\n131072 262144\n262144 524288\n524288 1048576\n",
"output": "20\n"
},
{
"input": "2 1 3\n1\n2\n",
"output": "1\n"
}
] | code_contests | python | 0.4 | 1fe1d3c01ae05cf05fa5310fb3ab14a1 |
You are given an undirected graph consisting of n vertices. A number is written on each vertex; the number on vertex i is a_i. Initially there are no edges in the graph.
You may add some edges to this graph, but you have to pay for them. The cost of adding an edge between vertices x and y is a_x + a_y coins. There are also m special offers, each of them is denoted by three numbers x, y and w, and means that you can add an edge connecting vertices x and y and pay w coins for it. You don't have to use special offers: if there is a pair of vertices x and y that has a special offer associated with it, you still may connect these two vertices paying a_x + a_y coins for it.
What is the minimum number of coins you have to spend to make the graph connected? Recall that a graph is connected if it's possible to get from any vertex to any other vertex using only the edges belonging to this graph.
Input
The first line contains two integers n and m (1 ≤ n ≤ 2 ⋅ 10^5, 0 ≤ m ≤ 2 ⋅ 10^5) — the number of vertices in the graph and the number of special offers, respectively.
The second line contains n integers a_1, a_2, ..., a_n (1 ≤ a_i ≤ 10^{12}) — the numbers written on the vertices.
Then m lines follow, each containing three integers x, y and w (1 ≤ x, y ≤ n, 1 ≤ w ≤ 10^{12}, x ≠ y) denoting a special offer: you may add an edge connecting vertex x and vertex y, and this edge will cost w coins.
Output
Print one integer — the minimum number of coins you have to pay to make the graph connected.
Examples
Input
3 2
1 3 3
2 3 5
2 1 1
Output
5
Input
4 0
1 3 3 7
Output
16
Input
5 4
1 2 3 4 5
1 2 8
1 3 10
1 4 7
1 5 15
Output
18
Note
In the first example it is possible to connect 1 to 2 using special offer 2, and then 1 to 3 without using any offers.
In next two examples the optimal answer may be achieved without using special offers.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n, m = map(int, input().split())
a = list(map(int, input().split()))
e = []
for _ in range(m) :
u, v, w = map(int, input().split())
e.append((u-1, v-1, w))
a = sorted(zip(a, range(n)), key = lambda x : x[0])
for i in range(1, n) :
e.append((a[0][1], a[i][1], a[0][0] + a[i][0]))
fa = list(range(n))
rk = [0] * n
def find(x) :
while fa[x] != x :
fa[x] = fa[fa[x]]
x = fa[x]
return x
def unite(u, v) :
u, v = map(find, (u, v))
if u == v : return False
if rk[u] < rk[v] : u, v = v, u
fa[v] = u
if rk[u] == rk[v] : rk[u] += 1
return True
e.sort(key = lambda x : x[2])
ans = 0
cnt = 1
for ee in e :
if cnt == n : break
if unite(ee[0], ee[1]) :
ans += ee[2]
cnt += 1
print(ans) | python | code_algorithm | [
{
"input": "5 4\n1 2 3 4 5\n1 2 8\n1 3 10\n1 4 7\n1 5 15\n",
"output": "18\n"
},
{
"input": "3 2\n1 3 3\n2 3 5\n2 1 1\n",
"output": "5\n"
},
{
"input": "4 0\n1 3 3 7\n",
"output": "16\n"
},
{
"input": "1 0\n4\n",
"output": "0\n"
},
{
"input": "10 0\n9 9 5 2 2 5 8 5 1 7\n",
"output": "61\n"
},
{
"input": "10 1\n2 2 9 7 2 3 7 7 1 1\n5 8 4\n",
"output": "45\n"
},
{
"input": "2 1\n100000000000 100000000000\n1 2 199999999999\n",
"output": "199999999999\n"
},
{
"input": "10 10\n3 4 5 10 10 9 5 4 7 8\n1 5 5\n10 3 18\n1 7 20\n7 8 20\n10 4 8\n10 2 17\n9 4 2\n7 5 16\n1 8 17\n7 10 18\n",
"output": "67\n"
},
{
"input": "1 0\n1\n",
"output": "0\n"
},
{
"input": "2 1\n72 94\n2 1 24\n",
"output": "24\n"
},
{
"input": "3 3\n2 3 1\n1 2 18\n2 3 18\n3 1 18\n",
"output": "7\n"
},
{
"input": "2 0\n1000000000000 1000000000000\n",
"output": "2000000000000\n"
}
] | code_contests | python | 0.9 | 16a5c3e6386ee0b44dd180f6525a8556 |
You are given array a_1, a_2, ..., a_n. Find the subsegment a_l, a_{l+1}, ..., a_r (1 ≤ l ≤ r ≤ n) with maximum arithmetic mean (1)/(r - l + 1)∑_{i=l}^{r}{a_i} (in floating-point numbers, i.e. without any rounding).
If there are many such subsegments find the longest one.
Input
The first line contains single integer n (1 ≤ n ≤ 10^5) — length of the array a.
The second line contains n integers a_1, a_2, ..., a_n (0 ≤ a_i ≤ 10^9) — the array a.
Output
Print the single integer — the length of the longest subsegment with maximum possible arithmetic mean.
Example
Input
5
6 1 6 6 0
Output
2
Note
The subsegment [3, 4] is the longest among all subsegments with maximum arithmetic mean.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n=int(input())
s=[int(x) for x in input().split()]
el=max(s)
pos1=-1
pos2=-1
c=0
ans=0
for i in range(0,len(s)):
if(s[i]==el):
c=c+1
else:
ans=max(ans,c)
c=0
ans=max(ans,c)
print(ans)
| python | code_algorithm | [
{
"input": "5\n6 1 6 6 0\n",
"output": "2\n"
},
{
"input": "2\n1 5\n",
"output": "1\n"
},
{
"input": "5\n1 0 0 0 0\n",
"output": "1\n"
},
{
"input": "15\n2 2 1 2 2 2 2 1 2 2 2 1 2 2 3\n",
"output": "1\n"
},
{
"input": "2\n1 2\n",
"output": "1\n"
},
{
"input": "4\n2 2 1 3\n",
"output": "1\n"
},
{
"input": "3\n0 0 0\n",
"output": "3\n"
},
{
"input": "5\n1 3 3 1 3\n",
"output": "2\n"
},
{
"input": "10\n0 0 0 0 0 0 0 0 0 0\n",
"output": "10\n"
},
{
"input": "2\n1000 16777252\n",
"output": "1\n"
},
{
"input": "1\n0\n",
"output": "1\n"
},
{
"input": "4\n0 0 0 0\n",
"output": "4\n"
},
{
"input": "7\n1 1 1 0 1 2 2\n",
"output": "2\n"
},
{
"input": "5\n1 1 1 0 2\n",
"output": "1\n"
},
{
"input": "5\n0 0 0 0 0\n",
"output": "5\n"
},
{
"input": "69\n2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70\n",
"output": "1\n"
},
{
"input": "6\n0 0 0 0 0 0\n",
"output": "6\n"
},
{
"input": "3\n1 0 1\n",
"output": "1\n"
},
{
"input": "5\n2 2 2 2 3\n",
"output": "1\n"
},
{
"input": "6\n2 2 2 2 1 5\n",
"output": "1\n"
},
{
"input": "2\n0 0\n",
"output": "2\n"
},
{
"input": "3\n1 3 2\n",
"output": "1\n"
},
{
"input": "5\n6 6 6 4 7\n",
"output": "1\n"
},
{
"input": "11\n20 20 20 2 2 2 20 2 22 2 2\n",
"output": "1\n"
},
{
"input": "5\n0 0 1 1 1\n",
"output": "3\n"
},
{
"input": "6\n4842148 4842148 4842148 4842148 4842148 4842148\n",
"output": "6\n"
},
{
"input": "1\n1\n",
"output": "1\n"
},
{
"input": "8\n0 0 0 0 0 0 0 0\n",
"output": "8\n"
},
{
"input": "1\n1000000000\n",
"output": "1\n"
},
{
"input": "9\n0 0 0 1 1 1 0 0 0\n",
"output": "3\n"
},
{
"input": "5\n0 0 0 1 1\n",
"output": "2\n"
},
{
"input": "7\n0 0 0 0 0 0 0\n",
"output": "7\n"
},
{
"input": "3\n100 99 1\n",
"output": "1\n"
},
{
"input": "6\n4842145 4842145 4842145 4842145 4842145 4842145\n",
"output": "6\n"
},
{
"input": "5\n275054136 275054136 275054136 275054136 275054136\n",
"output": "5\n"
},
{
"input": "6\n1 1 0 1 1 1\n",
"output": "3\n"
},
{
"input": "11\n0 0 0 0 0 0 0 0 0 0 0\n",
"output": "11\n"
},
{
"input": "19\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "19\n"
},
{
"input": "23\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "23\n"
},
{
"input": "4\n32 32 32 32\n",
"output": "4\n"
},
{
"input": "26\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "26\n"
},
{
"input": "3\n273481468 273481468 273481468\n",
"output": "3\n"
},
{
"input": "6\n3 3 2 2 2 2\n",
"output": "2\n"
},
{
"input": "7\n1 5 1 1 1 1 1\n",
"output": "1\n"
},
{
"input": "101\n2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2\n",
"output": "101\n"
},
{
"input": "6\n1 2 3 3 2 1\n",
"output": "2\n"
},
{
"input": "17\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "17\n"
}
] | code_contests | python | 0.3 | d2080d820e558ff117f19aa3e5a24682 |
This problem is same as the next one, but has smaller constraints.
It was a Sunday morning when the three friends Selena, Shiro and Katie decided to have a trip to the nearby power station (do not try this at home). After arriving at the power station, the cats got impressed with a large power transmission system consisting of many chimneys, electric poles, and wires. Since they are cats, they found those things gigantic.
At the entrance of the station, there is a map describing the complicated wiring system. Selena is the best at math among three friends. He decided to draw the map on the Cartesian plane. Each pole is now a point at some coordinates (x_i, y_i). Since every pole is different, all of the points representing these poles are distinct. Also, every two poles are connected with each other by wires. A wire is a straight line on the plane infinite in both directions. If there are more than two poles lying on the same line, they are connected by a single common wire.
Selena thinks, that whenever two different electric wires intersect, they may interfere with each other and cause damage. So he wonders, how many pairs are intersecting? Could you help him with this problem?
Input
The first line contains a single integer n (2 ≤ n ≤ 50) — the number of electric poles.
Each of the following n lines contains two integers x_i, y_i (-10^4 ≤ x_i, y_i ≤ 10^4) — the coordinates of the poles.
It is guaranteed that all of these n points are distinct.
Output
Print a single integer — the number of pairs of wires that are intersecting.
Examples
Input
4
0 0
1 1
0 3
1 2
Output
14
Input
4
0 0
0 2
0 4
2 0
Output
6
Input
3
-1 -1
1 0
3 1
Output
0
Note
In the first example:
<image>
In the second example:
<image>
Note that the three poles (0, 0), (0, 2) and (0, 4) are connected by a single wire.
In the third example:
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import sys
import collections
import math
import heapq
from operator import itemgetter
def getint():
return int(input())
def getints():
return [int(x) for x in input().split(' ')]
n = getint()
points = [tuple(getints()) for _ in range(n)]
result = 0
slopes = collections.defaultdict(set)
for i in range(n - 1):
for j in range(i + 1, n):
x1, y1, x2, y2 = points[i][0], points[i][1], points[j][0], points[j][1]
a, b = y1 - y2, x1 - x2
d = math.gcd(a, b)
a, b = a // d, b // d
if a < 0 or (a == 0 and b < 0):
a, b = -a, -b
c = a * x1 - b * y1
slope = (a, b)
slopes[slope].add(c)
slopeGroups = [(ab[0], ab[1], len(cs)) for ab, cs in slopes.items()]
m = len(slopeGroups)
for i in range(m - 1):
intersects = 0
for j in range(i + 1, m):
intersects += slopeGroups[j][2]
result += slopeGroups[i][2] * intersects
print(str(result)) | python | code_algorithm | [
{
"input": "4\n0 0\n1 1\n0 3\n1 2\n",
"output": "14\n"
},
{
"input": "4\n0 0\n0 2\n0 4\n2 0\n",
"output": "6\n"
},
{
"input": "3\n-1 -1\n1 0\n3 1\n",
"output": "0\n"
},
{
"input": "2\n10000 10000\n-10000 -10000\n",
"output": "0\n"
},
{
"input": "5\n-8893 8986\n-3629 9045\n-7719 -6470\n-258 4491\n-6902 -6866\n",
"output": "45\n"
},
{
"input": "25\n1964 -4517\n5939 -4080\n9503 -7541\n-5037 -6950\n-9914 5015\n-435 7555\n-9321 -2202\n-5036 4224\n4946 -6785\n-6824 -9830\n-9124 9117\n-8396 -2748\n9284 556\n-1672 -6681\n-8782 9912\n-8164 4679\n1804 -6201\n-1155 2405\n-858 4105\n419 -7325\n-8034 -3084\n-7823 -5829\n-5784 5391\n9515 5259\n-8078 752\n",
"output": "44850\n"
},
{
"input": "20\n-5118 -9140\n-5118 -7807\n-5118 -5328\n-5118 -3139\n-5118 -1442\n-5118 -1169\n-5118 -733\n-5118 3460\n-5118 8555\n-5118 9702\n-3971 -9140\n-3971 -7807\n-3971 -5328\n-3971 -3139\n-3971 -1442\n-3971 -1169\n-3971 -733\n-3971 3460\n-3971 8555\n-3971 9702\n",
"output": "5105\n"
},
{
"input": "10\n-5475 1753\n-8077 -5005\n7903 -131\n5159 9077\n5159 9076\n-6761 4557\n-9188 -9329\n-4591 617\n-9686 -6410\n648 -1608\n",
"output": "990\n"
},
{
"input": "21\n-8207 -8742\n-8207 2162\n-8207 3741\n-6190 -8742\n-6190 2162\n-6190 3741\n-2214 -8742\n-2214 2162\n-2214 3741\n-1839 -8742\n-1839 2162\n-1839 3741\n207 -8742\n207 2162\n207 3741\n3032 -8742\n3032 2162\n3032 3741\n8740 -8742\n8740 2162\n8740 3741\n",
"output": "9156\n"
},
{
"input": "6\n-9129 -8491\n-9129 -1754\n-9129 -1316\n1679 -8491\n1679 -1754\n1679 -1316\n",
"output": "51\n"
},
{
"input": "25\n-10000 -10000\n-10000 -5000\n-10000 0\n-10000 5000\n-10000 10000\n-5000 -10000\n-5000 -5000\n-5000 0\n-5000 5000\n-5000 10000\n0 -10000\n0 -5000\n0 0\n0 5000\n0 10000\n5000 -10000\n5000 -5000\n5000 0\n5000 5000\n5000 10000\n10000 -10000\n10000 -5000\n10000 0\n10000 5000\n10000 10000\n",
"output": "9324\n"
},
{
"input": "3\n-4928 7147\n3808 3567\n2434 8649\n",
"output": "3\n"
},
{
"input": "16\n297 3286\n-9374 4754\n7891 -4091\n6087 -1252\n3371 -858\n789 -9370\n7241 2950\n-7390 355\n-5536 -3119\n2413 -5560\n4673 7622\n5344 -9455\n1918 -8370\n-6034 -4144\n9018 -996\n-7542 -9138\n",
"output": "7140\n"
},
{
"input": "2\n6757 4799\n-1343 -7745\n",
"output": "0\n"
},
{
"input": "4\n5648 -804\n1518 -2267\n7358 -6618\n-4504 2047\n",
"output": "15\n"
},
{
"input": "4\n-3955 7228\n-2267 7358\n-5256 -1266\n9674 -3048\n",
"output": "15\n"
},
{
"input": "2\n8303 2432\n-7745 -4751\n",
"output": "0\n"
},
{
"input": "5\n8456 -2932\n9045 -7719\n-10000 6748\n9044 -7720\n-1125 -914\n",
"output": "45\n"
},
{
"input": "12\n796 -415\n796 169\n796 2695\n1979 -415\n1979 169\n1979 2695\n5371 -415\n5371 169\n5371 2695\n8366 -415\n8366 169\n8366 2695\n",
"output": "894\n"
},
{
"input": "15\n-7871 -4833\n-7871 -1936\n-7871 425\n-4790 -4833\n-4790 -1936\n-4790 425\n912 -4833\n912 -1936\n912 425\n4236 -4833\n4236 -1936\n4236 425\n8382 -4833\n8382 -1936\n8382 425\n",
"output": "2265\n"
},
{
"input": "42\n-5391 -2932\n-5391 -2868\n-5391 1744\n-5391 2236\n-5391 4148\n-5391 5217\n-5391 6188\n-3584 -2932\n-3584 -2868\n-3584 1744\n-3584 2236\n-3584 4148\n-3584 5217\n-3584 6188\n-1657 -2932\n-1657 -2868\n-1657 1744\n-1657 2236\n-1657 4148\n-1657 5217\n-1657 6188\n3218 -2932\n3218 -2868\n3218 1744\n3218 2236\n3218 4148\n3218 5217\n3218 6188\n7582 -2932\n7582 -2868\n7582 1744\n7582 2236\n7582 4148\n7582 5217\n7582 6188\n8131 -2932\n8131 -2868\n8131 1744\n8131 2236\n8131 4148\n8131 5217\n8131 6188\n",
"output": "206367\n"
},
{
"input": "4\n-10000 -10000\n-10000 10000\n10000 -10000\n10000 10000\n",
"output": "13\n"
},
{
"input": "3\n-1547 4830\n3567 2434\n1522 -4418\n",
"output": "3\n"
},
{
"input": "10\n3986 -4462\n-5492 -8077\n-5005 4012\n8092 5848\n5159 9077\n-9814 5652\n-2848 -6707\n-1528 8298\n9444 -4143\n-7928 1163\n",
"output": "990\n"
},
{
"input": "12\n1804 -7018\n-3551 1915\n-8148 5497\n-3430 -2988\n377 -1656\n-3799 6338\n-4248 -8428\n7371 -5005\n1216 406\n-294 5589\n-6477 -8889\n-8919 3676\n",
"output": "2145\n"
},
{
"input": "25\n5061 -2382\n-4080 9503\n-4081 9503\n5061 -2381\n-6549 9641\n-8510 6047\n-8110 8720\n6829 -8424\n-1413 -5926\n2446 -3190\n5405 8413\n8272 6829\n3034 -3978\n-3403 3036\n1383 4041\n829 327\n-4079 9504\n9293 -5091\n486 -5050\n6384 3727\n4787 6634\n4492 1126\n-1288 -4938\n4345 8056\n-3402 3035\n",
"output": "43365\n"
},
{
"input": "20\n-7068 -9088\n-7068 -7174\n-7068 -6012\n-7068 -3037\n-7068 3299\n532 -9088\n532 -7174\n532 -6012\n532 -3037\n532 3299\n6883 -9088\n6883 -7174\n6883 -6012\n6883 -3037\n6883 3299\n8251 -9088\n8251 -7174\n8251 -6012\n8251 -3037\n8251 3299\n",
"output": "8240\n"
},
{
"input": "16\n0 0\n0 2\n0 4\n0 6\n2 0\n2 2\n2 4\n2 6\n4 0\n4 2\n4 4\n4 6\n6 0\n6 2\n6 4\n6 6\n",
"output": "1783\n"
},
{
"input": "4\n-10000 -10000\n-10000 -9999\n10000 10000\n9999 10000\n",
"output": "14\n"
},
{
"input": "9\n-8172 -8016\n-8172 -63\n-8172 9586\n-1609 -8016\n-1609 -63\n-1609 9586\n2972 -8016\n2972 -63\n2972 9586\n",
"output": "270\n"
},
{
"input": "16\n-7073 -2432\n4754 7891\n4753 7890\n4755 7892\n1033 -7465\n4487 -9951\n-4613 3633\n-6753 9089\n5853 -1919\n-236 5170\n4754 7889\n-9989 -3488\n-1390 5520\n3139 8543\n4754 7890\n7576 5150\n",
"output": "6670\n"
},
{
"input": "12\n-9440 -8967\n1915 -8148\n-7216 8361\n6338 -4248\n-1425 -2251\n1216 406\n-2676 8355\n-8889 -8919\n-1163 -4185\n5018 -7302\n-2724 3986\n-7890 1900\n",
"output": "2016\n"
}
] | code_contests | python | 0.1 | 9e2cb5b99abe2a30b0aea5e914e4f148 |
Melody Pond was stolen from her parents as a newborn baby by Madame Kovarian, to become a weapon of the Silence in their crusade against the Doctor. Madame Kovarian changed Melody's name to River Song, giving her a new identity that allowed her to kill the Eleventh Doctor.
