1603. Design Parking System

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.

class ParkingSystem {
    int b, m, s;
public:
    ParkingSystem(int big, int medium, int small): b(big), m(medium), s(small) {
        
    }
    
    bool addCar(int carType) {
        if(carType == 3 and s) {
            s--;
            return true;
        } else if(carType == 2 and m) {
            m--;
            return true;
        } else if(carType == 1 and b) {
            b--;
            return true;
        }
        return false;
    }
};

/**
 * Your ParkingSystem object will be instantiated and called as such:
 * ParkingSystem* obj = new ParkingSystem(big, medium, small);
 * bool param_1 = obj->addCar(carType);
 */