Design Parking System
<p>Design a parking system for a parking lot. The parking lot has three kinds of parking spaces: big, medium, and small, with a fixed number of slots for each size.</p>

<p>Implement the <code>ParkingSystem</code> class:</p>

<ul>
	<li><code>ParkingSystem(int big, int medium, int small)</code> Initializes object of the <code>ParkingSystem</code> class. The number of slots for each parking space are given as part of the constructor.</li>
	<li><code>bool addCar(int carType)</code> Checks whether there is a parking space of <code>carType</code> for the car that wants to get into the parking lot. <code>carType</code> can be of three kinds: big, medium, or small, which are represented by <code>1</code>, <code>2</code>, and <code>3</code> respectively. <strong>A car can only park in a parking space of its </strong><code>carType</code>. If there is no space available, return <code>false</code>, else park the car in that size space and return <code>true</code>.</li>
</ul>

<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>

<pre>
<strong>Input</strong>
[&quot;ParkingSystem&quot;, &quot;addCar&quot;, &quot;addCar&quot;, &quot;addCar&quot;, &quot;addCar&quot;]
[[1, 1, 0], [1], [2], [3], [1]]
<strong>Output</strong>
[null, true, true, false, false]

<strong>Explanation</strong>
ParkingSystem parkingSystem = new ParkingSystem(1, 1, 0);
parkingSystem.addCar(1); // return true because there is 1 available slot for a big car
parkingSystem.addCar(2); // return true because there is 1 available slot for a medium car
parkingSystem.addCar(3); // return false because there is no available slot for a small car
parkingSystem.addCar(1); // return false because there is no available slot for a big car. It is already occupied.
</pre>

<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>

<ul>
	<li><code>0 &lt;= big, medium, small &lt;= 1000</code></li>
	<li><code>carType</code> is <code>1</code>, <code>2</code>, or <code>3</code></li>
	<li>At most <code>1000</code> calls will be made to <code>addCar</code></li>
</ul>