Heidi figured out that Madame Kovarian uses a very complicated hashing function in order to change the names of the babies she steals. In order to prevent this from happening to future Doctors, Heidi decided to prepare herself by learning some basic hashing techniques.
The first hashing function she designed is as follows.
Given two positive integers (x, y) she defines H(x,y):=x^2+2xy+x+1.
Now, Heidi wonders if the function is reversible. That is, given a positive integer r, can you find a pair (x, y) (of positive integers) such that H(x, y) = r?
If multiple such pairs exist, output the one with smallest possible x. If there is no such pair, output "NO".
Input
The first and only line contains an integer r (1 ≤ r ≤ 10^{12}).
Output
Output integers x, y such that H(x,y) = r and x is smallest possible, or "NO" if no such pair exists.
Examples
Input
19
Output
1 8
Input
16
Output
NO
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from math import sqrt
def get_int():
from sys import stdin
return int(stdin.readline().replace('\n', ''))
def is_even(n):
return n%2 == 0
def heidi_hash(r):
k = r-1
rt = int(sqrt(k))
for x in range(1, rt+2):
if k % x == 0:
temp = k/x -x -1
if temp > 0 and is_even(temp):
return x,int(temp/2)
return 'NO'
r = get_int()
res = heidi_hash(r)
print(res[0],res[1]) if type(res) != type('') else print(res)
| python | code_algorithm | [
{
"input": "19\n",
"output": "1 8\n"
},
{
"input": "16\n",
"output": "NO\n"
},
{
"input": "768407398177\n",
"output": "1 384203699087\n"
},
{
"input": "7\n",
"output": "1 2\n"
},
{
"input": "156231653273\n",
"output": "1 78115826635\n"
},
{
"input": "426262703497\n",
"output": "1 213131351747\n"
},
{
"input": "688373050717\n",
"output": "1 344186525357\n"
},
{
"input": "149890929717\n",
"output": "1 74945464857\n"
},
{
"input": "5\n",
"output": "1 1\n"
},
{
"input": "185589070745\n",
"output": "1 92794535371\n"
},
{
"input": "943447972637\n",
"output": "1 471723986317\n"
},
{
"input": "15\n",
"output": "1 6\n"
},
{
"input": "21\n",
"output": "1 9\n"
},
{
"input": "540024979445\n",
"output": "1 270012489721\n"
},
{
"input": "963761198401\n",
"output": "1 481880599199\n"
},
{
"input": "215283472163\n",
"output": "1 107641736080\n"
},
{
"input": "17\n",
"output": "1 7\n"
},
{
"input": "54336309171\n",
"output": "1 27168154584\n"
},
{
"input": "7505295085\n",
"output": "1 3752647541\n"
},
{
"input": "419450839\n",
"output": "1 209725418\n"
},
{
"input": "9\n",
"output": "1 3\n"
},
{
"input": "23744498401\n",
"output": "1 11872249199\n"
},
{
"input": "652509336151\n",
"output": "1 326254668074\n"
},
{
"input": "519397679401\n",
"output": "1 259698839699\n"
},
{
"input": "54433933447\n",
"output": "1 27216966722\n"
},
{
"input": "250877914575\n",
"output": "1 125438957286\n"
},
{
"input": "13\n",
"output": "1 5\n"
},
{
"input": "11\n",
"output": "1 4\n"
},
{
"input": "240940299601\n",
"output": "1 120470149799\n"
},
{
"input": "16476190629\n",
"output": "1 8238095313\n"
},
{
"input": "29617919\n",
"output": "1 14808958\n"
},
{
"input": "962623690081\n",
"output": "1 481311845039\n"
},
{
"input": "260158260522\n",
"output": "NO\n"
},
{
"input": "116602436426\n",
"output": "NO\n"
},
{
"input": "723211047202\n",
"output": "NO\n"
},
{
"input": "8\n",
"output": "NO\n"
},
{
"input": "1\n",
"output": "NO\n"
},
{
"input": "2\n",
"output": "NO\n"
},
{
"input": "18\n",
"output": "NO\n"
},
{
"input": "4\n",
"output": "NO\n"
},
{
"input": "14\n",
"output": "NO\n"
},
{
"input": "10\n",
"output": "NO\n"
},
{
"input": "917861648772\n",
"output": "NO\n"
},
{
"input": "12\n",
"output": "NO\n"
},
{
"input": "20\n",
"output": "NO\n"
},
{
"input": "6\n",
"output": "NO\n"
},
{
"input": "3\n",
"output": "NO\n"
}
] | code_contests | python | 0.5 | 0aa25f9c504d68aa3d283d3679e3de0f |
You are on the island which can be represented as a n × m table. The rows are numbered from 1 to n and the columns are numbered from 1 to m. There are k treasures on the island, the i-th of them is located at the position (r_i, c_i).
Initially you stand at the lower left corner of the island, at the position (1, 1). If at any moment you are at the cell with a treasure, you can pick it up without any extra time. In one move you can move up (from (r, c) to (r+1, c)), left (from (r, c) to (r, c-1)), or right (from position (r, c) to (r, c+1)). Because of the traps, you can't move down.
However, moving up is also risky. You can move up only if you are in a safe column. There are q safe columns: b_1, b_2, …, b_q. You want to collect all the treasures as fast as possible. Count the minimum number of moves required to collect all the treasures.
Input
The first line contains integers n, m, k and q (2 ≤ n, m, k, q ≤ 2 ⋅ 10^5, q ≤ m) — the number of rows, the number of columns, the number of treasures in the island and the number of safe columns.
Each of the next k lines contains two integers r_i, c_i, (1 ≤ r_i ≤ n, 1 ≤ c_i ≤ m) — the coordinates of the cell with a treasure. All treasures are located in distinct cells.
The last line contains q distinct integers b_1, b_2, …, b_q (1 ≤ b_i ≤ m) — the indices of safe columns.
Output
Print the minimum number of moves required to collect all the treasures.
Examples
Input
3 3 3 2
1 1
2 1
3 1
2 3
Output
6
Input
3 5 3 2
1 2
2 3
3 1
1 5
Output
8
Input
3 6 3 2
1 6
2 2
3 4
1 6
Output
15
Note
In the first example you should use the second column to go up, collecting in each row treasures from the first column.
<image>
In the second example, it is optimal to use the first column to go up.
<image>
In the third example, it is optimal to collect the treasure at cell (1;6), go up to row 2 at column 6, then collect the treasure at cell (2;2), go up to the top row at column 1 and collect the last treasure at cell (3;4). That's a total of 15 moves.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from sys import stdin
from bisect import bisect_left
input=stdin.readline
n,m,k,q=map(int,input().split(' '))
x=sorted(list(map(int,input().split(' ')))for i in range(k))
y=sorted(list(map(int,input().split(' '))))
def rr(c0,c1,c2):
return abs(c2-c0)+abs(c1-c2)
def tm(c0,c1):
t=bisect_left(y,c0)
tt=[]
if (t>0):
tt.append(rr(c0,c1,y[t-1]))
if (t<q):
tt.append(rr(c0,c1,y[t]))
return min(tt)
# thực hiện tìm xem trong một hàng, kho báu nằm từ khoảng nào đến khoảng nào.
z=[]
for r,c in x:
if z and z[-1][0]==r:
z[-1][2]=c
else:
z.append([r,c,c])
v1,v2,r0,c01,c02=0,0,1,1,1
for r1,c11,c12 in z:
d=c12-c11+r1-r0
# bình thường
if(r1>r0):
d01=tm(c01,c11)
d02=tm(c01,c12)
d11=tm(c02,c11)
d12=tm(c02,c12)
v2,v1=d+min(v1+d01,v2+d11),d +min(v1+d02,v2+d12)
#nếu có kho báu ở hàng 1
else:
v1,v2=d+c12-c02,d+c11-c01
c01,c02,r0=c11,c12,r1
ans=min(v1,v2)
print(ans)
| python | code_algorithm | [
{
"input": "3 6 3 2\n1 6\n2 2\n3 4\n1 6\n",
"output": "15\n"
},
{
"input": "3 3 3 2\n1 1\n2 1\n3 1\n2 3\n",
"output": "6\n"
},
{
"input": "3 5 3 2\n1 2\n2 3\n3 1\n1 5\n",
"output": "8\n"
},
{
"input": "2 11 7 6\n1 1\n1 5\n1 2\n1 4\n1 11\n1 8\n1 3\n3 6 5 10 2 7\n",
"output": "10\n"
},
{
"input": "2 2 2 2\n1 1\n1 2\n1 2\n",
"output": "1\n"
},
{
"input": "200000 200000 2 2\n104889 58569\n855 142967\n125218 47859\n",
"output": "332252\n"
},
{
"input": "5 5 10 3\n3 1\n3 2\n3 5\n1 5\n2 1\n2 5\n1 2\n1 4\n3 3\n2 4\n2 1 5\n",
"output": "14\n"
},
{
"input": "3 21 49 11\n3 5\n1 14\n2 17\n3 17\n3 9\n1 9\n3 20\n2 9\n3 11\n2 4\n3 16\n2 7\n1 2\n3 7\n3 8\n2 15\n2 2\n3 6\n2 5\n3 10\n2 19\n3 15\n3 13\n3 2\n3 12\n3 4\n2 20\n2 8\n3 14\n2 6\n2 1\n1 16\n2 18\n2 21\n3 19\n2 16\n2 11\n1 3\n2 14\n1 6\n1 12\n3 1\n2 13\n3 18\n2 10\n2 12\n2 3\n3 3\n3 21\n14 8 20 6 4 10 18 2 12 11 21\n",
"output": "64\n"
},
{
"input": "5 3 10 3\n5 3\n1 1\n2 2\n1 3\n3 2\n5 2\n2 3\n2 1\n3 1\n5 1\n1 2 3\n",
"output": "12\n"
},
{
"input": "3 2 4 2\n3 2\n2 1\n2 2\n3 1\n2 1\n",
"output": "4\n"
},
{
"input": "11 2 4 2\n5 1\n4 1\n8 2\n5 2\n1 2\n",
"output": "8\n"
},
{
"input": "2 2 3 2\n2 2\n2 1\n1 1\n1 2\n",
"output": "2\n"
},
{
"input": "3 3 8 2\n2 2\n1 2\n2 1\n2 3\n3 2\n1 3\n3 1\n3 3\n3 2\n",
"output": "10\n"
},
{
"input": "21 3 61 3\n18 3\n21 3\n11 3\n13 2\n5 2\n14 2\n10 3\n9 3\n12 1\n1 2\n7 2\n20 1\n16 3\n9 2\n9 1\n20 3\n17 3\n6 1\n4 2\n1 1\n3 1\n4 1\n6 3\n6 2\n2 1\n13 3\n5 3\n3 2\n13 1\n10 1\n11 1\n18 1\n11 2\n5 1\n19 2\n20 2\n16 1\n12 3\n2 2\n3 3\n19 3\n8 2\n15 3\n8 1\n14 1\n17 1\n21 1\n19 1\n21 2\n12 2\n2 3\n8 3\n1 3\n16 2\n17 2\n7 1\n10 2\n18 2\n7 3\n4 3\n14 3\n2 3 1\n",
"output": "62\n"
},
{
"input": "2 3 2 3\n1 1\n1 2\n2 1 3\n",
"output": "1\n"
}
] | code_contests | python | 0 | 36022c7f8e498e8adffe4a043bb10a7f |
Ujan has been lazy lately, but now has decided to bring his yard to good shape. First, he decided to paint the path from his house to the gate.
The path consists of n consecutive tiles, numbered from 1 to n. Ujan will paint each tile in some color. He will consider the path aesthetic if for any two different tiles with numbers i and j, such that |j - i| is a divisor of n greater than 1, they have the same color. Formally, the colors of two tiles with numbers i and j should be the same if |i-j| > 1 and n mod |i-j| = 0 (where x mod y is the remainder when dividing x by y).
Ujan wants to brighten up space. What is the maximum number of different colors that Ujan can use, so that the path is aesthetic?
Input
The first line of input contains a single integer n (1 ≤ n ≤ 10^{12}), the length of the path.
Output
Output a single integer, the maximum possible number of colors that the path can be painted in.
Examples
Input
4
Output
2
Input
5
Output
5
Note
In the first sample, two colors is the maximum number. Tiles 1 and 3 should have the same color since 4 mod |3-1| = 0. Also, tiles 2 and 4 should have the same color since 4 mod |4-2| = 0.
In the second sample, all five colors can be used.
<image>
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | def prime_factor(n):
ass = []
for i in range(2,int(n**0.5)+1):
while n % i==0:
ass.append(i)
n = n//i
if n != 1:
ass.append(n)
return ass
n = int(input())
p = list(set(prime_factor(n)))
if len(p) == 1:
print(p[0])
else:
print(1) | python | code_algorithm | [
{
"input": "5\n",
"output": "5\n"
},
{
"input": "4\n",
"output": "2\n"
},
{
"input": "2\n",
"output": "2\n"
},
{
"input": "54241012609\n",
"output": "1\n"
},
{
"input": "4294967318\n",
"output": "1\n"
},
{
"input": "370758709373\n",
"output": "1\n"
},
{
"input": "546739553053\n",
"output": "1\n"
},
{
"input": "922350872881\n",
"output": "1\n"
},
{
"input": "442654694329\n",
"output": "1\n"
},
{
"input": "832972004929\n",
"output": "97\n"
},
{
"input": "931667836027\n",
"output": "1\n"
},
{
"input": "6469693230\n",
"output": "1\n"
},
{
"input": "9\n",
"output": "3\n"
},
{
"input": "243\n",
"output": "3\n"
},
{
"input": "549755813888\n",
"output": "2\n"
},
{
"input": "902076349729\n",
"output": "949777\n"
},
{
"input": "2000006\n",
"output": "1\n"
},
{
"input": "916517107801\n",
"output": "957349\n"
},
{
"input": "200001286\n",
"output": "1\n"
},
{
"input": "964483090561\n",
"output": "991\n"
},
{
"input": "2000000014\n",
"output": "1\n"
},
{
"input": "852891037441\n",
"output": "31\n"
},
{
"input": "8\n",
"output": "2\n"
},
{
"input": "1\n",
"output": "1\n"
},
{
"input": "200560490130\n",
"output": "1\n"
},
{
"input": "790666780911\n",
"output": "1\n"
},
{
"input": "19463908527\n",
"output": "1\n"
},
{
"input": "930881829259\n",
"output": "930881829259\n"
},
{
"input": "463116009722\n",
"output": "1\n"
},
{
"input": "7\n",
"output": "7\n"
},
{
"input": "42\n",
"output": "1\n"
},
{
"input": "977592945289\n",
"output": "988733\n"
},
{
"input": "812990017201\n",
"output": "241\n"
},
{
"input": "944364878731\n",
"output": "9811\n"
},
{
"input": "1000000000000\n",
"output": "1\n"
},
{
"input": "974059904437\n",
"output": "974059904437\n"
},
{
"input": "20000038\n",
"output": "1\n"
},
{
"input": "8297518\n",
"output": "1\n"
},
{
"input": "971324893193\n",
"output": "1\n"
},
{
"input": "30517578125\n",
"output": "5\n"
},
{
"input": "1073741824\n",
"output": "2\n"
},
{
"input": "27\n",
"output": "3\n"
},
{
"input": "10460353203\n",
"output": "3\n"
},
{
"input": "791429910106\n",
"output": "1\n"
},
{
"input": "322687697779\n",
"output": "19\n"
},
{
"input": "918797935650\n",
"output": "1\n"
},
{
"input": "20000282\n",
"output": "1\n"
},
{
"input": "963201794869\n",
"output": "963201794869\n"
},
{
"input": "3\n",
"output": "3\n"
},
{
"input": "3486784401\n",
"output": "3\n"
},
{
"input": "954531058771\n",
"output": "1\n"
},
{
"input": "934464422329\n",
"output": "966677\n"
},
{
"input": "951069502319\n",
"output": "1\n"
},
{
"input": "81\n",
"output": "3\n"
},
{
"input": "506623120463\n",
"output": "47\n"
},
{
"input": "2599082\n",
"output": "1\n"
},
{
"input": "6\n",
"output": "1\n"
},
{
"input": "34359738368\n",
"output": "2\n"
},
{
"input": "137858491849\n",
"output": "13\n"
},
{
"input": "847288609443\n",
"output": "3\n"
},
{
"input": "912943012301\n",
"output": "912943012301\n"
},
{
"input": "295697631125\n",
"output": "1\n"
}
] | code_contests | python | 0 | 0d82584d023ddedece665ba1d1e04255 |
You are given two positive integers a and b. In one move you can increase a by 1 (replace a with a+1). Your task is to find the minimum number of moves you need to do in order to make a divisible by b. It is possible, that you have to make 0 moves, as a is already divisible by b. You have to answer t independent test cases.
Input
The first line of the input contains one integer t (1 ≤ t ≤ 10^4) — the number of test cases. Then t test cases follow.
The only line of the test case contains two integers a and b (1 ≤ a, b ≤ 10^9).
Output
For each test case print the answer — the minimum number of moves you need to do in order to make a divisible by b.
Example
Input
5
10 4
13 9
100 13
123 456
92 46
Output
2
5
4
333
0
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | t=int(input())
for i in range(0,t):
a,b=input().split()
a=int(a)
b=int(b)
print((b-a%b)%b) | python | code_algorithm | [
{
"input": "5\n10 4\n13 9\n100 13\n123 456\n92 46\n",
"output": "2\n5\n4\n333\n0\n"
},
{
"input": "1\n515151 2\n",
"output": "1\n"
},
{
"input": "21\n1 3218\n28 10924\n908802 141084\n82149 9274\n893257 10248\n2750048 802705\n2857 142\n980 209385\n1 3218\n28 10924\n908802 141084\n82149 9274\n893257 10248\n2750048 802705\n2857 142\n980 209385\n1 3218\n28 10924\n908802 141084\n82149 9274\n893257 10248\n",
"output": "3217\n10896\n78786\n1317\n8567\n460772\n125\n208405\n3217\n10896\n78786\n1317\n8567\n460772\n125\n208405\n3217\n10896\n78786\n1317\n8567\n"
},
{
"input": "1\n9987 1\n",
"output": "0\n"
},
{
"input": "1\n9986 1\n",
"output": "0\n"
},
{
"input": "1\n100 9090\n",
"output": "8990\n"
},
{
"input": "1\n2232 7\n",
"output": "1\n"
},
{
"input": "1\n914 78\n",
"output": "22\n"
}
] | code_contests | python | 1 | cb9263badd242860dea59f687ae071cb |
Phoenix has n coins with weights 2^1, 2^2, ..., 2^n. He knows that n is even.
He wants to split the coins into two piles such that each pile has exactly n/2 coins and the difference of weights between the two piles is minimized. Formally, let a denote the sum of weights in the first pile, and b denote the sum of weights in the second pile. Help Phoenix minimize |a-b|, the absolute value of a-b.
Input
The input consists of multiple test cases. The first line contains an integer t (1 ≤ t ≤ 100) — the number of test cases.
