Package g1601_1700.s1603_design_parking_system

Class ParkingSystem

  • public class ParkingSystem
extends Object
    1603 - Design Parking System.

    Easy

    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.

    Implement the ParkingSystem class:

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

    Example 1:

    Input [“ParkingSystem”, “addCar”, “addCar”, “addCar”, “addCar”] [[1, 1, 0], [1], [2], [3], [1]]

    Output: [null, true, true, false, false]

    Explanation:

    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.

    Constraints:

    • 0 <= big, medium, small <= 1000
    • carType is 1, 2, or 3
    • At most 1000 calls will be made to addCar

    • Constructor Detail

      • ParkingSystem

        public ParkingSystem​(int big,
                     int medium,
                     int small)

    • Method Detail

      • addCar

        public boolean addCar​(int carType)