[]
[]
[{"value": "cpp", "text": "C++", "defaultCode": "class ParkingSystem {\npublic:\n    ParkingSystem(int big, int medium, int small) {\n        \n    }\n    \n    bool addCar(int carType) {\n        \n    }\n};\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * ParkingSystem* obj = new ParkingSystem(big, medium, small);\n * bool param_1 = obj->addCar(carType);\n */"}, {"value": "java", "text": "Java", "defaultCode": "class ParkingSystem {\n\n    public ParkingSystem(int big, int medium, int small) {\n        \n    }\n    \n    public boolean addCar(int carType) {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * ParkingSystem obj = new ParkingSystem(big, medium, small);\n * boolean param_1 = obj.addCar(carType);\n */"}, {"value": "python", "text": "Python", "defaultCode": "class ParkingSystem(object):\n\n    def __init__(self, big, medium, small):\n        \"\"\"\n        :type big: int\n        :type medium: int\n        :type small: int\n        \"\"\"\n        \n\n    def addCar(self, carType):\n        \"\"\"\n        :type carType: int\n        :rtype: bool\n        \"\"\"\n        \n\n\n# Your ParkingSystem object will be instantiated and called as such:\n# obj = ParkingSystem(big, medium, small)\n# param_1 = obj.addCar(carType)"}, {"value": "python3", "text": "Python3", "defaultCode": "class ParkingSystem:\n\n    def __init__(self, big: int, medium: int, small: int):\n        \n\n    def addCar(self, carType: int) -> bool:\n        \n\n\n# Your ParkingSystem object will be instantiated and called as such:\n# obj = ParkingSystem(big, medium, small)\n# param_1 = obj.addCar(carType)"}, {"value": "c", "text": "C", "defaultCode": "\n\n\ntypedef struct {\n    \n} ParkingSystem;\n\n\nParkingSystem* parkingSystemCreate(int big, int medium, int small) {\n    \n}\n\nbool parkingSystemAddCar(ParkingSystem* obj, int carType) {\n    \n}\n\nvoid parkingSystemFree(ParkingSystem* obj) {\n    \n}\n\n/**\n * Your ParkingSystem struct will be instantiated and called as such:\n * ParkingSystem* obj = parkingSystemCreate(big, medium, small);\n * bool param_1 = parkingSystemAddCar(obj, carType);\n \n * parkingSystemFree(obj);\n*/"}, {"value": "csharp", "text": "C#", "defaultCode": "public class ParkingSystem {\n\n    public ParkingSystem(int big, int medium, int small) {\n        \n    }\n    \n    public bool AddCar(int carType) {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * ParkingSystem obj = new ParkingSystem(big, medium, small);\n * bool param_1 = obj.AddCar(carType);\n */"}, {"value": "javascript", "text": "JavaScript", "defaultCode": "/**\n * @param {number} big\n * @param {number} medium\n * @param {number} small\n */\nvar ParkingSystem = function(big, medium, small) {\n    \n};\n\n/** \n * @param {number} carType\n * @return {boolean}\n */\nParkingSystem.prototype.addCar = function(carType) {\n    \n};\n\n/** \n * Your ParkingSystem object will be instantiated and called as such:\n * var obj = new ParkingSystem(big, medium, small)\n * var param_1 = obj.addCar(carType)\n */"}, {"value": "typescript", "text": "TypeScript", "defaultCode": "class ParkingSystem {\n    constructor(big: number, medium: number, small: number) {\n        \n    }\n\n    addCar(carType: number): boolean {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * var obj = new ParkingSystem(big, medium, small)\n * var param_1 = obj.addCar(carType)\n */"}, {"value": "php", "text": "PHP", "defaultCode": "class ParkingSystem {\n    /**\n     * @param Integer $big\n     * @param Integer $medium\n     * @param Integer $small\n     */\n    function __construct($big, $medium, $small) {\n        \n    }\n  \n    /**\n     * @param Integer $carType\n     * @return Boolean\n     */\n    function addCar($carType) {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * $obj = ParkingSystem($big, $medium, $small);\n * $ret_1 = $obj->addCar($carType);\n */"}, {"value": "swift", "text": "Swift", "defaultCode": "\nclass ParkingSystem {\n\n    init(_ big: Int, _ medium: Int, _ small: Int) {\n        \n    }\n    \n    func addCar(_ carType: Int) -> Bool {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * let obj = ParkingSystem(big, medium, small)\n * let ret_1: Bool = obj.addCar(carType)\n */"}, {"value": "kotlin", "text": "Kotlin", "defaultCode": "class ParkingSystem(big: Int, medium: Int, small: Int) {\n\n    fun addCar(carType: Int): Boolean {\n        \n    }\n\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * var obj = ParkingSystem(big, medium, small)\n * var param_1 = obj.addCar(carType)\n */"}, {"value": "dart", "text": "Dart", "defaultCode": "class ParkingSystem {\n\n  ParkingSystem(int big, int medium, int small) {\n    \n  }\n  \n  bool addCar(int carType) {\n    \n  }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * ParkingSystem obj = ParkingSystem(big, medium, small);\n * bool param1 = obj.addCar(carType);\n */"}, {"value": "golang", "text": "Go", "defaultCode": "type ParkingSystem struct {\n    \n}\n\n\nfunc Constructor(big int, medium int, small int) ParkingSystem {\n    \n}\n\n\nfunc (this *ParkingSystem) AddCar(carType int) bool {\n    \n}\n\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * obj := Constructor(big, medium, small);\n * param_1 := obj.AddCar(carType);\n */"}, {"value": "ruby", "text": "Ruby", "defaultCode": "class ParkingSystem\n\n=begin\n    :type big: Integer\n    :type medium: Integer\n    :type small: Integer\n=end\n    def initialize(big, medium, small)\n        \n    end\n\n\n=begin\n    :type car_type: Integer\n    :rtype: Boolean\n=end\n    def add_car(car_type)\n        \n    end\n\n\nend\n\n# Your ParkingSystem object will be instantiated and called as such:\n# obj = ParkingSystem.new(big, medium, small)\n# param_1 = obj.add_car(car_type)"}, {"value": "scala", "text": "Scala", "defaultCode": "class ParkingSystem(_big: Int, _medium: Int, _small: Int) {\n\n    def addCar(carType: Int): Boolean = {\n        \n    }\n\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * val obj = new ParkingSystem(big, medium, small)\n * val param_1 = obj.addCar(carType)\n */"}, {"value": "rust", "text": "Rust", "defaultCode": "struct ParkingSystem {\n\n}\n\n\n/** \n * `&self` means the method takes an immutable reference.\n * If you need a mutable reference, change it to `&mut self` instead.\n */\nimpl ParkingSystem {\n\n    fn new(big: i32, medium: i32, small: i32) -> Self {\n        \n    }\n    \n    fn add_car(&self, car_type: i32) -> bool {\n        \n    }\n}\n\n/**\n * Your ParkingSystem object will be instantiated and called as such:\n * let obj = ParkingSystem::new(big, medium, small);\n * let ret_1: bool = obj.add_car(carType);\n */"}, {"value": "racket", "text": "Racket", "defaultCode": "(define parking-system%\n  (class object%\n    (super-new)\n    \n    ; big : exact-integer?\n    ; medium : exact-integer?\n    ; small : exact-integer?\n    (init-field\n      big\n      medium\n      small)\n    \n    ; add-car : exact-integer? -> boolean?\n    (define/public (add-car car-type)\n      )))\n\n;; Your parking-system% object will be instantiated and called as such:\n;; (define obj (new parking-system% [big big] [medium medium] [small small]))\n;; (define param_1 (send obj add-car car-type))"}, {"value": "erlang", "text": "Erlang", "defaultCode": "-spec parking_system_init_(Big :: integer(), Medium :: integer(), Small :: integer()) -> any().\nparking_system_init_(Big, Medium, Small) ->\n  .\n\n-spec parking_system_add_car(CarType :: integer()) -> boolean().\nparking_system_add_car(CarType) ->\n  .\n\n\n%% Your functions will be called as such:\n%% parking_system_init_(Big, Medium, Small),\n%% Param_1 = parking_system_add_car(CarType),\n\n%% parking_system_init_ will be called before every test case, in which you can do some necessary initializations."}, {"value": "elixir", "text": "Elixir", "defaultCode": "defmodule ParkingSystem do\n  @spec init_(big :: integer, medium :: integer, small :: integer) :: any\n  def init_(big, medium, small) do\n    \n  end\n\n  @spec add_car(car_type :: integer) :: boolean\n  def add_car(car_type) do\n    \n  end\nend\n\n# Your functions will be called as such:\n# ParkingSystem.init_(big, medium, small)\n# param_1 = ParkingSystem.add_car(car_type)\n\n# ParkingSystem.init_ will be called before every test case, in which you can do some necessary initializations."}]
{
  "classname": "ParkingSystem",
  "constructor": {
    "params": [
      {
        "name": "big",
        "type": "integer"
      },
      {
        "name": "medium",
        "type": "integer"
      },
      {
        "name": "small",
        "type": "integer"
      }
    ]
  },
  "methods": [
    {
      "params": [
        {
          "type": "integer",
          "name": "carType"
        }
      ],
      "name": "addCar",
      "return": {
        "type": "boolean"
      }
    }
  ],
  "return": {
    "type": "boolean"
  },
  "systemdesign": true
}
{"cpp": ["C++", "<p>Compiled with <code> clang 19 </code> using the latest C++ 23 standard, and <code>libstdc++</code> provided by GCC 14.</p>\r\n\r\n<p>Your code is compiled with level two optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>"], "java": ["Java", "<p><code>OpenJDK 21</code>. Using compile arguments: <code>--enable-preview --release 21</code></p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n<p>Includes <code>Pair</code> class from https://docs.oracle.com/javase/8/javafx/api/javafx/util/Pair.html.</p>"], "python": ["Python", "<p><code>Python 2.7.18</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/2/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/2/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/2/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>\r\n\r\n<p>Note that Python 2.7 <a href=\"https://www.python.org/dev/peps/pep-0373/\" target=\"_blank\">is not maintained anymore</a>. For the latest Python, please choose Python3 instead.</p>"], "c": ["C", "<p>Compiled with <code>gcc 14</code> using the gnu11 standard.</p>\r\n\r\n<p>Your code is compiled with level one optimization (<code>-O2</code>). <a href=\"https://github.com/google/sanitizers/wiki/AddressSanitizer\" target=\"_blank\">AddressSanitizer</a> is also enabled to help detect out-of-bounds and use-after-free bugs.