The first line of each test case contains an integer n (2 ≤ n ≤ 30; n is even) — the number of coins that Phoenix has.
Output
For each test case, output one integer — the minimum possible difference of weights between the two piles.
Example
Input
2
2
4
Output
2
6
Note
In the first test case, Phoenix has two coins with weights 2 and 4. No matter how he divides the coins, the difference will be 4-2=2.
In the second test case, Phoenix has four coins of weight 2, 4, 8, and 16. It is optimal for Phoenix to place coins with weights 2 and 16 in one pile, and coins with weights 4 and 8 in another pile. The difference is (2+16)-(4+8)=6.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | t=eval(input())
for j in range(t):
n=eval(input())
if n==2 :
print(2)
else:
sum=2
for i in range(1,n//2):
sum=sum+2**(i+1)
print(sum)
| python | code_algorithm | [
{
"input": "2\n2\n4\n",
"output": "2\n6\n"
},
{
"input": "100\n2\n4\n6\n8\n10\n12\n14\n16\n18\n20\n22\n24\n26\n28\n30\n30\n30\n30\n20\n30\n30\n18\n14\n16\n30\n24\n30\n30\n10\n20\n30\n10\n2\n18\n30\n30\n12\n24\n30\n24\n18\n28\n30\n16\n30\n30\n30\n30\n22\n26\n30\n30\n30\n10\n14\n6\n18\n30\n16\n30\n30\n4\n30\n20\n30\n30\n30\n30\n30\n24\n30\n30\n12\n30\n30\n30\n26\n30\n14\n30\n30\n30\n14\n30\n30\n30\n30\n30\n30\n30\n12\n30\n14\n14\n2\n30\n30\n30\n30\n30\n",
"output": "2\n6\n14\n30\n62\n126\n254\n510\n1022\n2046\n4094\n8190\n16382\n32766\n65534\n65534\n65534\n65534\n2046\n65534\n65534\n1022\n254\n510\n65534\n8190\n65534\n65534\n62\n2046\n65534\n62\n2\n1022\n65534\n65534\n126\n8190\n65534\n8190\n1022\n32766\n65534\n510\n65534\n65534\n65534\n65534\n4094\n16382\n65534\n65534\n65534\n62\n254\n14\n1022\n65534\n510\n65534\n65534\n6\n65534\n2046\n65534\n65534\n65534\n65534\n65534\n8190\n65534\n65534\n126\n65534\n65534\n65534\n16382\n65534\n254\n65534\n65534\n65534\n254\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n126\n65534\n254\n254\n2\n65534\n65534\n65534\n65534\n65534\n"
},
{
"input": "100\n4\n10\n12\n20\n14\n12\n14\n18\n14\n14\n20\n20\n14\n18\n24\n22\n24\n14\n26\n24\n24\n18\n16\n2\n28\n12\n10\n6\n26\n2\n10\n16\n16\n18\n2\n20\n30\n6\n12\n30\n14\n6\n8\n26\n12\n10\n12\n20\n14\n10\n12\n24\n4\n8\n12\n8\n20\n8\n10\n30\n12\n10\n12\n24\n20\n2\n4\n16\n22\n14\n8\n18\n14\n2\n4\n4\n26\n6\n30\n24\n28\n20\n8\n16\n8\n4\n18\n30\n6\n22\n22\n24\n30\n4\n24\n10\n14\n24\n6\n30\n",
"output": "6\n62\n126\n2046\n254\n126\n254\n1022\n254\n254\n2046\n2046\n254\n1022\n8190\n4094\n8190\n254\n16382\n8190\n8190\n1022\n510\n2\n32766\n126\n62\n14\n16382\n2\n62\n510\n510\n1022\n2\n2046\n65534\n14\n126\n65534\n254\n14\n30\n16382\n126\n62\n126\n2046\n254\n62\n126\n8190\n6\n30\n126\n30\n2046\n30\n62\n65534\n126\n62\n126\n8190\n2046\n2\n6\n510\n4094\n254\n30\n1022\n254\n2\n6\n6\n16382\n14\n65534\n8190\n32766\n2046\n30\n510\n30\n6\n1022\n65534\n14\n4094\n4094\n8190\n65534\n6\n8190\n62\n254\n8190\n14\n65534\n"
},
{
"input": "1\n2\n",
"output": "2\n"
},
{
"input": "100\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n30\n",
"output": "65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n65534\n"
}
] | code_contests | python | 0 | 9f92cfc23ad3afccdf1708eac56effd2 |
Each of you probably has your personal experience of riding public transportation and buying tickets. After a person buys a ticket (which traditionally has an even number of digits), he usually checks whether the ticket is lucky. Let us remind you that a ticket is lucky if the sum of digits in its first half matches the sum of digits in its second half.
But of course, not every ticket can be lucky. Far from it! Moreover, sometimes one look at a ticket can be enough to say right away that the ticket is not lucky. So, let's consider the following unluckiness criterion that can definitely determine an unlucky ticket. We'll say that a ticket is definitely unlucky if each digit from the first half corresponds to some digit from the second half so that each digit from the first half is strictly less than the corresponding digit from the second one or each digit from the first half is strictly more than the corresponding digit from the second one. Each digit should be used exactly once in the comparisons. In other words, there is such bijective correspondence between the digits of the first and the second half of the ticket, that either each digit of the first half turns out strictly less than the corresponding digit of the second half or each digit of the first half turns out strictly more than the corresponding digit from the second half.
For example, ticket 2421 meets the following unluckiness criterion and will not be considered lucky (the sought correspondence is 2 > 1 and 4 > 2), ticket 0135 also meets the criterion (the sought correspondence is 0 < 3 and 1 < 5), and ticket 3754 does not meet the criterion.
You have a ticket in your hands, it contains 2n digits. Your task is to check whether it meets the unluckiness criterion.
Input
The first line contains an integer n (1 ≤ n ≤ 100). The second line contains a string that consists of 2n digits and defines your ticket.
Output
In the first line print "YES" if the ticket meets the unluckiness criterion. Otherwise, print "NO" (without the quotes).
Examples
Input
2
2421
Output
YES
Input
2
0135
Output
YES
Input
2
3754
Output
NO
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | number_of_testcases = 1 #int(input())
for _ in range(number_of_testcases):
number_of_digits = int(input())
ticket_number = input()
ticket_number = list(ticket_number)
first_half = ticket_number[:number_of_digits]
second_half = ticket_number[number_of_digits:]
#print(first_half)
first_half.sort()
second_half.sort()
flag = 1
if first_half[0] > second_half[0]:
for i in range(number_of_digits):
if first_half[i] <= second_half[i]:
flag = 0
#print("NO")
else:
for i in range(number_of_digits):
if first_half[i] >= second_half[i]:
flag = 0
#print("NO")
if flag==1:
print("YES")
else:
print("NO")
| python | code_algorithm | [
{
"input": "2\n3754\n",
"output": "NO\n"
},
{
"input": "2\n0135\n",
"output": "YES\n"
},
{
"input": "2\n2421\n",
"output": "YES\n"
},
{
"input": "20\n7405800505032736115894335199688161431589\n",
"output": "YES\n"
},
{
"input": "100\n02002102210011010100120120200220102011120101221112212222120020210120100100210020110121012200202122003345665163205330111020604514053164225655212253500113103534213313020162345540026653211623642123220355\n",
"output": "NO\n"
},
{
"input": "10\n10001222212022211120\n",
"output": "NO\n"
},
{
"input": "2\n2231\n",
"output": "NO\n"
},
{
"input": "3\n158159\n",
"output": "NO\n"
},
{
"input": "100\n24242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424242424\n",
"output": "NO\n"
},
{
"input": "3\n132432\n",
"output": "YES\n"
},
{
"input": "100\n11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001\n",
"output": "NO\n"
},
{
"input": "100\n10101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010\n",
"output": "NO\n"
},
{
"input": "100\n11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222\n",
"output": "YES\n"
},
{
"input": "2\n0001\n",
"output": "NO\n"
},
{
"input": "10\n22222222224444444444\n",
"output": "YES\n"
},
{
"input": "100\n77183123282838517843664381789267288922656323541699343586762218319159218294863295482798464649254394971213132422224212223202404302223411433322333414121022024111412343110143421202444434024400100413442214\n",
"output": "YES\n"
},
{
"input": "100\n43242352435435435423653231443242342313412343253241432423524354354354236532314432423423134123432532417897987897897979897879879878979787987987987987989978979878978979798978798798789797879879879879879899\n",
"output": "YES\n"
},
{
"input": "100\n99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999991111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111\n",
"output": "YES\n"
},
{
"input": "10\n01101001000011011110\n",
"output": "NO\n"
},
{
"input": "100\n22222222222222222222222222222222222222222222222222111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222233333333333333333333333333333333333333333333333333\n",
"output": "YES\n"
},
{
"input": "50\n2102200200102000012010102011211201121112001112220022023331220132002222113003003302101312001033110321\n",
"output": "NO\n"
},
{
"input": "50\n5612454122355331521225634515354651153334442245234623042403102434401340330012200102111030242232001423\n",
"output": "YES\n"
},
{
"input": "100\n01232301021031212111013002303211223032012113201031332103213332222202203330122103103121131233013000116022330435355138573123144360458655075068170808157467335580232261005471574645456707410743351868832288\n",
"output": "NO\n"
},
{
"input": "100\n00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110\n",
"output": "NO\n"
},
{
"input": "2\n2322\n",
"output": "NO\n"
},
{
"input": "1\n33\n",
"output": "NO\n"
},
{
"input": "2\n3444\n",
"output": "NO\n"
},
{
"input": "10\n36828132853144011224\n",
"output": "YES\n"
},
{
"input": "5\n2563434512\n",
"output": "YES\n"
},
{
"input": "3\n999000\n",
"output": "YES\n"
},
{
"input": "3\n123012\n",
"output": "YES\n"
},
{
"input": "50\n1333113332002310001130333200002120101112101000001001122200021012010112000102121102212021200102011000\n",
"output": "NO\n"
},
{
"input": "3\n000100\n",
"output": "NO\n"
},
{
"input": "3\n378954\n",
"output": "NO\n"
},
{
"input": "50\n5060172568971658079607579942843871533766899530593457744544240062187820782803777264583028807003285606\n",
"output": "NO\n"
},
{
"input": "20\n5232324254212415411311123313002001301121\n",
"output": "YES\n"
},
{
"input": "20\n1011022122111202122200100211021100001122\n",
"output": "NO\n"
},
{
"input": "100\n29984263744168545119858476736999712929651758223788987449661283528958984743292587725324189134223179864351053241163312352223630541424435625146656004416300322106250255412140420461130552626644306153634053\n",
"output": "YES\n"
},
{
"input": "100\n10001111012200211011000121001200011210000020102102001022212010122102202221201112010122020001101100108897949728635541168542364573471936555772537461654157812311614931827469976934765219573155999659346292\n",
"output": "YES\n"
},
{
"input": "10\n11111111112222222222\n",
"output": "YES\n"
},
{
"input": "5\n1257823589\n",
"output": "NO\n"
},
{
"input": "50\n7768982292275759939882751465173844816331588199736866065335518782157581162167237401803021840688341656\n",
"output": "YES\n"
},
{
"input": "50\n0013011201111112210231333121030031021132323232322331422253215312454431312252454531121325154332452522\n",
"output": "YES\n"
},
{
"input": "100\n22343424233121404112342221440103014430444234223303320243202210332120013031314432132430043330110313112023440313043212221301033103041340034304442240323002140112031424013224122404204110340334110122004100\n",
"output": "NO\n"
},
{
"input": "3\n221323\n",
"output": "YES\n"
},
{
"input": "20\n3415010010430312351463661555326552265642\n",
"output": "YES\n"
},
{
"input": "1\n09\n",
"output": "YES\n"
},
{
"input": "3\n111117\n",
"output": "NO\n"
},
{
"input": "3\n123022\n",
"output": "NO\n"
},
{
"input": "100\n32033233210213232101210131232021120310331112120033001231123232221200213021203033300033131302232100038528951495743459997297531816949698487426212357538284284222536535855445278621151486932989238531899512\n",
"output": "YES\n"
},
{
"input": "100\n31600324621210624556500610052054505630313425345404534213653266122646254136660603332516425411106060211654812165791554127683771773326741719787895359171717963263779732526239927838412657412425615852874991\n",
"output": "YES\n"
},
{
"input": "6\n123456789000\n",
"output": "NO\n"
},
{
"input": "1\n10\n",
"output": "YES\n"
},
{
"input": "100\n88888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888888889999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999\n",
"output": "YES\n"
}
] | code_contests | python | 1 | f0b5da292109218123e3de893db45021 |
There are n piles of stones of sizes a1, a2, ..., an lying on the table in front of you.
During one move you can take one pile and add it to the other. As you add pile i to pile j, the size of pile j increases by the current size of pile i, and pile i stops existing. The cost of the adding operation equals the size of the added pile.
Your task is to determine the minimum cost at which you can gather all stones in one pile.
To add some challenge, the stone piles built up conspiracy and decided that each pile will let you add to it not more than k times (after that it can only be added to another pile).
Moreover, the piles decided to puzzle you completely and told you q variants (not necessarily distinct) of what k might equal.
Your task is to find the minimum cost for each of q variants.
Input
The first line contains integer n (1 ≤ n ≤ 105) — the number of stone piles. The second line contains n space-separated integers: a1, a2, ..., an (1 ≤ ai ≤ 109) — the initial sizes of the stone piles.
The third line contains integer q (1 ≤ q ≤ 105) — the number of queries. The last line contains q space-separated integers k1, k2, ..., kq (1 ≤ ki ≤ 105) — the values of number k for distinct queries. Note that numbers ki can repeat.
Output
Print q whitespace-separated integers — the answers to the queries in the order, in which the queries are given in the input.
Please, do not use the %lld specifier to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
5
2 3 4 1 1
2
2 3
Output
9 8
Note
In the first sample one way to get the optimal answer goes like this: we add in turns the 4-th and the 5-th piles to the 2-nd one; then we add the 1-st pile to the 3-rd one; we add the 2-nd pile to the 3-rd one. The first two operations cost 1 each; the third one costs 2, the fourth one costs 5 (the size of the 2-nd pile after the first two operations is not 3, it already is 5).
In the second sample you can add the 2-nd pile to the 3-rd one (the operations costs 3); then the 1-st one to the 3-th one (the cost is 2); then the 5-th one to the 4-th one (the costs is 1); and at last, the 4-th one to the 3-rd one (the cost is 2).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
stones = list(map(lambda t : int(t), input().split()))
q = int(input())
queries = list(map(lambda t : int(t), input().split()))
stones.sort()
added_stones = []
added_stones.append(stones[0])
for i in range(1, n, 1):
added_stones.append(stones[i] + added_stones[i - 1])
computed_queries = {}
for qidx, qq in enumerate(queries):
if qq in computed_queries:
queries[qidx] = computed_queries[qq]
continue
i = n - 2
multiplier = 1
cost = 0
while i >= 0:
pp = pow(qq, multiplier)
nexti = i - pp
if nexti < 0:
cost += added_stones[i] * multiplier
break
cost += (added_stones[i] - added_stones[nexti]) * multiplier
multiplier += 1
i = nexti
queries[qidx] = cost
computed_queries[qq] = cost
print(*queries, sep=' ') | python | code_algorithm | [
{
"input": "5\n2 3 4 1 1\n2\n2 3\n",
"output": "9 8\n"
},
{
"input": "3\n1 6 8\n1\n6\n",
"output": "7\n"
},
{
"input": "1\n10\n5\n5 3 7 7 1\n",
"output": "0 0 0 0 0\n"
},
{
"input": "4\n7 4 1 7\n3\n6 8 3\n",
"output": "12 12 12\n"
},
{
"input": "1\n1\n3\n2 1 10\n",
"output": "0 0 0\n"
},
{
"input": "1\n1\n3\n2 1 10\n",
"output": "0 0 0\n"
},
{
"input": "2\n2 9\n5\n4 10 7 3 4\n",
"output": "2 2 2 2 2\n"
},
{
"input": "1\n10\n5\n5 3 7 7 1\n",
"output": "0 0 0 0 0\n"
},
{
"input": "1\n2\n5\n7 3 9 8 1\n",
"output": "0 0 0 0 0\n"
},
{
"input": "2\n9 3\n1\n6\n",
"output": "3\n"
},
{
"input": "1\n7\n4\n6 2 3 3\n",
"output": "0 0 0 0\n"
},
{
"input": "2\n7 4\n1\n7\n",
"output": "4\n"
},
{
"input": "2\n7 10\n2\n2 4\n",
"output": "7 7\n"
},
{
"input": "3\n4 5 4\n2\n10 2\n",
"output": "8 8\n"
},
{
"input": "2\n7 9\n1\n9\n",
"output": "7\n"
},
{
"input": "2\n2 9\n5\n4 10 7 3 4\n",
"output": "2 2 2 2 2\n"
},
{
"input": "3\n1 6 8\n1\n6\n",
"output": "7\n"
},
{
"input": "2\n7 10\n2\n2 4\n",
"output": "7 7\n"
},
{
"input": "1\n7\n4\n6 2 3 3\n",
"output": "0 0 0 0\n"
},
{
"input": "5\n9 5 7 3 3\n1\n3\n",
"output": "21\n"
},
{
"input": "4\n8 10 4 4\n3\n7 8 1\n",
"output": "16 16 28\n"
},
{
"input": "2\n7 4\n1\n7\n",
"output": "4\n"
},
{
"input": "4\n8 10 4 4\n3\n7 8 1\n",
"output": "16 16 28\n"
},
{
"input": "1\n3\n1\n2\n",
"output": "0\n"
},
{
"input": "1\n2\n5\n7 3 9 8 1\n",
"output": "0 0 0 0 0\n"
},
{
"input": "2\n7 9\n1\n9\n",
"output": "7\n"
},
{
"input": "3\n3 7 3\n1\n5\n",
"output": "6\n"
},
{
"input": "4\n7 4 1 7\n3\n6 8 3\n",
"output": "12 12 12\n"
},
{
"input": "2\n9 3\n1\n6\n",
"output": "3\n"
},
{
"input": "5\n9 5 7 3 3\n1\n3\n",
"output": "21\n"
},
{
"input": "3\n4 5 4\n2\n10 2\n",
"output": "8 8\n"
},
{
"input": "1\n3\n1\n2\n",
"output": "0\n"
},
{
"input": "3\n3 7 3\n1\n5\n",
"output": "6\n"
}
] | code_contests | python | 0 | bbfcc7bffc0c697a5172c70c83db4793 |
Little Petya likes permutations a lot. Recently his mom has presented him permutation q1, q2, ..., qn of length n.
A permutation a of length n is a sequence of integers a1, a2, ..., an (1 ≤ ai ≤ n), all integers there are distinct.
There is only one thing Petya likes more than permutations: playing with little Masha. As it turns out, Masha also has a permutation of length n. Petya decided to get the same permutation, whatever the cost may be. For that, he devised a game with the following rules:
* Before the beginning of the game Petya writes permutation 1, 2, ..., n on the blackboard. After that Petya makes exactly k moves, which are described below.
* During a move Petya tosses a coin. If the coin shows heads, he performs point 1, if the coin shows tails, he performs point 2.
1. Let's assume that the board contains permutation p1, p2, ..., pn at the given moment. Then Petya removes the written permutation p from the board and writes another one instead: pq1, pq2, ..., pqn. In other words, Petya applies permutation q (which he has got from his mother) to permutation p.
2. All actions are similar to point 1, except that Petya writes permutation t on the board, such that: tqi = pi for all i from 1 to n. In other words, Petya applies a permutation that is inverse to q to permutation p.
We know that after the k-th move the board contained Masha's permutation s1, s2, ..., sn. Besides, we know that throughout the game process Masha's permutation never occurred on the board before the k-th move. Note that the game has exactly k moves, that is, throughout the game the coin was tossed exactly k times.
Your task is to determine whether the described situation is possible or else state that Petya was mistaken somewhere. See samples and notes to them for a better understanding.
