g1601_1700.s1603_design_parking_system

Class ParkingSystem

java.lang.Object

g1601_1700.s1603_design_parking_system.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 Summary

Constructors

Constructor and Description
ParkingSystem(int big, int medium, int small)

Method Summary

Modifier and Type	Method and Description
boolean	addCar(int carType)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ParkingSystem

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

Method Detail

addCar

public boolean addCar(int carType)