</p>\r\n\r\n<p>Most standard library headers are already included automatically for your convenience.</p>\r\n\r\n<p>For hash table operations, you may use <a href=\"https://troydhanson.github.io/uthash/\" target=\"_blank\">uthash</a>. \"uthash.h\" is included by default. Below are some examples:</p>\r\n\r\n<p><b>1. Adding an item to a hash.</b>\r\n<pre>\r\nstruct hash_entry {\r\n    int id;            /* we'll use this field as the key */\r\n    char name[10];\r\n    UT_hash_handle hh; /* makes this structure hashable */\r\n};\r\n\r\nstruct hash_entry *users = NULL;\r\n\r\nvoid add_user(struct hash_entry *s) {\r\n    HASH_ADD_INT(users, id, s);\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>2. Looking up an item in a hash:</b>\r\n<pre>\r\nstruct hash_entry *find_user(int user_id) {\r\n    struct hash_entry *s;\r\n    HASH_FIND_INT(users, &user_id, s);\r\n    return s;\r\n}\r\n</pre>\r\n</p>\r\n\r\n<p><b>3. Deleting an item in a hash:</b>\r\n<pre>\r\nvoid delete_user(struct hash_entry *user) {\r\n    HASH_DEL(users, user);  \r\n}\r\n</pre>\r\n</p>"], "csharp": ["C#", "<p><a href=\"https://learn.microsoft.com/en-us/dotnet/csharp/whats-new/csharp-13\" target=\"_blank\">C# 13</a> with .NET 9 runtime</p>"], "javascript": ["JavaScript", "<p><code>Node.js 22.14.0</code>.</p>\r\n\r\n<p>Your code is run with <code>--harmony</code> flag, enabling <a href=\"http://node.green/\" target=\"_blank\">new ES6 features</a>.</p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "ruby": ["Ruby", "<p><code>Ruby 3.2</code></p>\r\n\r\n<p>Some common data structure implementations are provided in the Algorithms module: https://www.rubydoc.info/github/kanwei/algorithms/Algorithms</p>"], "swift": ["Swift", "<p><code>Swift 6.0</code>.</p>\r\n\r\n<p>You may use the following packages:<br/>\r\n<a href=\"https://github.com/apple/swift-algorithms/tree/1.2.0\" target=\"_blank\">swift-algorithms 1.2.0</a><br/>\r\n<a href=\"https://github.com/apple/swift-collections/tree/1.1.4\" target=\"_blank\">swift-collections 1.1.4</a><br/>\r\n<a href=\"https://github.com/apple/swift-numerics/tree/1.0.2\" target=\"_blank\">swift-numerics 1.0.2</a></p>"], "golang": ["Go", "<p><code>Go 1.23</code></p>\r\n<p>Support <a href=\"https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods@v1.18.1</a> and <a href=\"https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha\" target=\"_blank\">https://pkg.go.dev/github.com/emirpasic/gods/v2@v2.0.0-alpha</a> library.</p>"], "python3": ["Python3", "<p><code>Python 3.11</code>.</p>\r\n\r\n<p>Most libraries are already imported automatically for your convenience, such as <a href=\"https://docs.python.org/3/library/array.html\" target=\"_blank\">array</a>, <a href=\"https://docs.python.org/3/library/bisect.html\" target=\"_blank\">bisect</a>, <a href=\"https://docs.python.org/3/library/collections.html\" target=\"_blank\">collections</a>. If you need more libraries, you can import it yourself.</p>\r\n\r\n<p>For Map/TreeMap data structure, you may use <a href=\"http://www.grantjenks.com/docs/sortedcontainers/\" target=\"_blank\">sortedcontainers</a> library.</p>"], "scala": ["Scala", "<p><code>Scala 3.3.1</code>.</p>"], "kotlin": ["Kotlin", "<p><code>Kotlin 2.1.10</code>.</p>"], "rust": ["Rust", "<p><code>Rust 1.85.0</code>. Your code will be compiled with <code>opt-level</code> 2.</p>\r\n\r\n<p>Supports <a href=\"https://crates.io/crates/rand\" target=\"_blank\">rand v0.8</a> and <a href=\"https://crates.io/crates/regex\" target=\"_blank\">regex\u00a0v1</a> and <a href=\"https://crates.io/crates/itertools\" target=\"_blank\">itertools\u00a0v0.14</a> from crates.io</p>"], "php": ["PHP", "<p><code>PHP 8.2</code>.</p>\r\n<p>With bcmath module</p>"], "typescript": ["Typescript", "<p><code>TypeScript 5.7.3, Node.js 22.14.0</code>.</p>\r\n\r\n<p>Compile Options: <code>--alwaysStrict --strictBindCallApply --strictFunctionTypes --target ES2024</code></p>\r\n\r\n<p><a href=\"https://lodash.com\" target=\"_blank\">lodash.js</a> library is included by default.</p>\r\n\r\n<p>For Priority Queue / Queue data structures, you may use 6.3.2 version of <a href=\"https://github.com/datastructures-js/priority-queue/tree/v6.3.2\" target=\"_blank\">datastructures-js/priority-queue</a> and 4.2.3 version of <a href=\"https://github.com/datastructures-js/queue/tree/v4.2.3\" target=\"_blank\">datastructures-js/queue</a> and 1.0.4 version of <a href=\"https://github.com/datastructures-js/deque/tree/v1.0.4\" target=\"_blank\">datastructures-js/deque</a>.</p>"], "racket": ["Racket", "<p><a href=\"https://docs.racket-lang.org/guide/performance.html#%28tech._c%29\" target=\"_blank\">Racket CS</a> v8.15</p>\r\n\r\n<p>Using <code>#lang racket</code></p>\r\n\r\n<p>Required <code>data/gvector data/queue data/order data/heap</code> automatically for your convenience</p>"], "erlang": ["Erlang", "Erlang/OTP 26"], "elixir": ["Elixir", "Elixir 1.17 with Erlang/OTP 26"], "dart": ["Dart", "<p>Dart 3.2. You may use package <a href=\"https://pub.dev/packages/collection/versions/1.18.0\" target=\"_blank\">collection</a></p>\r\n\r\n<p>Your code will be run directly without compiling</p>"]}
['Design', 'Simulation', 'Counting']