{ "data": { "question": { "questionId": "1708", "questionFrontendId": "1603", "boundTopicId": null, "title": "Design Parking System", "titleSlug": "design-parking-system", "content": "

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.

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Implement the ParkingSystem class:

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Example 1:

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\nInput\n["ParkingSystem", "addCar", "addCar", "addCar", "addCar"]\n[[1, 1, 0], [1], [2], [3], [1]]\nOutput\n[null, true, true, false, false]\n\nExplanation\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
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Constraints:

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medium, small);\n * bool param_1 = obj->addCar(carType);\n */", "__typename": "CodeSnippetNode" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "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" }, { "lang": "Racket", "langSlug": "racket", "code": "(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))", "__typename": "CodeSnippetNode" }, { "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" }, { "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.", "__typename": "CodeSnippetNode" } ], "stats": "{\"totalAccepted\": \"261.4K\", \"totalSubmission\": \"296.7K\", \"totalAcceptedRaw\": 261449, \"totalSubmissionRaw\": 296731, \"acRate\": \"88.1%\"}", "hints": [ "Record number of parking slots still available for each car type." ], "solution": { "id": "1836", "canSeeDetail": true, "paidOnly": false, "hasVideoSolution": false, "paidOnlyVideo": true, "__typename": "ArticleNode" }, "status": null, "sampleTestCase": 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