Input
The first line contains two integers n and k (1 ≤ n, k ≤ 100). The second line contains n space-separated integers q1, q2, ..., qn (1 ≤ qi ≤ n) — the permutation that Petya's got as a present. The third line contains Masha's permutation s, in the similar format.
It is guaranteed that the given sequences q and s are correct permutations.
Output
If the situation that is described in the statement is possible, print "YES" (without the quotes), otherwise print "NO" (without the quotes).
Examples
Input
4 1
2 3 4 1
1 2 3 4
Output
NO
Input
4 1
4 3 1 2
3 4 2 1
Output
YES
Input
4 3
4 3 1 2
3 4 2 1
Output
YES
Input
4 2
4 3 1 2
2 1 4 3
Output
YES
Input
4 1
4 3 1 2
2 1 4 3
Output
NO
Note
In the first sample Masha's permutation coincides with the permutation that was written on the board before the beginning of the game. Consequently, that violates the condition that Masha's permutation never occurred on the board before k moves were performed.
In the second sample the described situation is possible, in case if after we toss a coin, we get tails.
In the third sample the possible coin tossing sequence is: heads-tails-tails.
In the fourth sample the possible coin tossing sequence is: heads-heads.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,k=map(int,input().strip().split())
a=list(map(int,input().strip().split()))
b=list(map(int,input().strip().split()))
ups = [[i+1 for i in range(n)]]
downs = [[i+1 for i in range(n)]]
def apply(arr):
out = [0]*n
for i in range(n):
out[i] = arr[a[i]-1]
return out
def unapply(arr):
out = [0]*n
for i in range(n):
out[a[i]-1] = arr[i]
return out
for i in range(k):
ups.append(apply(ups[i]))
for i in range(k):
downs.append(unapply(downs[i]))
earliest = [None, None]
earliestPossible = [None, None]
for i in range(k,-1,-1):
if ups[i] == b:
earliest[0] = i
if downs[i] == b:
earliest[1] = i
# print("YES")
# exit(0)
for i in range(k,-1,-2):
if ups[i] == b:
earliestPossible[0] = i
if downs[i] == b:
earliestPossible[1] = i
if (not earliestPossible[0]) and (not earliestPossible[1]):
print("NO")
exit(0)
if ((not earliestPossible[0]) or earliest[0] < earliestPossible[0]) and ((not earliestPossible[1]) or earliest[1] < earliestPossible[1]):
print("NO")
exit(0)
if ups[0] == b or (ups[1] == b and downs[1] == b and k > 1):
print("NO")
exit(0)
print("YES")
# tem = [i+1 for i in range(n)]
# for i in range(k):
# tem = apply(tem)
# for i in range(k):
# tem = unapply(tem)
# print(tem) | python | code_algorithm | [
{
"input": "4 1\n4 3 1 2\n3 4 2 1\n",
"output": "YES\n"
},
{
"input": "4 1\n4 3 1 2\n2 1 4 3\n",
"output": "NO\n"
},
{
"input": "4 3\n4 3 1 2\n3 4 2 1\n",
"output": "YES\n"
},
{
"input": "4 1\n2 3 4 1\n1 2 3 4\n",
"output": "NO\n"
},
{
"input": "4 2\n4 3 1 2\n2 1 4 3\n",
"output": "YES\n"
},
{
"input": "4 2\n2 1 4 3\n2 1 4 3\n",
"output": "NO\n"
},
{
"input": "13 2\n2 3 4 5 6 7 8 9 10 11 12 13 1\n3 4 5 6 7 8 9 10 11 12 13 1 2\n",
"output": "YES\n"
},
{
"input": "1 1\n1\n1\n",
"output": "NO\n"
},
{
"input": "8 10\n2 3 1 5 6 7 8 4\n2 3 1 4 5 6 7 8\n",
"output": "YES\n"
},
{
"input": "9 3\n2 3 4 5 6 7 8 9 1\n3 4 5 6 7 8 9 1 2\n",
"output": "NO\n"
},
{
"input": "55 28\n34 11 18 6 16 43 12 25 48 27 35 17 19 14 33 30 7 53 52 2 15 10 44 1 37 28 22 49 46 8 45 39 21 47 40 20 41 51 13 24 42 55 23 4 36 38 50 31 3 9 54 32 5 29 26\n34 11 18 6 16 43 12 25 48 27 35 17 19 14 33 30 7 53 52 2 15 10 44 1 37 28 22 49 46 8 45 39 21 47 40 20 41 51 13 24 42 55 23 4 36 38 50 31 3 9 54 32 5 29 26\n",
"output": "YES\n"
},
{
"input": "5 3\n2 1 4 3 5\n2 1 4 3 5\n",
"output": "NO\n"
},
{
"input": "4 1\n2 1 4 3\n2 1 4 3\n",
"output": "YES\n"
},
{
"input": "10 29\n2 1 4 5 3 7 8 9 10 6\n2 1 5 3 4 8 9 10 6 7\n",
"output": "YES\n"
},
{
"input": "55 28\n35 33 46 8 11 13 14 26 42 38 1 7 34 5 2 21 17 45 54 43 4 18 27 50 25 10 29 48 6 16 22 28 55 53 49 41 39 23 40 47 51 37 36 19 9 32 52 12 24 3 20 15 30 44 31\n5 52 24 16 7 27 48 21 18 8 14 28 29 12 47 53 17 31 54 41 30 55 10 35 25 4 38 46 23 34 33 3 15 6 11 20 9 26 42 37 43 45 51 19 22 50 39 32 1 49 36 40 13 44 2\n",
"output": "YES\n"
},
{
"input": "55 30\n51 43 20 22 50 48 35 6 49 7 52 29 34 45 9 55 47 36 41 54 1 4 39 46 25 26 12 28 14 3 33 23 11 2 53 8 40 32 13 37 19 16 18 42 27 31 17 44 30 24 15 38 10 21 5\n30 31 51 22 43 32 10 38 54 53 44 12 24 14 20 34 47 11 41 15 49 4 5 36 25 26 27 28 29 1 6 55 48 46 7 52 40 16 50 37 19 13 33 39 45 8 17 23 21 18 3 42 35 9 2\n",
"output": "NO\n"
},
{
"input": "4 11\n2 3 4 1\n2 3 4 1\n",
"output": "YES\n"
},
{
"input": "4 2\n2 3 4 1\n1 2 3 4\n",
"output": "NO\n"
},
{
"input": "5 1\n2 1 4 3 5\n2 1 4 3 5\n",
"output": "YES\n"
},
{
"input": "8 9\n2 3 1 5 6 7 8 4\n2 3 1 4 5 6 7 8\n",
"output": "YES\n"
},
{
"input": "5 99\n2 1 4 3 5\n2 1 4 3 5\n",
"output": "NO\n"
},
{
"input": "10 10\n2 3 1 5 6 7 8 4 10 9\n2 3 1 4 5 6 7 8 10 9\n",
"output": "NO\n"
},
{
"input": "4 3\n2 1 4 3\n2 1 4 3\n",
"output": "NO\n"
},
{
"input": "4 50\n2 3 4 1\n3 4 1 2\n",
"output": "YES\n"
},
{
"input": "2 99\n2 1\n2 1\n",
"output": "NO\n"
},
{
"input": "2 2\n2 1\n1 2\n",
"output": "NO\n"
},
{
"input": "2 3\n2 1\n2 1\n",
"output": "NO\n"
},
{
"input": "10 9\n2 3 1 5 6 7 8 4 10 9\n2 3 1 4 5 6 7 8 10 9\n",
"output": "YES\n"
},
{
"input": "6 3\n2 3 4 5 6 1\n2 3 4 5 6 1\n",
"output": "YES\n"
},
{
"input": "1 2\n1\n1\n",
"output": "NO\n"
},
{
"input": "9 100\n2 3 1 5 6 7 8 9 4\n2 3 1 4 5 6 7 8 9\n",
"output": "NO\n"
},
{
"input": "55 30\n32 37 9 26 13 6 44 1 2 38 11 12 36 49 10 46 5 21 43 24 28 31 15 51 55 27 29 18 41 17 20 8 45 16 52 30 39 53 3 35 19 33 50 54 47 34 48 14 4 42 22 40 23 25 7\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55\n",
"output": "NO\n"
},
{
"input": "10 99\n2 3 1 5 6 7 8 4 10 9\n2 3 1 4 5 6 7 8 10 9\n",
"output": "YES\n"
},
{
"input": "3 99\n2 3 1\n2 3 1\n",
"output": "YES\n"
},
{
"input": "4 3\n4 3 1 2\n2 1 4 3\n",
"output": "NO\n"
},
{
"input": "9 10\n2 3 1 5 6 7 8 9 4\n2 3 1 4 5 6 7 8 9\n",
"output": "NO\n"
},
{
"input": "3 100\n2 3 1\n2 3 1\n",
"output": "YES\n"
},
{
"input": "55 28\n25 13 15 37 5 7 42 9 50 8 14 21 3 30 29 38 1 51 52 20 16 27 6 41 48 4 49 32 2 44 55 10 33 34 54 23 40 26 12 31 39 28 43 46 53 19 22 35 36 47 24 17 11 45 18\n17 29 13 26 5 23 6 10 8 32 53 39 2 11 3 21 52 55 46 20 12 47 36 51 1 38 22 42 15 14 40 28 33 34 48 49 4 16 41 37 24 7 43 30 54 44 50 25 27 9 18 19 45 35 31\n",
"output": "YES\n"
},
{
"input": "10 100\n2 3 1 5 6 7 8 4 10 9\n2 3 1 4 5 6 7 8 10 9\n",
"output": "NO\n"
},
{
"input": "4 3\n2 1 4 3\n4 3 1 2\n",
"output": "NO\n"
}
] | code_contests | python | 0 | 07e833a312366f0558dffebf48ede084 |
The little girl loves the problems on array queries very much.
One day she came across a rather well-known problem: you've got an array of n elements (the elements of the array are indexed starting from 1); also, there are q queries, each one is defined by a pair of integers l_i, r_i (1 ≤ l_i ≤ r_i ≤ n). You need to find for each query the sum of elements of the array with indexes from l_i to r_i, inclusive.
The little girl found the problem rather boring. She decided to reorder the array elements before replying to the queries in a way that makes the sum of query replies maximum possible. Your task is to find the value of this maximum sum.
Input
The first line contains two space-separated integers n (1 ≤ n ≤ 2⋅10^5) and q (1 ≤ q ≤ 2⋅10^5) — the number of elements in the array and the number of queries, correspondingly.
The next line contains n space-separated integers a_i (1 ≤ a_i ≤ 2⋅10^5) — the array elements.
Each of the following q lines contains two space-separated integers l_i and r_i (1 ≤ l_i ≤ r_i ≤ n) — the i-th query.
Output
In a single line print, a single integer — the maximum sum of query replies after the array elements are reordered.
Please, do not use the %lld specifier to read or write 64-bit integers in C++. It is preferred to use the cin, cout streams or the %I64d specifier.
Examples
Input
3 3
5 3 2
1 2
2 3
1 3
Output
25
Input
5 3
5 2 4 1 3
1 5
2 3
2 3
Output
33
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,m = map(int,input().split())
a = list(map(int,input().split()))
l = [0]*(n+2)
for i in range(m):
x,y=map(int,input().split())
l[x] += 1
l[y+1] -= 1
for i in range(2, n+2):
l[i] += l[i-1]
l.sort(reverse=True)
a.sort(reverse=True)
# print(l, a)
ans=0
for i in range(n):
ans += l[i]*a[i]
print(ans)
| python | code_algorithm | [
{
"input": "5 3\n5 2 4 1 3\n1 5\n2 3\n2 3\n",
"output": "33\n"
},
{
"input": "3 3\n5 3 2\n1 2\n2 3\n1 3\n",
"output": "25\n"
},
{
"input": "31 48\n45 19 16 42 38 18 50 7 28 40 39 25 45 14 36 18 27 30 16 4 22 6 1 23 16 47 14 35 27 47 2\n6 16\n11 28\n4 30\n25 26\n11 30\n5 9\n4 17\n15 17\n10 25\n15 26\n1 3\n9 26\n8 29\n16 30\n5 24\n27 30\n9 10\n22 29\n2 6\n15 24\n6 21\n19 21\n4 28\n1 7\n18 21\n10 22\n6 15\n14 28\n4 29\n12 13\n19 29\n5 6\n13 31\n21 27\n9 25\n6 18\n6 8\n28 30\n2 4\n15 21\n1 1\n8 30\n3 31\n11 27\n28 29\n6 22\n20 22\n9 25\n",
"output": "17471\n"
},
{
"input": "34 21\n23 38 16 49 44 50 48 34 33 19 18 31 11 15 20 47 44 30 39 33 45 46 1 13 27 16 31 36 17 23 38 5 30 16\n8 16\n14 27\n8 26\n1 8\n5 6\n23 28\n4 33\n13 30\n12 30\n11 30\n9 21\n1 14\n15 22\n4 11\n5 24\n8 20\n17 33\n6 9\n3 14\n25 34\n10 17\n",
"output": "9382\n"
},
{
"input": "16 13\n40 32 15 16 35 36 45 23 30 42 25 8 29 21 39 23\n2 9\n3 11\n8 9\n4 14\n1 6\n5 10\n5 14\n5 11\n13 13\n2 8\n9 16\n6 10\n7 8\n",
"output": "2838\n"
},
{
"input": "3 2\n1 2 3\n2 3\n1 2\n",
"output": "9\n"
},
{
"input": "22 7\n44 41 40 41 37 42 46 16 50 47 30 7 32 6 20 14 47 25 11 1 35 12\n1 10\n10 20\n4 5\n1 8\n2 12\n8 8\n2 16\n",
"output": "2202\n"
}
] | code_contests | python | 0.8 | 4a905d242c7ea515049ee7acc043ddc9 |
Fox Ciel has a robot on a 2D plane. Initially it is located in (0, 0). Fox Ciel code a command to it. The command was represented by string s. Each character of s is one move operation. There are four move operations at all:
* 'U': go up, (x, y) → (x, y+1);
* 'D': go down, (x, y) → (x, y-1);
* 'L': go left, (x, y) → (x-1, y);
* 'R': go right, (x, y) → (x+1, y).
The robot will do the operations in s from left to right, and repeat it infinite times. Help Fox Ciel to determine if after some steps the robot will located in (a, b).
Input
The first line contains two integers a and b, ( - 109 ≤ a, b ≤ 109). The second line contains a string s (1 ≤ |s| ≤ 100, s only contains characters 'U', 'D', 'L', 'R') — the command.
Output
Print "Yes" if the robot will be located at (a, b), and "No" otherwise.
Examples
Input
2 2
RU
Output
Yes
Input
1 2
RU
Output
No
Input
-1 1000000000
LRRLU
Output
Yes
Input
0 0
D
Output
Yes
Note
In the first and second test case, command string is "RU", so the robot will go right, then go up, then right, and then up and so on.
The locations of its moves are (0, 0) → (1, 0) → (1, 1) → (2, 1) → (2, 2) → ...
So it can reach (2, 2) but not (1, 2).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | target = tuple(map(int, input().split()))
s = input()
#print(target)
#print(s)
ok = False
pos = (0, 0)
for c in s:
if c == 'L': pos = (pos[0]-1, pos[1])
if c == 'R': pos = (pos[0]+1, pos[1])
if c == 'U': pos = (pos[0], pos[1]+1)
if c == 'D': pos = (pos[0], pos[1]-1)
if pos == target: ok = True
if pos == (0, 0): #termin pe pozitia din care am pornit
if ok: print('Yes')
else: print('No')
exit()
if pos[0] == 0:
if target[1] * pos[1] < 0: raport = 0
else: raport = target[1] // pos[1]
else:
if target[0] * pos[0] < 0: raport = 0
else: raport = target[0] // pos[0]
if raport > 0: raport = max(0, raport - 1000)
if raport < 0: raport = min(0, raport + 1000)
#print('Ajung in (%i, %i) dupa o executie, si raport = %i' %(pos[0], pos[1], raport))
coord = (pos[0] * raport, pos[1]*raport)
for rep in range(0, 10**4):
if coord == target: ok = True
for c in s:
if c == 'L': coord = (coord[0]-1, coord[1])
if c == 'R': coord = (coord[0]+1, coord[1])
if c == 'U': coord = (coord[0], coord[1]+1)
if c == 'D': coord = (coord[0], coord[1]-1)
if coord == target: ok = True
if ok: print('Yes')
else: print('No')
| python | code_algorithm | [
{
"input": "0 0\nD\n",
"output": "Yes\n"
},
{
"input": "-1 1000000000\nLRRLU\n",
"output": "Yes\n"
},
{
"input": "2 2\nRU\n",
"output": "Yes\n"
},
{
"input": "1 2\nRU\n",
"output": "No\n"
},
{
"input": "999999999 -999999999\nRRRRRRRRRRRRRRRRRRRRRRRRRDDDDDDDDDDDDDDDDDDDDDDDDDLLLLLLLLLLLLLLLLLLLLLLLUUUUUUUUUUUUUUUUUUUUUUU\n",
"output": "Yes\n"
},
{
"input": "0 -3\nRDDL\n",
"output": "No\n"
},
{
"input": "0 0\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "100 100\nRUL\n",
"output": "No\n"
},
{
"input": "1000000000 1000000000\nRURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURURU\n",
"output": "Yes\n"
},
{
"input": "999999999 0\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR\n",
"output": "Yes\n"
},
{
"input": "1 1\nLD\n",
"output": "No\n"
},
{
"input": "27033101 54066203\nUDDDRDLLLRUUDDLRDLDRLRUDDULRLLRULR\n",
"output": "No\n"
},
{
"input": "4 3\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "-261597957 418556728\nLLLDLUDUULLRDDULLRRUDRDLULRLRLLRRUUDRRLRUDLRRLUDRDLLUUDUULRURLDLULUUULDDUURLRUDURRL\n",
"output": "Yes\n"
},
{
"input": "1000000000 0\nRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR\n",
"output": "Yes\n"
},
{
"input": "-1000000000 -1000000000\nDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDLDL\n",
"output": "Yes\n"
},
{
"input": "551922835 183974295\nDUDUUULDRLRURRDULRRUDDLRLLUULLRLRDRDRR\n",
"output": "No\n"
},
{
"input": "4 4\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "485940814 728911221\nURURU\n",
"output": "Yes\n"
},
{
"input": "3 3\nUURR\n",
"output": "No\n"
},
{
"input": "0 123456789\nRRULL\n",
"output": "Yes\n"
},
{
"input": "-2 0\nULLLDDRRRR\n",
"output": "Yes\n"
},
{
"input": "4 4\nUUUURRRRDDDDLLLL\n",
"output": "Yes\n"
},
{
"input": "4 2\nUURRDL\n",
"output": "No\n"
},
{
"input": "-532674020 532674026\nUURLLL\n",
"output": "No\n"
},
{
"input": "0 0\nUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLR\n",
"output": "Yes\n"
},
{
"input": "-771928144 -3\nRUDULULDRDLLLULDDUDDDDUDULRULRUULDDDURUDLUURULLLDLLDDRDDRLRURUULRUURRUDLDLDDRLLULRRDRRLLUULUDRUUDRRD\n",
"output": "Yes\n"
},
{
"input": "987654321 987654321\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "647999516 -809999401\nUDLDDLLULUDDLLDUULRRRDLUDDLDDLRLRRDRURURDRRDRULUDRDULRULLRRLLDDRLRRUDRURDUULUDLRRLRDR\n",
"output": "Yes\n"
},
{
"input": "-843450986 632588242\nLURLULULRUDUDULRDDLUL\n",
"output": "Yes\n"
},
{
"input": "-10 -10\nRU\n",
"output": "No\n"
},
{
"input": "-2 -2\nUURR\n",
"output": "No\n"
},
{
"input": "1000000000 1000000000\nURURURUR\n",
"output": "Yes\n"
},
{
"input": "4 6\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "0 1\nLUUR\n",
"output": "No\n"
},
{
"input": "2 6\nRUUUURLDDDL\n",
"output": "Yes\n"
},
{
"input": "356922591 -2\nRRLDLDUDRUUUULUUDDULDDUDD\n",
"output": "No\n"
},
{
"input": "609504072 609504074\nULRLUDLDDR\n",
"output": "No\n"
},
{
"input": "0 -1\nU\n",
"output": "No\n"
},
{
"input": "1000000000 1000000000\nUURRDL\n",
"output": "Yes\n"
},
{
"input": "311692421 -129871846\nLLLDURULDDDDUDDURRLUUDRLDDRDURDDRUDUURLUDUDLDRUDDDUUURDRRUDRDRDURLLDURUUDRLDLDURRRRRRDULURDRU\n",
"output": "Yes\n"
},
{
"input": "109928480 219856920\nLRURLRLURDRDLDRDLRDDUUDDLULDRRUUURRUDLLUULUUUR\n",
"output": "No\n"
},
{
"input": "-2 -2\nUR\n",
"output": "No\n"
},
{
"input": "987654321 2\nUURDD\n",
"output": "Yes\n"
},
{
"input": "397346346 1\nDDURRUURLDLRRLULD\n",
"output": "Yes\n"
},
{
"input": "0 1\nUDLR\n",
"output": "Yes\n"
},
{
"input": "1 1\nURDLDL\n",
"output": "Yes\n"
},
{
"input": "-491226083 -49122610\nUDRLDURLDLLLDUDURLRDUUDDUUULUDRDRDUULURDRLLDDDLUDUURLUUDLLDULLLLDDLDDUU\n",
"output": "Yes\n"
},
{
"input": "1 1\nUURRDDLL\n",
"output": "No\n"
},
{
"input": "-199335150 39867031\nLLURRDUULRUDDRDUUULDLDRDDLURDRLDRLLLRRRRRULRRRUUDD\n",
"output": "No\n"
},
{
"input": "-284973644 -1\nDLULLDLRUUDRR\n",
"output": "Yes\n"
},
{
"input": "5 5\nUDLR\n",
"output": "No\n"
},
{
"input": "352820537 -764444491\nRDDUDLUDDUDLRRRDRRRDRRDUDUDDURLRRLDRLLRLLLLUULUDRURRDRLDDLLDRDURDUDRUDDLUDRLURUDRURDRDDLDRLDLDLLU\n",
"output": "Yes\n"
},
{
"input": "0 1\nD\n",
"output": "No\n"
},
{
"input": "4 7\nUURRDL\n",
"output": "No\n"
},
{
"input": "-100 -100\nRU\n",
"output": "No\n"
},
{
"input": "-528551525 0\nUDRLRRLDLDLURRRRULDLRLRLURUUDDLRLLDRRULLUDLURDLUUULLLRUUUDRRURLDUDULDDRDDDRDL\n",
"output": "Yes\n"
},
{
"input": "-1 -1\nUR\n",
"output": "No\n"
},
{
"input": "-1 0\nR\n",
"output": "No\n"
},
{
"input": "1 1\nUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLRUDLR\n",
"output": "No\n"
},
{
"input": "285102789 570205594\nRRDULRULULRRDUURRLURUDDULLRDUL\n",
"output": "No\n"
},
{
"input": "-1 -1\nRU\n",
"output": "No\n"
},
{
"input": "-458990423 -229495204\nDLLDDRLUDLRLUL\n",
"output": "No\n"
},
{
"input": "-1000000000 -500000000\nURR\n",
"output": "No\n"
},
{
"input": "825368095 -825368096\nRD\n",
"output": "No\n"
},
{
"input": "497684357 829473929\nRRLDUUURULURRLLRRLRLURRLDU\n",
"output": "Yes\n"
}
] | code_contests | python | 0 | e00d702d3d0e3904e2c8e47e6c0181c8 |
You want to arrange n integers a1, a2, ..., an in some order in a row. Let's define the value of an arrangement as the sum of differences between all pairs of adjacent integers.
