Design Parking System Python Solution

lcpy gen -n 1603   # by problem number
lcpy gen -s design_parking_system   # by problem name

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.

class ParkingSystem:
    # Time: O(1) per call
    # Space: O(1)
    def __init__(self, big: int, medium: int, small: int) -> None:
        self.spaces = [big, medium, small]

    def add_car(self, car_type: int) -> bool:
        if self.spaces[car_type - 1] == 0:
            return False
        self.spaces[car_type - 1] -= 1
        return True