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"title": "Design Parking System",
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"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> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input</strong>\n["ParkingSystem", "addCar", "addCar", "addCar", "addCar"]\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> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>0 <= big, medium, small <= 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",
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"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 */",
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"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 */",
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"lang": "Python",
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"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)",
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"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)",
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"lang": "C",
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"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*/",
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"lang": "C#",
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"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 */",
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"lang": "JavaScript",
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"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 */",
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"lang": "Ruby",
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"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)",
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"lang": "Swift",
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"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 */",
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"lang": "Go",
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"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 */",
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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 */",
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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 */",
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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 */",
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"lang": "PHP",
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"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 */",
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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 */",
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"lang": "Racket",
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"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))",
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"lang": "Erlang",
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"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.",
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"lang": "Elixir",
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"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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