More formally, let's denote some arrangement as a sequence of integers x1, x2, ..., xn, where sequence x is a permutation of sequence a. The value of such an arrangement is (x1 - x2) + (x2 - x3) + ... + (xn - 1 - xn).
Find the largest possible value of an arrangement. Then, output the lexicographically smallest sequence x that corresponds to an arrangement of the largest possible value.
Input
The first line of the input contains integer n (2 ≤ n ≤ 100). The second line contains n space-separated integers a1, a2, ..., an (|ai| ≤ 1000).
Output
Print the required sequence x1, x2, ..., xn. Sequence x should be the lexicographically smallest permutation of a that corresponds to an arrangement of the largest possible value.
Examples
Input
5
100 -100 50 0 -50
Output
100 -50 0 50 -100
Note
In the sample test case, the value of the output arrangement is (100 - ( - 50)) + (( - 50) - 0) + (0 - 50) + (50 - ( - 100)) = 200. No other arrangement has a larger value, and among all arrangements with the value of 200, the output arrangement is the lexicographically smallest one.
Sequence x1, x2, ... , xp is lexicographically smaller than sequence y1, y2, ... , yp if there exists an integer r (0 ≤ r < p) such that x1 = y1, x2 = y2, ... , xr = yr and xr + 1 < yr + 1.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | # t=int(input())
# import math
# for _ in range(t):
# n,k=list(map(int,input().split()))
# s=input()
# a=[]
# summer=0
# for i in range(len(s)):
# if(s[i]=='1'):
# a.append(i)
# i=0
# while(i<len(a)-1):
# dist=a[i+1]-k-1-(a[i]+k+1)+1
# # print(a,dist)
# if(dist>0):
# # summer+=(dist//k)
# summer+=(math.ceil(dist/(k+1)))
# i+=1
# if(len(a)>0):
# dist=a[0]-k
# if(dist>0):
# summer+=(math.ceil(dist/(k+1)))
# dist=n-1-a[-1]-k
# if(dist>0):
# summer+=(math.ceil(dist/(k+1)))
# else:
# summer+=(math.ceil(n/(k+1)))
# print(summer)
n=int(input())
s=list(map(int,input().split()))
s.sort()
print(s[n-1],end=" ")
for a in s[1:-1]:
print(a,end =" ")
print(s[0]) | python | code_algorithm | [
{
"input": "5\n100 -100 50 0 -50\n",
"output": "100 -50 0 50 -100\n"
},
{
"input": "50\n-262 -377 -261 903 547 759 -800 -53 670 92 758 109 547 877 152 -901 -318 -527 -388 24 139 -227 413 -135 811 -886 -22 -526 -643 -431 284 609 -745 -62 323 -441 743 -800 86 862 587 -513 -468 -651 -760 197 141 -414 -909 438\n",
"output": "903 -901 -886 -800 -800 -760 -745 -651 -643 -527 -526 -513 -468 -441 -431 -414 -388 -377 -318 -262 -261 -227 -135 -62 -53 -22 24 86 92 109 139 141 152 197 284 323 413 438 547 547 587 609 670 743 758 759 811 862 877 -909\n"
},
{
"input": "2\n1000 -1000\n",
"output": "1000 -1000\n"
},
{
"input": "3\n-1 -1 -1\n",
"output": "-1 -1 -1\n"
},
{
"input": "100\n-790 341 910 905 -779 279 696 -375 525 -21 -2 751 -887 764 520 -844 850 -537 -882 -183 139 -397 561 -420 -991 691 587 -93 -701 -957 -89 227 233 545 934 309 -26 454 -336 -994 -135 -840 -320 -387 -943 650 628 -583 701 -708 -881 287 -932 -265 -312 -757 695 985 -165 -329 -4 -462 -627 798 -124 -539 843 -492 -967 -782 879 -184 -351 -385 -713 699 -477 828 219 961 -170 -542 877 -718 417 152 -905 181 301 920 685 -502 518 -115 257 998 -112 -234 -223 -396\n",
"output": "998 -991 -967 -957 -943 -932 -905 -887 -882 -881 -844 -840 -790 -782 -779 -757 -718 -713 -708 -701 -627 -583 -542 -539 -537 -502 -492 -477 -462 -420 -397 -396 -387 -385 -375 -351 -336 -329 -320 -312 -265 -234 -223 -184 -183 -170 -165 -135 -124 -115 -112 -93 -89 -26 -21 -4 -2 139 152 181 219 227 233 257 279 287 301 309 341 417 454 518 520 525 545 561 587 628 650 685 691 695 696 699 701 751 764 798 828 843 850 877 879 905 910 920 934 961 985 -994\n"
},
{
"input": "2\n-1000 1000\n",
"output": "1000 -1000\n"
},
{
"input": "100\n144 -534 -780 -1 -259 -945 -992 -967 -679 -239 -22 387 130 -908 140 -270 16 646 398 599 -631 -231 687 -505 89 77 584 162 124 132 33 271 212 734 350 -678 969 43 487 -689 -432 -225 -603 801 -828 -684 349 318 109 723 33 -247 719 368 -286 217 260 77 -618 955 408 994 -313 -341 578 609 60 900 222 -779 -507 464 -147 -789 -477 -235 -407 -432 35 300 -53 -896 -476 927 -293 -869 -852 -566 -759 95 506 -914 -405 -621 319 -622 -49 -334 328 -104\n",
"output": "994 -967 -945 -914 -908 -896 -869 -852 -828 -789 -780 -779 -759 -689 -684 -679 -678 -631 -622 -621 -618 -603 -566 -534 -507 -505 -477 -476 -432 -432 -407 -405 -341 -334 -313 -293 -286 -270 -259 -247 -239 -235 -231 -225 -147 -104 -53 -49 -22 -1 16 33 33 35 43 60 77 77 89 95 109 124 130 132 140 144 162 212 217 222 260 271 300 318 319 328 349 350 368 387 398 408 464 487 506 578 584 599 609 646 687 719 723 734 801 900 927 955 969 -992\n"
},
{
"input": "10\n764 -367 0 963 -939 -795 -26 -49 948 -282\n",
"output": "963 -795 -367 -282 -49 -26 0 764 948 -939\n"
},
{
"input": "100\n853 752 931 -453 -943 -118 -772 -814 791 191 -83 -373 -748 -136 -286 250 627 292 -48 -896 -296 736 -628 -376 -246 -495 366 610 228 664 -951 -952 811 192 -730 -377 319 799 753 166 827 501 157 -834 -776 424 655 -827 549 -487 608 -643 419 349 -88 95 231 -520 -508 -105 -727 568 -241 286 586 -956 -880 892 866 22 658 832 -216 -54 491 -500 -687 393 24 129 946 303 931 563 -269 -203 -251 647 -824 -163 248 -896 -133 749 -619 -212 -2 491 287 219\n",
"output": "946 -952 -951 -943 -896 -896 -880 -834 -827 -824 -814 -776 -772 -748 -730 -727 -687 -643 -628 -619 -520 -508 -500 -495 -487 -453 -377 -376 -373 -296 -286 -269 -251 -246 -241 -216 -212 -203 -163 -136 -133 -118 -105 -88 -83 -54 -48 -2 22 24 95 129 157 166 191 192 219 228 231 248 250 286 287 292 303 319 349 366 393 419 424 491 491 501 549 563 568 586 608 610 627 647 655 658 664 736 749 752 753 791 799 811 827 832 853 866 892 931 931 -956\n"
},
{
"input": "100\n720 331 -146 -935 399 248 525 -669 614 -245 320 229 842 -894 -73 584 -458 -975 -604 -78 607 -120 -377 409 -743 862 -969 980 105 841 -795 996 696 -759 -482 624 -578 421 -717 -553 -652 -268 405 426 642 870 -650 -812 178 -882 -237 -737 -724 358 407 714 759 779 -899 -726 398 -663 -56 -736 -825 313 -746 117 -457 330 -925 497 332 -794 -506 -811 -990 -799 -343 -380 598 926 671 967 -573 -687 741 484 -641 -698 -251 -391 23 692 337 -639 126 8 -915 -386\n",
"output": "996 -975 -969 -935 -925 -915 -899 -894 -882 -825 -812 -811 -799 -795 -794 -759 -746 -743 -737 -736 -726 -724 -717 -698 -687 -669 -663 -652 -650 -641 -639 -604 -578 -573 -553 -506 -482 -458 -457 -391 -386 -380 -377 -343 -268 -251 -245 -237 -146 -120 -78 -73 -56 8 23 105 117 126 178 229 248 313 320 330 331 332 337 358 398 399 405 407 409 421 426 484 497 525 584 598 607 614 624 642 671 692 696 714 720 741 759 779 841 842 862 870 926 967 980 -990\n"
},
{
"input": "5\n1 2 3 4 5\n",
"output": "5 2 3 4 1\n"
},
{
"input": "2\n0 0\n",
"output": "0 0\n"
},
{
"input": "20\n262 -689 -593 161 -678 -555 -633 -697 369 258 673 50 833 737 -650 198 -651 -621 -396 939\n",
"output": "939 -689 -678 -651 -650 -633 -621 -593 -555 -396 50 161 198 258 262 369 673 737 833 -697\n"
},
{
"input": "100\n-657 320 -457 -472 -423 -227 -902 -520 702 -27 -103 149 268 -922 307 -292 377 730 117 1000 935 459 -502 796 -494 892 -523 866 166 -248 57 -606 -96 -948 988 194 -687 832 -425 28 -356 -884 688 353 225 204 -68 960 -929 -312 -479 381 512 -274 -505 -260 -506 572 226 -822 -13 325 -370 403 -714 494 339 283 356 327 159 -151 -13 -760 -159 -991 498 19 -159 583 178 -50 -421 -679 -978 334 688 -99 117 -988 371 693 946 -58 -699 -133 62 693 535 -375\n",
"output": "1000 -988 -978 -948 -929 -922 -902 -884 -822 -760 -714 -699 -687 -679 -657 -606 -523 -520 -506 -505 -502 -494 -479 -472 -457 -425 -423 -421 -375 -370 -356 -312 -292 -274 -260 -248 -227 -159 -159 -151 -133 -103 -99 -96 -68 -58 -50 -27 -13 -13 19 28 57 62 117 117 149 159 166 178 194 204 225 226 268 283 307 320 325 327 334 339 353 356 371 377 381 403 459 494 498 512 535 572 583 688 688 693 693 702 730 796 832 866 892 935 946 960 988 -991\n"
},
{
"input": "100\n9 857 227 -593 -983 -439 17 -523 -354 -189 780 -267 771 -981 943 620 -832 79 761 -943 218 -966 75 131 -596 534 51 796 -612 -381 -690 -353 -170 648 804 -256 257 -16 964 -728 310 50 453 737 -228 -625 618 841 -102 974 -850 -641 -788 231 -982 -84 -917 942 -913 -768 -83 298 388 447 -490 271 -949 976 -820 -876 -822 -188 -306 877 219 854 561 -307 -920 916 -925 -591 -149 -166 -572 860 -217 -831 -552 822 355 -150 203 -710 530 910 889 964 -125 -597\n",
"output": "976 -982 -981 -966 -949 -943 -925 -920 -917 -913 -876 -850 -832 -831 -822 -820 -788 -768 -728 -710 -690 -641 -625 -612 -597 -596 -593 -591 -572 -552 -523 -490 -439 -381 -354 -353 -307 -306 -267 -256 -228 -217 -189 -188 -170 -166 -150 -149 -125 -102 -84 -83 -16 9 17 50 51 75 79 131 203 218 219 227 231 257 271 298 310 355 388 447 453 530 534 561 618 620 648 737 761 771 780 796 804 822 841 854 857 860 877 889 910 916 942 943 964 964 974 -983\n"
},
{
"input": "6\n1 1 1 2 2 2\n",
"output": "2 1 1 2 2 1\n"
}
] | code_contests | python | 0 | 023f4a03feb28558dd65db88f92645fc |
Fox Ciel is playing a mobile puzzle game called "Two Dots". The basic levels are played on a board of size n × m cells, like this:
<image>
Each cell contains a dot that has some color. We will use different uppercase Latin characters to express different colors.
The key of this game is to find a cycle that contain dots of same color. Consider 4 blue dots on the picture forming a circle as an example. Formally, we call a sequence of dots d1, d2, ..., dk a cycle if and only if it meets the following condition:
1. These k dots are different: if i ≠ j then di is different from dj.
2. k is at least 4.
3. All dots belong to the same color.
4. For all 1 ≤ i ≤ k - 1: di and di + 1 are adjacent. Also, dk and d1 should also be adjacent. Cells x and y are called adjacent if they share an edge.
Determine if there exists a cycle on the field.
Input
The first line contains two integers n and m (2 ≤ n, m ≤ 50): the number of rows and columns of the board.
Then n lines follow, each line contains a string consisting of m characters, expressing colors of dots in each line. Each character is an uppercase Latin letter.
Output
Output "Yes" if there exists a cycle, and "No" otherwise.
Examples
Input
3 4
AAAA
ABCA
AAAA
Output
Yes
Input
3 4
AAAA
ABCA
AADA
Output
No
Input
4 4
YYYR
BYBY
BBBY
BBBY
Output
Yes
Input
7 6
AAAAAB
ABBBAB
ABAAAB
ABABBB
ABAAAB
ABBBAB
AAAAAB
Output
Yes
Input
2 13
ABCDEFGHIJKLM
NOPQRSTUVWXYZ
Output
No
Note
In first sample test all 'A' form a cycle.
In second sample there is no such cycle.
The third sample is displayed on the picture above ('Y' = Yellow, 'B' = Blue, 'R' = Red).
