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        "question": {
            "questionId": "1708",
            "questionFrontendId": "1603",
            "categoryTitle": "Algorithms",
            "boundTopicId": 433885,
            "title": "Design Parking System",
            "titleSlug": "design-parking-system",
            "content": "<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>\n\n<p>Implement the <code>ParkingSystem</code> class:</p>\n\n<ul>\n\t<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>\n\t<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>\n</ul>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input</strong>\n[&quot;ParkingSystem&quot;, &quot;addCar&quot;, &quot;addCar&quot;, &quot;addCar&quot;, &quot;addCar&quot;]\n[[1, 1, 0], [1], [2], [3], [1]]\n<strong>Output</strong>\n[null, true, true, false, false]\n\n<strong>Explanation</strong>\nParkingSystem parkingSystem = new ParkingSystem(1, 1, 0);\nparkingSystem.addCar(1); // return true because there is 1 available slot for a big car\nparkingSystem.addCar(2); // return true because there is 1 available slot for a medium car\nparkingSystem.addCar(3); // return false because there is no available slot for a small car\nparkingSystem.addCar(1); // return false because there is no available slot for a big car. It is already occupied.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>0 &lt;= big, medium, small &lt;= 1000</code></li>\n\t<li><code>carType</code> is <code>1</code>, <code>2</code>, or <code>3</code></li>\n\t<li>At most <code>1000</code> calls will be made to <code>addCar</code></li>\n</ul>\n",
            "translatedTitle": "设计停车系统",
            "translatedContent": "<p>请你给一个停车场设计一个停车系统。停车场总共有三种不同大小的车位：大，中和小，每种尺寸分别有固定数目的车位。</p>\n\n<p>请你实现 <code>ParkingSystem</code> 类：</p>\n\n<ul>\n\t<li><code>ParkingSystem(int big, int medium, int small)</code> 初始化 <code>ParkingSystem</code> 类，三个参数分别对应每种停车位的数目。</li>\n\t<li><code>bool addCar(int carType)</code> 检查是否有 <code>carType</code> 对应的停车位。 <code>carType</code> 有三种类型：大，中，小，分别用数字 <code>1</code>， <code>2</code> 和 <code>3</code> 表示。<strong>一辆车只能停在</strong> <strong> </strong><code>carType</code> 对应尺寸的停车位中。如果没有空车位，请返回 <code>false</code> ，否则将该车停入车位并返回 <code>true</code> 。</li>\n</ul>\n\n<p> </p>\n\n<p><strong>示例 1：</strong></p>\n\n<pre>\n<strong>输入：</strong>\n[\"ParkingSystem\", \"addCar\", \"addCar\", \"addCar\", \"addCar\"]\n[[1, 1, 0], [1], [2], [3], [1]]\n<strong>输出：</strong>\n[null, true, true, false, false]\n\n<strong>解释：</strong>\nParkingSystem parkingSystem = new ParkingSystem(1, 1, 0);\nparkingSystem.addCar(1); // 返回 true ，因为有 1 个空的大车位\nparkingSystem.addCar(2); // 返回 true ，因为有 1 个空的中车位\nparkingSystem.addCar(3); // 返回 false ，因为没有空的小车位\nparkingSystem.addCar(1); // 返回 false ，因为没有空的大车位，唯一一个大车位已经被占据了\n</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>0 <= big, medium, small <= 1000</code></li>\n\t<li><code>carType</code> 取值为 <code>1</code>， <code>2</code> 或 <code>3</code></li>\n\t<li>最多会调用 <code>addCar</code> 函数 <code>1000</code> 次</li>\n</ul>\n",
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                    "lang": "C++",
                    "langSlug": "cpp",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Java",
                    "langSlug": "java",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Python",
                    "langSlug": "python",
                    "code": "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)",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Python3",
                    "langSlug": "python3",
                    "code": "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)",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "C",
                    "langSlug": "c",
                    "code": "\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*/",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "C#",
                    "langSlug": "csharp",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "JavaScript",
                    "langSlug": "javascript",
                    "code": "/**\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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "TypeScript",
                    "langSlug": "typescript",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "PHP",
                    "langSlug": "php",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Swift",
                    "langSlug": "swift",
                    "code": "\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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Kotlin",
                    "langSlug": "kotlin",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
                },
                {
                    "lang": "Dart",
                    "langSlug": "dart",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Go",
                    "langSlug": "golang",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Ruby",
                    "langSlug": "ruby",
                    "code": "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)",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Scala",
                    "langSlug": "scala",
                    "code": "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 * var obj = new ParkingSystem(big, medium, small)\n * var param_1 = obj.addCar(carType)\n */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Rust",
                    "langSlug": "rust",
                    "code": "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 */",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Racket",
                    "langSlug": "racket",
                    "code": "(define parking-system%\n  (class object%\n    (super-new)\n\n    ; big : exact-integer?\n\n    ; medium : exact-integer?\n\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\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))",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Erlang",
                    "langSlug": "erlang",
                    "code": "-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.",
                    "__typename": "CodeSnippetNode"
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                {
                    "lang": "Elixir",
                    "langSlug": "elixir",
                    "code": "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.",
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            "hints": [
                "Record number of parking slots still available for each car type."
            ],
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            "sampleTestCase": "[\"ParkingSystem\",\"addCar\",\"addCar\",\"addCar\",\"addCar\"]\n[[1,1,0],[1],[2],[3],[1]]",
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