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code_segments/segment_9.txt

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+A contest contains $n$ problems and the difficulty of the $i$-th problem is expected to be at most $b_i$. There are already $n$ problem proposals and the difficulty of the $i$-th problem is $a_i$. Initially, both $a_1, a_2, \ldots, a_n$ and $b_1, b_2, \ldots, b_n$ are sorted in non-decreasing order.
+
+Some of the problems may be more difficult than expected, so the writers must propose more problems. When a new problem with difficulty $w$ is proposed, the most difficult problem will be deleted from the contest, and the problems will be sorted in a way that the difficulties are non-decreasing.
+
+In other words, in each operation, you choose an integer $w$, insert it into the array $a$, sort array $a$ in non-decreasing order, and remove the last element from it.
+
+Find the minimum number of new problems to make $a_i\le b_i$ for all $i$.
+
+Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1\le t\le 100$). The description of the test cases follows.
+
+The first line of each test case contains only one positive integer $n$ ($1 \leq n \leq 100$), representing the number of problems.
+
+The second line of each test case contains an array $a$ of length $n$ ($1\le a_1\le a_2\le\cdots\le a_n\le 10^9$).
+
+The third line of each test case contains an array $b$ of length $n$ ($1\le b_1\le b_2\le\cdots\le b_n\le 10^9$).
+
+For each test case, print an integer as your answer in a new line.
+
+In the first test case:
+
+  * Propose a problem with difficulty $w=800$ and $a$ becomes $[800,1000,1400,2000,2000,2200]$.    * Propose a problem with difficulty $w=1800$ and $a$ becomes $[800,1000,1400,1800,2000,2000]$. 
+
+It can be proved that it's impossible to reach the goal by proposing fewer new problems.
+
+In the second test case:
+
+  * Propose a problem with difficulty $w=1$ and $a$ becomes $[1,4,5,6,7,8]$.    * Propose a problem with difficulty $w=2$ and $a$ becomes $[1,2,4,5,6,7]$.    * Propose a problem with difficulty $w=3$ and $a$ becomes $[1,2,3,4,5,6]$. 
+
+It can be proved that it's impossible to re