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | '''
Zijian He
1429876
'''
# Import
from sys import setrecursionlimit
setrecursionlimit(10**6)
# Function from class
class Graph:
def __init__ (self):
self._alist = {}
def add_vertex (self, vertex):
if vertex not in self._alist:
self._alist[vertex] = set()
def add_edge (self, source, destination):
self.add_vertex(source)
self.add_vertex(destination)
self._alist[source].add(destination)
def is_edge (self, source, destination):
return (self.is_vertex(source)
and destination in self._alist[source])
def is_vertex (self, vertex):
return vertex in self._alist
def neighbours (self, vertex):
return self._alist[vertex]
def vertices (self):
return self._alist.keys()
class UndirectedGraph (Graph):
def add_edge (self, a, b):
super().add_edge (a, b)
super().add_edge (b, a)
def depth_first_search(g, v):
reached = {}
def do_dfs(curr, prev):
if curr in reached:
return
reached[curr] = prev
for succ in g.neighbours(curr):
do_dfs(succ, curr)
do_dfs(v, v)
return reached
#-----------------------------------------------------------------------
# Declaire the variables for checking the cycle
Detect = False
vertex = {}
def dfs_v2(g, curr, prev):
global Detect
global vertex
if Detect:
return
vertex[curr] = True
for succ in g.neighbours(curr):
if vertex[succ] and succ != prev:
Detect = True
return
if not vertex[succ]:
dfs_v2(g, succ, curr)
def cycle(g):
global Detect
global vertex
# Initialize all the node as unmarked
for i in g.vertices():
vertex[i] = False
# Check throughout the node
for j in g.vertices():
if not vertex[j]:
dfs_v2(g, j, j)
if Detect:
break
return
# ----------------------------------------------------------------------
# Process the input
row, col = map(int, input().split(" "))
rows = []
for i in range(row):
rows.append(input())
# Set node as a dictionary
node = {}
for i in range(row):
for j in range(col):
node[i * col + j] = rows[i][j]
# Set up the graph
result_Graph = UndirectedGraph()
# Connecting the node with same color
for i in range(row * col):
result_Graph.add_vertex(i)
try:
if node[i] == node[i + 1] and (i % col) != (col - 1):
result_Graph.add_edge(i, i + 1)
if node[i] == node[i + col]:
result_Graph.add_edge(i, i + col)
except:
continue
# Main function
cycle(result_Graph)
if Detect:
print("Yes")
else:
print("No")
| python | code_algorithm | [
{
"input": "2 13\nABCDEFGHIJKLM\nNOPQRSTUVWXYZ\n",
"output": "No\n"
},
{
"input": "7 6\nAAAAAB\nABBBAB\nABAAAB\nABABBB\nABAAAB\nABBBAB\nAAAAAB\n",
"output": "Yes\n"
},
{
"input": "3 4\nAAAA\nABCA\nAAAA\n",
"output": "Yes\n"
},
{
"input": "3 4\nAAAA\nABCA\nAADA\n",
"output": "No\n"
},
{
"input": "4 4\nYYYR\nBYBY\nBBBY\nBBBY\n",
"output": "Yes\n"
},
{
"input": "10 10\nHIICQRHPUJ\nBCDUKHMBFK\nPFTUIDOBOE\nQQPITLRKUP\nERMUJMOSMF\nMRSICEILQB\nODIGFNCHFR\nGHIOAFLHJH\nFBLAQNGEIF\nFDLEGDUTNG\n",
"output": "No\n"
},
{
"input": "2 2\nAA\nAB\n",
"output": "No\n"
},
{
"input": "2 50\nDADCDBCCDAACDBCAACADBCBDBACCCCDADCBACADBCCBDBCCBCC\nDADAADCABBBACCDDBABBBDCBACBCCCCDDADCDABADDDCABACDB\n",
"output": "Yes\n"
},
{
"input": "50 2\nAA\nCD\nEE\nFC\nED\nAF\nFC\nAD\nBA\nAF\nBF\nDA\nAC\nFC\nFA\nBF\nAD\nBB\nDC\nAF\nAA\nAD\nEE\nED\nCD\nFC\nFB\nBB\nDD\nEB\nBE\nCF\nDE\nAE\nFD\nAB\nFB\nAE\nBE\nFA\nCF\nFB\nDE\nED\nAD\nFA\nBB\nBF\nDA\nEE\n",
"output": "No\n"
},
{
"input": "3 3\nAAA\nABA\nABA\n",
"output": "No\n"
},
{
"input": "3 3\nAAA\nABA\nAAA\n",
"output": "Yes\n"
},
{
"input": "2 2\nAA\nAA\n",
"output": "Yes\n"
},
{
"input": "10 10\nEGFJGJKGEI\nAKJHBGHIHF\nJBABBCFGEJ\nCJDJHJJKBD\nKHJIKKGGEK\nHHJHKHGEKF\nEKFCAJGGDK\nAFKBBFICAA\nFEDFAGHEKA\nCAAGIFHGGI\n",
"output": "No\n"
}
] | code_contests | python | 0.8 | cfbefff03bc55f8686ad940b0127d814 |
Karafs is some kind of vegetable in shape of an 1 × h rectangle. Tavaspolis people love Karafs and they use Karafs in almost any kind of food. Tavas, himself, is crazy about Karafs.
<image>
Each Karafs has a positive integer height. Tavas has an infinite 1-based sequence of Karafses. The height of the i-th Karafs is si = A + (i - 1) × B.
For a given m, let's define an m-bite operation as decreasing the height of at most m distinct not eaten Karafses by 1. Karafs is considered as eaten when its height becomes zero.
Now SaDDas asks you n queries. In each query he gives you numbers l, t and m and you should find the largest number r such that l ≤ r and sequence sl, sl + 1, ..., sr can be eaten by performing m-bite no more than t times or print -1 if there is no such number r.
Input
The first line of input contains three integers A, B and n (1 ≤ A, B ≤ 106, 1 ≤ n ≤ 105).
Next n lines contain information about queries. i-th line contains integers l, t, m (1 ≤ l, t, m ≤ 106) for i-th query.
Output
For each query, print its answer in a single line.
Examples
Input
2 1 4
1 5 3
3 3 10
7 10 2
6 4 8
Output
4
-1
8
-1
Input
1 5 2
1 5 10
2 7 4
Output
1
2
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a,b,n=map(int,input().split())
for _ in range(n):
l,t,m=map(int,input().split())
lo=l
hi=100000000
while lo<hi:
mid=(lo+hi)//2
count=(mid-l)+1
first=a+(l-1)*b
last=a+(mid-1)*b
if last<=t and (count*(first+last))//2<=m*t:
lo=mid+1
else:
hi=mid
if mid!=lo:
print(mid)
else:
count=(mid-1-l)+1
first=a+(l-1)*b
last=a+(mid-1-1)*b
if last<=t and (count*(first+last))//2<=m*t and mid-1>=l:
print(mid-1)
else:
print(-1) | python | code_algorithm | [
{
"input": "1 5 2\n1 5 10\n2 7 4\n",
"output": "1\n2\n"
},
{
"input": "2 1 4\n1 5 3\n3 3 10\n7 10 2\n6 4 8\n",
"output": "4\n-1\n8\n-1\n"
},
{
"input": "1 1 1\n1 1000000 1000000\n",
"output": "1000000\n"
},
{
"input": "447 74474 4\n47 777474 747\n74 744744 74477\n477 477447 777\n7 477777 444444\n",
"output": "-1\n-1\n-1\n7\n"
},
{
"input": "1000000 1000000 1\n1000000 1000000 1000000\n",
"output": "-1\n"
},
{
"input": "1 1 4\n1 1000000 1000000\n1 1 1000000\n1 1000000 1\n1 1 1\n",
"output": "1000000\n1\n1413\n1\n"
},
{
"input": "1 5000 1\n1 1000000 1000000\n",
"output": "200\n"
},
{
"input": "1 1000000 1\n1 1000000 1000000\n",
"output": "1\n"
},
{
"input": "999999 1000000 1\n1 1000000 1000000\n",
"output": "1\n"
}
] | code_contests | python | 0 | 120c9b7e35abe69616928f61424f9fe6 |
Alena has successfully passed the entrance exams to the university and is now looking forward to start studying.
One two-hour lesson at the Russian university is traditionally called a pair, it lasts for two academic hours (an academic hour is equal to 45 minutes).
The University works in such a way that every day it holds exactly n lessons. Depending on the schedule of a particular group of students, on a given day, some pairs may actually contain classes, but some may be empty (such pairs are called breaks).
The official website of the university has already published the schedule for tomorrow for Alena's group. Thus, for each of the n pairs she knows if there will be a class at that time or not.
Alena's House is far from the university, so if there are breaks, she doesn't always go home. Alena has time to go home only if the break consists of at least two free pairs in a row, otherwise she waits for the next pair at the university.
Of course, Alena does not want to be sleepy during pairs, so she will sleep as long as possible, and will only come to the first pair that is presented in her schedule. Similarly, if there are no more pairs, then Alena immediately goes home.
Alena appreciates the time spent at home, so she always goes home when it is possible, and returns to the university only at the beginning of the next pair. Help Alena determine for how many pairs she will stay at the university. Note that during some pairs Alena may be at the university waiting for the upcoming pair.
Input
The first line of the input contains a positive integer n (1 ≤ n ≤ 100) — the number of lessons at the university.
The second line contains n numbers ai (0 ≤ ai ≤ 1). Number ai equals 0, if Alena doesn't have the i-th pairs, otherwise it is equal to 1. Numbers a1, a2, ..., an are separated by spaces.
Output
Print a single number — the number of pairs during which Alena stays at the university.
Examples
Input
5
0 1 0 1 1
Output
4
Input
7
1 0 1 0 0 1 0
Output
4
Input
1
0
Output
0
Note
In the first sample Alena stays at the university from the second to the fifth pair, inclusive, during the third pair she will be it the university waiting for the next pair.
In the last sample Alena doesn't have a single pair, so she spends all the time at home.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
a = list(map(int, input().split())) + [0]
home = True
ans = 0
for i in range(n):
if a[i]:
ans += 1
home = False
elif not a[i + 1] and not home:
home = True
elif not home:
ans += 1
print(ans) | python | code_algorithm | [
{
"input": "5\n0 1 0 1 1\n",
"output": "4\n"
},
{
"input": "7\n1 0 1 0 0 1 0\n",
"output": "4\n"
},
{
"input": "1\n0\n",
"output": "0\n"
},
{
"input": "95\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "95\n"
},
{
"input": "44\n0 1 1 1 1 0 1 0 0 1 0 1 0 0 1 1 0 1 1 0 0 1 0 1 0 1 1 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 1 1\n",
"output": "32\n"
},
{
"input": "12\n1 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "1\n"
},
{
"input": "10\n0 0 0 0 0 0 0 0 0 0\n",
"output": "0\n"
},
{
"input": "11\n0 1 0 1 0 0 1 1 0 1 1\n",
"output": "8\n"
},
{
"input": "33\n1 0 1 0 1 1 1 1 1 0 1 0 1 1 0 0 1 0 1 0 0 0 1 0 1 0 1 0 0 0 0 1 1\n",
"output": "24\n"
},
{
"input": "63\n1 1 0 1 1 0 0 0 1 1 0 0 1 1 1 1 0 1 1 0 1 0 1 1 1 1 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 1 1 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 1 0 1 0\n",
"output": "39\n"
},
{
"input": "77\n1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 1 1 1 0 1 1 0 1 0 0 0 0 1 1 1 0 1 0 0 1 1 0 1 0 1 1 1 1 1 1 1 0 0 1 1 0 0 1 0 1 1 1 1 1 1 1 1 0 0 1 0 1 1\n",
"output": "51\n"
},
{
"input": "95\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "0\n"
},
{
"input": "66\n0 1 1 0 1 1 1 0 0 0 1 1 0 1 1 0 0 1 1 1 1 1 0 1 1 1 0 1 1 1 0 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 0 1 1 0 1\n",
"output": "42\n"
},
{
"input": "20\n1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 0 0 1 0 0\n",
"output": "16\n"
},
{
"input": "80\n0 1 1 1 0 1 1 1 1 1 0 0 1 0 1 1 0 1 1 1 0 1 1 1 1 0 1 0 1 0 0 0 1 1 0 1 1 0 0 0 0 1 1 1 0 0 0 1 0 0 1 1 1 0 0 0 0 0 0 1 0 1 0 0 1 0 1 1 1 1 1 0 0 0 1 1 0 0 1 1\n",
"output": "52\n"
},
{
"input": "55\n0 1 1 0 1 0 1 1 1 1 0 1 1 0 0 1 1 1 0 0 0 1 1 0 0 1 0 1 0 1 0 0 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 0 1 1 0 0 0 1\n",
"output": "39\n"
},
{
"input": "55\n0 1 1 0 1 0 0 0 1 0 0 0 1 0 1 0 0 1 0 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 1 0 1 1 1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 0\n",
"output": "23\n"
},
{
"input": "11\n1 0 0 0 0 0 1 0 1 1 1\n",
"output": "6\n"
},
{
"input": "88\n0 0 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 1 0 1 1 1 0 1 1 1 0 1 1 1 1 0 0 0 0 1 0 0 0 1 0 1 1 0 1 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 1 1 0\n",
"output": "44\n"
},
{
"input": "55\n1 0 1 0 1 0 1 0 1 1 0 0 1 1 1 1 0 1 0 0 0 1 1 0 0 1 0 1 0 1 1 1 0 0 0 0 0 0 1 0 0 0 1 1 1 0 0 0 1 0 1 0 1 1 1\n",
"output": "36\n"
},
{
"input": "33\n1 0 1 0 1 0 0 0 1 0 1 1 1 0 0 0 0 1 1 0 1 0 1 1 0 1 0 1 1 1 1 1 0\n",
"output": "25\n"
},
{
"input": "77\n0 0 1 0 0 0 1 0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 1 0 1 1 0 1 0 0 0 0 1 1 0 0 0 1 1 0 0 1 1 0 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 0 1 1 0 1 0 0 0 0 1 1\n",
"output": "44\n"
},
{
"input": "88\n1 0 0 0 1 1 1 0 1 1 0 0 0 0 0 0 1 0 1 0 0 0 1 1 0 0 1 1 1 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 1 0 1 1 0 0 1 1 1 0 0 1 0 0 1 1 1 1 0 0 1 0 1 1 1 0 1 0 1 1 1 1 0 1 0 1 1 1 0 0 0\n",
"output": "53\n"
},
{
"input": "55\n1 0 1 0 0 1 0 0 1 1 0 1 0 1 0 0 1 1 0 0 0 0 1 1 1 0 0 0 1 1 1 1 0 1 0 1 0 0 0 1 0 1 1 0 0 0 1 0 1 0 0 1 1 0 0\n",
"output": "32\n"
},
{
"input": "2\n0 0\n",
"output": "0\n"
},
{
"input": "88\n0 0 1 0 0 0 1 1 0 1 0 1 1 1 0 1 1 1 0 1 1 1 1 1 0 1 1 0 1 1 1 0 1 0 0 1 0 1 1 0 0 0 0 0 1 1 0 0 1 0 1 1 1 0 1 1 0 1 1 0 0 0 1 1 1 1 1 1 1 0 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 1\n",
"output": "59\n"
},
{
"input": "33\n0 1 0 1 0 1 1 0 0 0 1 1 1 0 1 0 1 1 0 1 0 1 0 0 1 1 1 0 1 1 1 0 1\n",
"output": "27\n"
},
{
"input": "1\n1\n",
"output": "1\n"
},
{
"input": "22\n0 1 1 0 0 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 1 0\n",
"output": "7\n"
},
{
"input": "2\n0 1\n",
"output": "1\n"
},
{
"input": "99\n0 0 0 0 1 0 0 1 0 0 0 1 1 1 1 1 1 0 1 1 0 1 0 0 1 0 1 1 1 1 1 0 1 0 1 1 1 0 0 0 1 0 0 1 0 1 0 1 0 0 0 0 1 0 1 1 0 0 1 1 1 0 0 1 1 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 1 1 1 0 1 1 0 1 0 1 0 0 0 1 1 0 0 0 0\n",
"output": "56\n"
},
{
"input": "90\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "0\n"
},
{
"input": "44\n0 1 1 0 1 0 0 0 0 1 1 0 0 0 0 0 1 1 1 0 0 0 0 0 1 0 0 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 0 0\n",
"output": "19\n"
},
{
"input": "66\n1 0 1 0 0 0 1 0 1 0 1 0 1 1 0 1 0 1 1 0 0 0 1 1 1 0 1 0 0 1 0 1 0 0 0 0 1 1 0 1 1 0 1 0 0 0 1 1 0 1 0 1 1 0 0 0 1 1 0 1 1 0 1 1 0 0\n",
"output": "46\n"
},
{
"input": "2\n1 1\n",
"output": "2\n"
},
{
"input": "11\n0 0 0 0 0 0 0 0 0 0 1\n",
"output": "1\n"
},
{
"input": "99\n1 1 0 0 1 1 1 0 0 0 1 0 1 0 1 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 0 1 1 1 1 0 1 1 1 0 0 1 0 0 1 1 0 0 0 0 1 0 0 1 0 1 1 0 1 1 0 0 1 0 0 1 0 1 0 1 1 0 1 0 1 1 1 1 0 0 1 0\n",
"output": "65\n"
},
{
"input": "33\n0 1 1 0 1 1 0 1 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 1 0 0 1 1 0 1 1 0 0\n",
"output": "26\n"
},
{
"input": "66\n1 0 1 0 0 0 1 1 1 1 1 0 1 0 0 0 1 1 1 0 1 1 0 1 0 1 0 0 1 0 0 1 0 1 0 1 0 0 1 0 0 1 0 1 1 1 1 1 0 1 1 1 1 1 1 0 0 0 1 0 1 1 0 0 0 1\n",
"output": "46\n"
},
{
"input": "88\n1 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 0 0 1 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 0 1 0 0 1 0 0 1 0 1 1 0 1 0 1 0 1 0 0 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 1 1 1 1 0 1 1 0 1\n",
"output": "63\n"
},
{
"input": "22\n0 1 0 1 0 1 1 1 1 0 0 1 1 1 0 1 1 1 0 0 0 1\n",
"output": "16\n"
},
{
"input": "77\n1 0 0 0 1 0 1 1 0 0 1 0 0 0 1 1 1 1 0 1 0 0 0 0 0 0 1 1 0 0 0 1 0 1 0 1 1 1 0 1 1 1 0 0 0 1 1 0 1 1 1 0 1 1 0 0 1 0 0 1 1 1 1 0 1 0 0 0 1 0 1 1 0 0 0 0 0\n",
"output": "45\n"
},
{
"input": "100\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "100\n"
},
{
"input": "99\n0 0 1 0 0 1 1 0 0 0 1 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 1 0 0 0 1 0 1 1 0 0 1 1 1 0 1 1 0 0 0 0 0 1 0 0 1 0 1 1 0 1 0 1 0 0 1 0 1 1 1 1 1 1 0 1 0 0 1 1 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 0 0 0 0 0 0 1 1 1\n",
"output": "58\n"
},
{
"input": "100\n0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\n",
"output": "0\n"
},
{
"input": "90\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "90\n"
},
{
"input": "11\n1 0 1 0 1 1 0 1 1 1 0\n",
"output": "10\n"
},
{
"input": "41\n1 1 0 1 0 1 0 0 1 0 1 1 1 0 0 0 1 1 1 0 1 0 1 1 0 1 0 1 0 0 0 0 0 0 1 0 0 1 0 1 1\n",
"output": "28\n"
},
{
"input": "66\n0 1 1 0 0 1 0 1 0 1 0 1 1 0 1 1 0 0 1 1 0 1 0 0 0 0 0 0 0 1 0 0 0 1 1 1 1 1 1 0 0 1 1 1 0 1 0 1 1 0 1 0 0 1 1 0 1 1 1 0 0 0 0 0 1 0\n",
"output": "41\n"
},
{
"input": "9\n1 1 1 1 1 1 1 1 1\n",
"output": "9\n"
},
{
"input": "22\n1 0 1 0 0 0 1 0 0 1 1 0 1 0 1 1 0 0 0 1 0 1\n",
"output": "14\n"
},
{
"input": "99\n1 1 0 0 0 1 0 0 1 1 1 1 0 0 0 1 0 1 1 0 1 1 1 1 0 0 0 0 1 1 1 1 0 1 0 1 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 0 1 1 1 0 1 0 0 1 1 0 1 0 0 1 1 1 1 0 0 1 1 0 0 1 0 1 1 1 0 1 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1\n",
"output": "72\n"
},
{
"input": "22\n1 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 1 1 0 1 1 0\n",
"output": "11\n"
},
{
"input": "100\n0 1 1 0 1 1 0 0 1 1 0 1 1 1 1 1 0 0 1 1 1 0 0 0 0 1 1 0 0 1 0 0 1 0 0 0 0 1 1 1 1 1 1 0 0 1 1 0 0 0 0 1 0 1 1 1 0 1 1 0 1 0 0 0 0 0 1 0 1 1 0 0 1 1 0 1 1 0 0 1 1 1 0 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 1 0\n",
"output": "65\n"
},
{
"input": "11\n0 1 1 0 0 0 0 0 0 0 0\n",
"output": "2\n"
},
{
"input": "77\n0 0 1 0 0 1 0 0 1 1 1 1 0 1 0 0 1 0 0 0 0 1 0 0 0 0 1 0 1 0 1 0 0 0 1 0 0 1 1 0 1 0 1 1 0 0 0 1 0 0 1 1 1 0 1 0 1 1 0 1 0 0 0 1 0 1 1 0 1 1 1 0 1 1 0 1 0\n",
"output": "47\n"
},
{
"input": "44\n1 0 1 0 1 1 1 0 0 0 0 0 0 1 0 0 0 1 1 1 0 0 0 1 0 1 0 1 1 0 1 1 0 1 0 1 1 0 1 0 1 1 1 1\n",
"output": "32\n"
},
{
"input": "44\n1 0 1 0 0 1 0 1 0 1 0 1 0 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 1 0 0 1 0\n",
"output": "23\n"
},
{
"input": "2\n1 0\n",
"output": "1\n"
},
{
"input": "99\n1 1 1 0 1 0 1 1 0 1 1 0 0 1 0 0 1 1 1 0 1 1 0 0 0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 0 1 0 1 0 0 1 1 1 1 1 0 1 1 0 1 1 0 0 0 1 0 1 0 1 0 1 0 0 0 1 1 1 1 0 0 1 1 0 1 0 0 0 1 0 1 1 1 0 0 1 1 1 1 1 0 1 1 1 1\n",
"output": "77\n"
}
] | code_contests | python | 0 | 88c08865e1188a3451597a0ab0d807c4 |
Genos needs your help. He was asked to solve the following programming problem by Saitama:
The length of some string s is denoted |s|. The Hamming distance between two strings s and t of equal length is defined as <image>, where si is the i-th character of s and ti is the i-th character of t. For example, the Hamming distance between string "0011" and string "0110" is |0 - 0| + |0 - 1| + |1 - 1| + |1 - 0| = 0 + 1 + 0 + 1 = 2.
Given two binary strings a and b, find the sum of the Hamming distances between a and all contiguous substrings of b of length |a|.
Input
The first line of the input contains binary string a (1 ≤ |a| ≤ 200 000).
The second line of the input contains binary string b (|a| ≤ |b| ≤ 200 000).
Both strings are guaranteed to consist of characters '0' and '1' only.
Output
Print a single integer — the sum of Hamming distances between a and all contiguous substrings of b of length |a|.
Examples
Input
01
00111
Output
3
Input
0011
0110
Output
2
Note
For the first sample case, there are four contiguous substrings of b of length |a|: "00", "01", "11", and "11". The distance between "01" and "00" is |0 - 0| + |1 - 0| = 1. The distance between "01" and "01" is |0 - 0| + |1 - 1| = 0. The distance between "01" and "11" is |0 - 1| + |1 - 1| = 1. Last distance counts twice, as there are two occurrences of string "11". The sum of these edit distances is 1 + 0 + 1 + 1 = 3.
The second sample case is described in the statement.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from sys import stdin
input=stdin.readline
'''
if i+k
'''
def getcnt(a):
cnt=[[0,0] for i in range(len(a)+1)]
for i in range(len(a)):
# if i==0:
# cnt[i][a[i]]+=1
# else:
cnt[i+1][0]=cnt[i][0]
cnt[i+1][1]=cnt[i][1]
cnt[i+1][a[i]]+=1
return cnt
def f(a,b):
ans=0
a=list(map(int,list(a)))
b=list(map(int,list(b)))
lb=len(b)
la=len(a)
cnt=getcnt(a)
ans=0
for i in range(len(b)):
lo=max(0,i-(lb-la))
hi=min(i+1,la)
# print(lo,hi)
# if lo==0:
# lr=[0,0]
# else:
lr=cnt[lo]
rr=cnt[hi]
t=list(map(lambda x,y:x-y,rr,lr))
ans+=t[b[i]^1]
return ans
s=input().strip()
t=input().strip()
print(f(s,t)) | python | code_algorithm | [
{
"input": "01\n00111\n",
"output": "3\n"
},
{
"input": "0011\n0110\n",
"output": "2\n"
},
{
"input": "1001101001101110101101000\n01111000010011111111110010001101000100011110101111\n",
"output": "321\n"
},
{
"input": "1\n0\n",
"output": "1\n"
},
{
"input": "0\n1\n",
"output": "1\n"
},
{
"input": "0\n0\n",
"output": "0\n"
},
{
"input": "1\n1\n",
"output": "0\n"
},
{
"input": "1110010001000101001011111\n00011011000000100001010000010100110011010001111010\n",
"output": "316\n"
}
] | code_contests | python | 0 | 7ccca6f982f9ed722cdccd534f0d6bb0 |
You are given names of two days of the week.
Please, determine whether it is possible that during some non-leap year the first day of some month was equal to the first day of the week you are given, while the first day of the next month was equal to the second day of the week you are given. Both months should belong to one year.
In this problem, we consider the Gregorian calendar to be used. The number of months in this calendar is equal to 12. The number of days in months during any non-leap year is: 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31.
Names of the days of the week are given with lowercase English letters: "monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday".
Input
The input consists of two lines, each of them containing the name of exactly one day of the week. It's guaranteed that each string in the input is from the set "monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday".
Output
Print "YES" (without quotes) if such situation is possible during some non-leap year. Otherwise, print "NO" (without quotes).
Examples
Input
monday
tuesday
Output
NO
Input
sunday
sunday
Output
YES
Input
saturday
tuesday
Output
YES
Note
In the second sample, one can consider February 1 and March 1 of year 2015. Both these days were Sundays.
In the third sample, one can consider July 1 and August 1 of year 2017. First of these two days is Saturday, while the second one is Tuesday.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | a = str(input())
b = str(input())
k = {'monday':1,'tuesday':2,'wednesday':3,'thursday':4,'friday':5,'saturday':6,'sunday':7}
a=k[a]-1
b=k[b]-1
res = False
res = res or ((a+2)%7+1)%7==b
res = res or ((a+1)%7+1)%7==b
res = res or ((a+6)%7+1)%7==b
if res:
print("YES")
else:
print("NO")
| python | code_algorithm | [
{
"input": "monday\ntuesday\n",
"output": "NO\n"
},
{
"input": "saturday\ntuesday\n",
"output": "YES\n"
},
{
"input": "sunday\nsunday\n",
"output": "YES\n"
},
{
"input": "friday\ntuesday\n",
"output": "NO\n"
},
{
"input": "thursday\nmonday\n",
"output": "NO\n"
},
{
"input": "tuesday\nsunday\n",
"output": "NO\n"
},
{
"input": "thursday\nsaturday\n",
"output": "YES\n"
},
{
"input": "saturday\nfriday\n",
"output": "NO\n"
},
{
"input": "thursday\nsunday\n",
"output": "YES\n"
},
{
"input": "monday\nsaturday\n",
"output": "NO\n"
},
{
"input": "saturday\nsunday\n",
"output": "NO\n"
},
{
"input": "saturday\nsaturday\n",
"output": "YES\n"
},
{
"input": "sunday\nfriday\n",
"output": "NO\n"
},
{
"input": "monday\nthursday\n",
"output": "YES\n"
},
{
"input": "thursday\nthursday\n",
"output": "YES\n"
},
{
"input": "saturday\nthursday\n",
"output": "NO\n"
},
{
"input": "sunday\nmonday\n",
"output": "NO\n"
},
{
"input": "monday\nmonday\n",
"output": "YES\n"
},
{
"input": "friday\nwednesday\n",
"output": "NO\n"
},
{
"input": "saturday\nwednesday\n",
"output": "NO\n"
},
{
"input": "wednesday\nthursday\n",
"output": "NO\n"
},
{
"input": "tuesday\nthursday\n",
"output": "YES\n"
},
{
"input": "wednesday\ntuesday\n",
"output": "NO\n"
},
{
"input": "wednesday\nmonday\n",
"output": "NO\n"
},
{
"input": "saturday\nmonday\n",
"output": "YES\n"
},
{
"input": "tuesday\nwednesday\n",
"output": "NO\n"
},
{
"input": "sunday\nwednesday\n",
"output": "YES\n"
},
{
"input": "wednesday\nsunday\n",
"output": "NO\n"
},
{
"input": "sunday\nthursday\n",
"output": "NO\n"
},
{
"input": "sunday\ntuesday\n",
"output": "YES\n"
},
{
"input": "thursday\ntuesday\n",
"output": "NO\n"
},
{
"input": "monday\nfriday\n",
"output": "NO\n"
},
{
"input": "friday\nsunday\n",
"output": "YES\n"
},
{
"input": "tuesday\ntuesday\n",
"output": "YES\n"
},
{
"input": "wednesday\nfriday\n",
"output": "YES\n"
},
{
"input": "friday\nthursday\n",
"output": "NO\n"
},
{
"input": "monday\nsunday\n",
"output": "NO\n"
},
{
"input": "monday\nwednesday\n",
"output": "YES\n"
},
{
"input": "friday\nmonday\n",
"output": "YES\n"
},
{
"input": "tuesday\nmonday\n",
"output": "NO\n"
},
{
"input": "wednesday\nwednesday\n",
"output": "YES\n"
},
{
"input": "tuesday\nfriday\n",
"output": "YES\n"
},
{
"input": "thursday\nfriday\n",
"output": "NO\n"
},
{
"input": "thursday\nwednesday\n",
"output": "NO\n"
},
{
"input": "wednesday\nsaturday\n",
"output": "YES\n"
},
{
"input": "friday\nsaturday\n",
"output": "NO\n"
},
{
"input": "friday\nfriday\n",
"output": "YES\n"
},
{
"input": "sunday\nsaturday\n",
"output": "NO\n"
},
{
"input": "tuesday\nsaturday\n",
"output": "NO\n"
}
] | code_contests | python | 0.7 | 2150aa584d740238b4f56afb7ceb07fa |
There is the faculty of Computer Science in Berland. In the social net "TheContact!" for each course of this faculty there is the special group whose name equals the year of university entrance of corresponding course of students at the university.
Each of students joins the group of his course and joins all groups for which the year of student's university entrance differs by no more than x from the year of university entrance of this student, where x — some non-negative integer. A value x is not given, but it can be uniquely determined from the available data. Note that students don't join other groups.
You are given the list of groups which the student Igor joined. According to this information you need to determine the year of Igor's university entrance.
Input
The first line contains the positive odd integer n (1 ≤ n ≤ 5) — the number of groups which Igor joined.
The next line contains n distinct integers a1, a2, ..., an (2010 ≤ ai ≤ 2100) — years of student's university entrance for each group in which Igor is the member.
It is guaranteed that the input data is correct and the answer always exists. Groups are given randomly.
Output
Print the year of Igor's university entrance.
Examples
Input
3
2014 2016 2015
Output
2015
Input
1
2050
Output
2050
Note
In the first test the value x = 1. Igor entered the university in 2015. So he joined groups members of which are students who entered the university in 2014, 2015 and 2016.
In the second test the value x = 0. Igor entered only the group which corresponds to the year of his university entrance.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n = int(input())
a = list(map(int, input().split()))
a.sort()
if n % 2:
print(a[n//2]) | python | code_algorithm | [
{
"input": "1\n2050\n",
"output": "2050\n"
},
{
"input": "3\n2014 2016 2015\n",
"output": "2015\n"
},
{
"input": "5\n2099 2096 2095 2097 2098\n",
"output": "2097\n"
},
{
"input": "3\n2011 2010 2012\n",
"output": "2011\n"
},
{
"input": "5\n2097 2099 2100 2098 2096\n",
"output": "2098\n"
},
{
"input": "5\n2011 2014 2013 2010 2012\n",
"output": "2012\n"
},
{
"input": "5\n2021 2023 2024 2020 2022\n",
"output": "2022\n"
},
{
"input": "5\n2011 2014 2012 2013 2010\n",
"output": "2012\n"
},
{
"input": "5\n2043 2042 2041 2044 2040\n",
"output": "2042\n"
},
{
"input": "3\n2012 2011 2010\n",
"output": "2011\n"
},
{
"input": "3\n2012 2010 2011\n",
"output": "2011\n"
},
{
"input": "3\n2047 2048 2049\n",
"output": "2048\n"
},
{
"input": "5\n2014 2013 2011 2012 2015\n",
"output": "2013\n"
},
{
"input": "5\n2012 2011 2013 2015 2014\n",
"output": "2013\n"
},
{
"input": "5\n2099 2096 2100 2097 2098\n",
"output": "2098\n"
},
{
"input": "3\n2047 2049 2048\n",
"output": "2048\n"
},
{
"input": "3\n2010 2011 2012\n",
"output": "2011\n"
},
{
"input": "5\n2013 2011 2015 2012 2014\n",
"output": "2013\n"
},
{
"input": "5\n2095 2099 2097 2096 2098\n",
"output": "2097\n"
},
{
"input": "3\n2049 2048 2047\n",
"output": "2048\n"
},
{
"input": "3\n2048 2049 2047\n",
"output": "2048\n"
},
{
"input": "3\n2049 2047 2048\n",
"output": "2048\n"
},
{
"input": "5\n2081 2079 2078 2080 2077\n",
"output": "2079\n"
},
{
"input": "5\n2030 2031 2033 2032 2029\n",
"output": "2031\n"
},
{
"input": "5\n2012 2015 2014 2013 2011\n",
"output": "2013\n"
},
{
"input": "5\n2012 2013 2014 2015 2016\n",
"output": "2014\n"
},
{
"input": "1\n2045\n",
"output": "2045\n"
},
{
"input": "3\n2010 2012 2011\n",
"output": "2011\n"
},
{
"input": "5\n2077 2078 2080 2079 2081\n",
"output": "2079\n"
},
{
"input": "1\n2046\n",
"output": "2046\n"
},
{
"input": "1\n2011\n",
"output": "2011\n"
},
{
"input": "5\n2079 2080 2077 2081 2078\n",
"output": "2079\n"
},
{
"input": "3\n2011 2012 2010\n",
"output": "2011\n"
},
{
"input": "1\n2099\n",
"output": "2099\n"
},
{
"input": "5\n2012 2010 2014 2011 2013\n",
"output": "2012\n"
},
{
"input": "3\n2048 2047 2049\n",
"output": "2048\n"
},
{
"input": "5\n2097 2100 2098 2096 2099\n",
"output": "2098\n"
},
{
"input": "5\n2024 2020 2021 2023 2022\n",
"output": "2022\n"
},
{
"input": "5\n2056 2057 2058 2059 2060\n",
"output": "2058\n"
},
{
"input": "5\n2093 2092 2094 2096 2095\n",
"output": "2094\n"
},
{
"input": "5\n2023 2024 2022 2021 2020\n",
"output": "2022\n"
},
{
"input": "1\n2010\n",
"output": "2010\n"
},
{
"input": "5\n2034 2033 2036 2032 2035\n",
"output": "2034\n"
},
{
"input": "1\n2100\n",
"output": "2100\n"
},
{
"input": "5\n2095 2097 2096 2098 2099\n",
"output": "2097\n"
}
] | code_contests | python | 0.8 | 1cc179af8c6980635ae9bf5db9646f55 |
Oleg the bank client checks share prices every day. There are n share prices he is interested in. Today he observed that each second exactly one of these prices decreases by k rubles (note that each second exactly one price changes, but at different seconds different prices can change). Prices can become negative. Oleg found this process interesting, and he asked Igor the financial analyst, what is the minimum time needed for all n prices to become equal, or it is impossible at all? Igor is busy right now, so he asked you to help Oleg. Can you answer this question?
Input
The first line contains two integers n and k (1 ≤ n ≤ 105, 1 ≤ k ≤ 109) — the number of share prices, and the amount of rubles some price decreases each second.
The second line contains n integers a1, a2, ..., an (1 ≤ ai ≤ 109) — the initial prices.
Output
Print the only line containing the minimum number of seconds needed for prices to become equal, of «-1» if it is impossible.
Examples
Input
3 3
12 9 15
Output
3
Input
2 2
10 9
Output
-1
Input
4 1
1 1000000000 1000000000 1000000000
Output
2999999997
Note
Consider the first example.
Suppose the third price decreases in the first second and become equal 12 rubles, then the first price decreases and becomes equal 9 rubles, and in the third second the third price decreases again and becomes equal 9 rubles. In this case all prices become equal 9 rubles in 3 seconds.
There could be other possibilities, but this minimizes the time needed for all prices to become equal. Thus the answer is 3.
In the second example we can notice that parity of first and second price is different and never changes within described process. Thus prices never can become equal.
In the third example following scenario can take place: firstly, the second price drops, then the third price, and then fourth price. It happens 999999999 times, and, since in one second only one price can drop, the whole process takes 999999999 * 3 = 2999999997 seconds. We can note that this is the minimum possible time.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | n,k=map(int,input().split())
l=list(map(int,input().split()))
K=min(l)
for i in range(n):
if (l[i]-K)%k!=0:
print(-1)
exit()
Sum=sum(l)
K=K*n
Sum=Sum-K
print(Sum//k) | python | code_algorithm | [
{
"input": "2 2\n10 9\n",
"output": "-1\n"
},
{
"input": "3 3\n12 9 15\n",
"output": "3\n"
},
{
"input": "4 1\n1 1000000000 1000000000 1000000000\n",
"output": "2999999997\n"
},
{
"input": "3 3\n1 3 5\n",
"output": "-1\n"
},
{
"input": "10 2\n2 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000\n",
"output": "4499999991\n"
},
{
"input": "2 1\n2 3\n",
"output": "1\n"
},
{
"input": "3 5\n2 4 5\n",
"output": "-1\n"
},
{
"input": "4 4\n1 5 8 14\n",
"output": "-1\n"
},
{
"input": "2 6\n8 16\n",
"output": "-1\n"
},
{
"input": "3 3\n1 3 4\n",
"output": "-1\n"
},
{
"input": "4 3\n2 2 5 1\n",
"output": "-1\n"
},
{
"input": "3 3\n7 8 8\n",
"output": "-1\n"
},
{
"input": "3 5\n6 11 17\n",
"output": "-1\n"
},
{
"input": "2 3\n7 10\n",
"output": "1\n"
},
{
"input": "2 2\n1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "5 1000000000\n1000000000 1000000000 1000000000 1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "3 6\n10 14 12\n",
"output": "-1\n"
},
{
"input": "3 4\n3 5 5\n",
"output": "-1\n"
},
{
"input": "3 10\n10 13 17\n",
"output": "-1\n"
},
{
"input": "2 1\n1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "3 2\n1 2 2\n",
"output": "-1\n"
},
{
"input": "3 2\n88888884 88888886 88888888\n",
"output": "3\n"
},
{
"input": "20 6\n38 86 86 50 98 62 32 2 14 62 98 50 2 50 32 38 62 62 8 14\n",
"output": "151\n"
},
{
"input": "2 4\n3 7\n",
"output": "1\n"
},
{
"input": "3 2\n1 2 4\n",
"output": "-1\n"
},
{
"input": "20 1\n1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "2 3\n2 4\n",
"output": "-1\n"
},
{
"input": "2 2\n100000003 100000005\n",
"output": "1\n"
},
{
"input": "1 1\n1000000000\n",
"output": "0\n"
},
{
"input": "4 1\n1000000000 1000000000 1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "2 5\n8 17\n",
"output": "-1\n"
},
{
"input": "2 3\n1 6\n",
"output": "-1\n"
},
{
"input": "100 18\n489 42 300 366 473 105 220 448 70 488 201 396 168 281 67 235 324 291 313 387 407 223 39 144 224 233 72 318 229 377 62 171 448 119 354 282 147 447 260 384 172 199 67 326 311 431 337 142 281 202 404 468 38 120 90 437 33 420 249 372 367 253 255 411 309 333 103 176 162 120 203 41 352 478 216 498 224 31 261 493 277 99 375 370 394 229 71 488 246 194 233 13 66 111 366 456 277 360 116 354\n",
"output": "-1\n"
},
{
"input": "3 5\n1 3 4\n",
"output": "-1\n"
},
{
"input": "2 3\n5 8\n",
"output": "1\n"
},
{
"input": "4 2\n1 2 3 4\n",
"output": "-1\n"
},
{
"input": "2 3\n6 9\n",
"output": "1\n"
},
{
"input": "2 3\n1 8\n",
"output": "-1\n"
},
{
"input": "4 2\n2 3 3 2\n",
"output": "-1\n"
},
{
"input": "100 10\n340 70 440 330 130 120 340 210 440 110 410 120 180 40 50 230 70 110 310 360 480 70 230 120 230 310 470 60 210 60 210 480 290 250 450 440 150 40 500 230 280 250 30 50 310 50 230 360 420 260 330 80 50 160 70 470 140 180 380 190 250 30 220 410 80 310 280 50 20 430 440 180 310 190 190 330 90 190 320 390 170 460 230 30 80 500 470 370 80 500 400 120 220 150 70 120 70 320 260 260\n",
"output": "2157\n"
},
{
"input": "1 7\n1000000000\n",
"output": "0\n"
},
{
"input": "2 3\n2 5\n",
"output": "1\n"
},
{
"input": "3 3\n3 2 1\n",
"output": "-1\n"
},
{
"input": "2 2\n3 5\n",
"output": "1\n"
},
{
"input": "4 3\n1 6 6 6\n",
"output": "-1\n"
},
{
"input": "2 3\n5 7\n",
"output": "-1\n"
},
{
"input": "2 4\n5 6\n",
"output": "-1\n"
},
{
"input": "3 3\n5 3 4\n",
"output": "-1\n"
},
{
"input": "2 1\n1 2\n",
"output": "1\n"
},
{
"input": "1 11\n123\n",
"output": "0\n"
},
{
"input": "4 2\n1000000000 100000000 100000000 100000000\n",
"output": "450000000\n"
},
{
"input": "3 2\n3 4 4\n",
"output": "-1\n"
},
{
"input": "3 2\n1 4 6\n",
"output": "-1\n"
},
{
"input": "20 5\n59 54 19 88 55 100 54 3 6 13 99 38 36 71 59 6 64 85 45 54\n",
"output": "-1\n"
},
{
"input": "3 137\n1000000000 1000000000 1000000000\n",
"output": "0\n"
},
{
"input": "3 3\n4 7 10\n",
"output": "3\n"
},
{
"input": "3 4\n3 5 3\n",
"output": "-1\n"
},
{
"input": "5 3\n15 14 9 12 18\n",
"output": "-1\n"
},
{
"input": "3 3\n1 2 3\n",
"output": "-1\n"
},
{
"input": "3 3\n3 4 5\n",
"output": "-1\n"
},
{
"input": "2 2\n1 4\n",
"output": "-1\n"
},
{
"input": "3 2\n2 3 5\n",
"output": "-1\n"
},
{
"input": "3 2\n9 10 10\n",
"output": "-1\n"
},
{
"input": "4 3\n1 2 2 5\n",
"output": "-1\n"
},
{
"input": "3 3\n2 3 4\n",
"output": "-1\n"
},
{
"input": "3 3\n1000000000 1000000000 999999997\n",
"output": "2\n"
},
{
"input": "3 5\n1 2 5\n",
"output": "-1\n"
},
{
"input": "2 5\n5 9\n",
"output": "-1\n"
},
{
"input": "4 10\n1 11 100 11\n",
"output": "-1\n"
},
{
"input": "2 4\n6 8\n",
"output": "-1\n"
},
{
"input": "2 2\n9 12\n",
"output": "-1\n"
},
{
"input": "3 3\n1 5 3\n",
"output": "-1\n"
}
] | code_contests | python | 0.8 | 80b759423c59680c366433a2e628775b |
Alice is a beginner composer and now she is ready to create another masterpiece. And not even the single one but two at the same time!
Alice has a sheet with n notes written on it. She wants to take two such non-empty non-intersecting subsequences that both of them form a melody and sum of their lengths is maximal.
Subsequence is a sequence that can be derived from another sequence by deleting some elements without changing the order of the remaining elements.
Subsequence forms a melody when each two adjacent notes either differs by 1 or are congruent modulo 7.
You should write a program which will calculate maximum sum of lengths of such two non-empty non-intersecting subsequences that both of them form a melody.
Input
The first line contains one integer number n (2 ≤ n ≤ 5000).
The second line contains n integer numbers a1, a2, ..., an (1 ≤ ai ≤ 105) — notes written on a sheet.
Output
Print maximum sum of lengths of such two non-empty non-intersecting subsequences that both of them form a melody.
Examples
Input
4
1 2 4 5
Output
4
Input
6
62 22 60 61 48 49
Output
5
Note
In the first example subsequences [1, 2] and [4, 5] give length 4 in total.
In the second example subsequences [62, 48, 49] and [60, 61] give length 5 in total. If you choose subsequence [62, 61] in the first place then the second melody will have maximum length 2, that gives the result of 4, which is not maximal.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | import sys
n = int(input()) + 1
a = [0] + list(map(int, input().split()))
mod7 = [x % 7 for x in a]
dp = [[0]*n for _ in range(n)]
maxnum = [0]*(10**5+10)
ans = 0
for i in range(n):
maxmod = [0]*7
for j in range(n):
maxnum[a[j]] = 0
for j in range(i):
maxnum[a[j]] = max(maxnum[a[j]], dp[j][i])
maxmod[mod7[j]] = max(maxmod[mod7[j]], dp[j][i])
for j in range(i+1, n):
dp[i][j] = max(
maxnum[a[j]-1],
maxnum[a[j]+1],
maxmod[mod7[j]],
dp[0][i]
) + 1
maxnum[a[j]] = max(maxnum[a[j]], dp[i][j])
maxmod[mod7[j]] = max(maxmod[mod7[j]], dp[i][j])
ans = max(ans, dp[i][j])
print(ans)
| python | code_algorithm | [
{
"input": "6\n62 22 60 61 48 49\n",
"output": "5\n"
},
{
"input": "4\n1 2 4 5\n",
"output": "4\n"
},
{
"input": "10\n7776 32915 1030 71664 7542 72359 65387 75222 95899 40333\n",
"output": "6\n"
},
{
"input": "6\n7 20 21 22 23 28\n",
"output": "6\n"
},
{
"input": "2\n1 4\n",
"output": "2\n"
},
{
"input": "10\n9 6 8 5 5 2 8 9 2 2\n",
"output": "9\n"
},
{
"input": "10\n1 1 1 1 1 1 1 1 1 1\n",
"output": "10\n"
},
{
"input": "6\n3 12 4 12 5 6\n",
"output": "6\n"
},
{
"input": "2\n5 4\n",
"output": "2\n"
},
{
"input": "3\n1 36 6\n",
"output": "3\n"
},
{
"input": "4\n15 11 28 17\n",
"output": "2\n"
}
] | code_contests | python | 0 | f18ba2bbc2dc133c378a1022edb0fc1c |
In Arcady's garden there grows a peculiar apple-tree that fruits one time per year. Its peculiarity can be explained in following way: there are n inflorescences, numbered from 1 to n. Inflorescence number 1 is situated near base of tree and any other inflorescence with number i (i > 1) is situated at the top of branch, which bottom is pi-th inflorescence and pi < i.
Once tree starts fruiting, there appears exactly one apple in each inflorescence. The same moment as apples appear, they start to roll down along branches to the very base of tree. Each second all apples, except ones in first inflorescence simultaneously roll down one branch closer to tree base, e.g. apple in a-th inflorescence gets to pa-th inflorescence. Apples that end up in first inflorescence are gathered by Arcady in exactly the same moment. Second peculiarity of this tree is that once two apples are in same inflorescence they annihilate. This happens with each pair of apples, e.g. if there are 5 apples in same inflorescence in same time, only one will not be annihilated and if there are 8 apples, all apples will be annihilated. Thus, there can be no more than one apple in each inflorescence in each moment of time.
Help Arcady with counting number of apples he will be able to collect from first inflorescence during one harvest.
Input
First line of input contains single integer number n (2 ≤ n ≤ 100 000) — number of inflorescences.
Second line of input contains sequence of n - 1 integer numbers p2, p3, ..., pn (1 ≤ pi < i), where pi is number of inflorescence into which the apple from i-th inflorescence rolls down.
Output
Single line of output should contain one integer number: amount of apples that Arcady will be able to collect from first inflorescence during one harvest.
Examples
Input
3
1 1
Output
1
Input
5
1 2 2 2
Output
3
Input
18
1 1 1 4 4 3 2 2 2 10 8 9 9 9 10 10 4
Output
4
Note
In first example Arcady will be able to collect only one apple, initially situated in 1st inflorescence. In next second apples from 2nd and 3rd inflorescences will roll down and annihilate, and Arcady won't be able to collect them.
In the second example Arcady will be able to collect 3 apples. First one is one initially situated in first inflorescence. In a second apple from 2nd inflorescence will roll down to 1st (Arcady will collect it) and apples from 3rd, 4th, 5th inflorescences will roll down to 2nd. Two of them will annihilate and one not annihilated will roll down from 2-nd inflorescence to 1st one in the next second and Arcady will collect it.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | from collections import defaultdict,Counter,deque as dq
from sys import stdin
input=stdin.readline
n=int(input())
g=defaultdict(list)
w=list(map(int,input().strip().split()))
for i in range(len(w)):
g[w[i]-1].append(i+1)
g[i+1].append(w[i]-1)
# print(g)
q=dq([0])
d=[-1]*(n)
d[0]=1
cnt=defaultdict(int)
cnt[1]+=1
while q:
t=q.popleft()
for i in g[t]:
if d[i]==-1:
d[i]=d[t]+1
cnt[d[i]]+=1
q.append(i)
ans=0
for i in cnt:
if cnt[i]%2!=0:
ans+=1
print(ans)
| python | code_algorithm | [
{
"input": "18\n1 1 1 4 4 3 2 2 2 10 8 9 9 9 10 10 4\n",
"output": "4\n"
},
{
"input": "3\n1 1\n",
"output": "1\n"
},
{
"input": "5\n1 2 2 2\n",
"output": "3\n"
},
{
"input": "3\n1 2\n",
"output": "3\n"
},
{
"input": "20\n1 2 2 4 3 5 5 6 6 9 11 9 9 12 13 10 15 13 15\n",
"output": "4\n"
},
{
"input": "30\n1 1 1 1 3 3 2 3 7 4 1 2 4 6 2 8 1 2 13 7 5 15 3 3 8 4 4 18 3\n",
"output": "2\n"
},
{
"input": "10\n1 2 3 4 5 5 5 7 9\n",
"output": "8\n"
},
{
"input": "40\n1 1 1 2 1 2 1 2 4 8 1 7 1 6 2 8 2 12 4 11 5 5 15 3 12 11 22 11 13 13 24 6 10 15 3 6 7 1 2\n",
"output": "2\n"
},
{
"input": "50\n1 2 2 4 5 5 7 6 9 10 11 12 13 7 14 15 14 17 10 14 9 21 23 23 19 26 19 25 11 24 22 27 26 34 35 30 37 31 38 32 40 32 42 44 37 21 40 40 48\n",
"output": "10\n"
},
{
"input": "20\n1 2 1 2 2 1 2 4 1 6 2 2 4 3 2 6 2 5 9\n",
"output": "2\n"
},
{
"input": "40\n1 2 2 2 2 4 2 2 6 9 3 9 9 9 3 5 7 7 2 17 4 4 8 8 25 18 12 27 8 19 26 15 33 26 33 9 24 4 27\n",
"output": "4\n"
},
{
"input": "50\n1 1 1 1 3 4 1 2 3 5 1 2 1 5 1 10 4 11 1 8 8 4 4 12 5 3 4 1 1 2 5 13 13 2 2 10 12 3 19 14 1 1 15 3 23 21 12 3 14\n",
"output": "4\n"
},
{
"input": "40\n1 2 2 3 3 6 5 5 9 7 8 11 13 7 10 10 16 14 18 20 11 19 23 18 20 21 25 16 29 25 27 31 26 34 33 23 36 33 32\n",
"output": "6\n"
},
{
"input": "20\n1 2 3 4 5 6 7 8 9 6 11 12 12 7 13 15 16 11 13\n",
"output": "8\n"
},
{
"input": "99\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98\n",
"output": "99\n"
},
{
"input": "50\n1 2 2 2 5 6 7 7 9 10 7 4 5 4 15 15 16 17 10 19 18 16 15 24 20 8 27 16 19 24 23 32 17 23 29 18 35 35 38 35 39 41 42 38 19 46 38 28 29\n",
"output": "6\n"
},
{
"input": "10\n1 1 1 1 2 4 1 1 3\n",
"output": "2\n"
},
{
"input": "30\n1 1 1 1 2 1 4 4 2 3 2 1 1 1 1 3 1 1 3 2 3 5 1 2 9 16 2 4 3\n",
"output": "2\n"
},
{
"input": "30\n1 2 3 3 5 6 3 8 9 10 10 10 11 7 8 8 15 16 13 13 19 12 15 18 18 24 27 25 10\n",
"output": "6\n"
},
{
"input": "100\n1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99\n",
"output": "100\n"
},
{
"input": "50\n1 1 1 1 1 2 3 3 2 1 1 2 3 1 3 1 5 6 4 1 1 2 1 2 1 10 17 2 2 4 12 9 6 6 5 13 1 3 2 8 25 3 22 1 10 13 6 3 2\n",
"output": "4\n"
},
{
"input": "20\n1 1 1 4 2 4 3 1 2 8 3 2 11 13 15 1 12 13 12\n",
"output": "4\n"
},
{
"input": "40\n1 2 3 4 4 6 6 4 9 9 10 12 10 12 12 16 8 13 18 14 17 20 21 23 25 22 25 26 29 26 27 27 33 31 33 34 36 29 34\n",
"output": "10\n"
},
{
"input": "99\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "1\n"
},
{
"input": "40\n1 1 1 2 2 1 1 4 6 4 7 7 7 4 4 8 10 7 5 1 5 13 7 8 2 11 18 2 1 20 7 3 12 16 2 22 4 22 14\n",
"output": "4\n"
},
{
"input": "10\n1 1 1 3 3 5 6 8 3\n",
"output": "4\n"
},
{
"input": "50\n1 2 3 3 4 3 6 7 8 10 11 10 12 11 11 14 13 8 17 20 21 19 15 18 21 18 17 23 25 28 25 27 29 32 32 34 37 29 30 39 41 35 24 41 37 36 41 35 43\n",
"output": "10\n"
},
{
"input": "10\n1 1 1 2 1 3 4 2 1\n",
"output": "2\n"
},
{
"input": "30\n1 2 1 1 1 2 1 4 2 3 9 2 3 2 1 1 4 3 12 4 8 8 3 7 9 1 9 19 1\n",
"output": "2\n"
},
{
"input": "40\n1 2 3 4 5 6 6 8 7 10 11 3 12 11 15 12 17 15 10 20 16 20 12 20 15 21 20 26 29 23 29 30 23 24 35 33 25 32 36\n",
"output": "8\n"
},
{
"input": "2\n1\n",
"output": "2\n"
},
{
"input": "50\n1 1 3 3 4 5 5 2 4 3 9 9 1 5 5 7 5 5 16 1 18 3 6 5 6 13 26 12 23 20 17 21 9 17 19 34 12 24 11 9 32 10 40 42 7 40 11 25 3\n",
"output": "6\n"
},
{
"input": "30\n1 2 2 1 5 5 5 1 7 4 10 2 4 11 2 3 10 10 7 13 12 4 10 3 22 25 8 1 1\n",
"output": "6\n"
},
{
"input": "10\n1 2 2 4 5 5 6 4 7\n",
"output": "2\n"
},
{
"input": "10\n1 2 1 2 5 5 6 6 6\n",
"output": "2\n"
},
{
"input": "10\n1 1 1 1 2 1 3 4 3\n",
"output": "2\n"
},
{
"input": "50\n1 2 3 4 5 5 5 7 1 2 11 5 7 11 11 11 15 3 17 10 6 18 14 14 24 11 10 7 17 18 8 7 19 18 31 27 21 30 34 32 27 39 38 22 32 23 31 48 25\n",
"output": "2\n"
},
{
"input": "100\n1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1\n",
"output": "2\n"
},
{
"input": "30\n1 2 3 4 5 6 5 3 6 7 8 11 12 13 15 15 13 13 19 10 14 10 15 23 21 9 27 22 28\n",
"output": "4\n"
},
{
"input": "50\n1 1 1 2 2 1 3 5 3 1 9 4 4 2 12 15 3 13 8 8 4 13 20 17 19 2 4 3 9 5 17 9 17 1 5 7 6 5 20 11 31 33 32 20 6 25 1 2 6\n",
"output": "4\n"
},
{
"input": "30\n1 1 3 3 5 6 7 5 7 6 5 4 8 6 10 12 14 9 15 20 6 21 14 24 17 23 23 18 8\n",
"output": "2\n"
},
{
"input": "20\n1 1 1 1 1 4 1 2 4 1 2 1 7 1 2 2 9 7 1\n",
"output": "2\n"
},
{
"input": "40\n1 1 1 2 3 1 2 1 3 7 1 3 4 3 2 3 4 1 2 2 4 1 7 4 1 3 2 1 4 5 3 10 14 11 10 13 8 7 4\n",
"output": "2\n"
},
{
"input": "40\n1 2 2 3 1 2 5 6 4 8 11 12 9 5 12 7 4 16 16 15 6 22 17 24 10 8 22 4 27 9 19 23 16 18 28 22 5 35 19\n",
"output": "4\n"
},
{
"input": "10\n1 2 3 4 3 6 6 6 7\n",
"output": "4\n"
},
{
"input": "10\n1 1 1 2 3 2 1 2 3\n",
"output": "2\n"
},
{
"input": "40\n1 1 1 1 1 1 1 1 1 3 4 3 3 1 3 6 7 4 5 2 4 3 9 1 4 2 5 3 5 9 5 9 10 12 3 7 2 11 1\n",
"output": "2\n"
},
{
"input": "50\n1 2 1 1 1 3 1 3 1 5 3 2 7 3 6 6 3 1 4 2 3 10 8 9 1 4 5 2 8 6 12 9 7 5 7 19 3 15 10 4 12 4 19 5 16 5 3 13 5\n",
"output": "2\n"
},
{
"input": "30\n1 1 1 2 1 2 1 1 2 1 1 1 2 2 4 3 6 2 3 5 3 4 11 5 3 3 4 7 6\n",
"output": "4\n"
},
{
"input": "30\n1 2 2 4 5 6 5 7 9 6 4 12 7 14 12 12 15 17 13 12 8 20 21 15 17 24 21 19 16\n",
"output": "4\n"
}
] | code_contests | python | 0.1 | 4c80cfadc39cfe987ac73cab3bdf8822 |
Two players play a game.
Initially there are n integers a_1, a_2, …, a_n written on the board. Each turn a player selects one number and erases it from the board. This continues until there is only one number left on the board, i. e. n - 1 turns are made. The first player makes the first move, then players alternate turns.
The first player wants to minimize the last number that would be left on the board, while the second player wants to maximize it.
You want to know what number will be left on the board after n - 1 turns if both players make optimal moves.
Input
The first line contains one integer n (1 ≤ n ≤ 1000) — the number of numbers on the board.
The second line contains n integers a_1, a_2, …, a_n (1 ≤ a_i ≤ 10^6).
Output
Print one number that will be left on the board.
Examples
Input
3
2 1 3
Output
2
Input
3
2 2 2
Output
2
Note
In the first sample, the first player erases 3 and the second erases 1. 2 is left on the board.
In the second sample, 2 is left on the board regardless of the actions of the players.
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
```
Write Python code to solve the problem. Present the code in the code block:
```python
Your code
``` | x = int(input())
l = [int(n) for n in input().split()]
l.sort()
i = 0
while len(l) > 1:
if i % 2 == 0:
l = l[0:len(l) - 1]
else:
l = l[1:len(l)]
i = i + 1
print(l[0])
| python | code_algorithm | [
{
"input": "3\n2 2 2\n",
"output": "2\n"
},
{
"input": "3\n2 1 3\n",
"output": "2\n"
},
{
"input": "10\n38 82 23 37 96 4 81 60 67 86\n",
"output": "60\n"
},
{
"input": "9\n44 53 51 80 5 27 74 79 94\n",
"output": "53\n"
},
{
"input": "3\n9 92 12\n",
"output": "12\n"
},
{
"input": "3\n1 2 2\n",
"output": "2\n"
},
{
"input": "2\n322 322\n",
"output": "322\n"
},
{
"input": "10\n58 26 77 15 53 81 68 48 22 65\n",
"output": "53\n"
},
{
"input": "1\n124\n",
"output": "124\n"
},
{
"input": "3\n1 1 1000\n",
"output": "1\n"
},
{
"input": "2\n2 1\n",
"output": "1\n"
}
] | code_contests | python | 0.8 | c4d124f595a44772df2544f04300dda0 |
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