# 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

# 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.

# Solution 1

class ParkingSystem:

def __init__(self, big: int, medium: int, small: int):

self.big=big

self.medium=medium

self.small=small

def addCar(self, carType: int) -> bool:

if(carType==1 and self.big!=0):

self.big=self.big-1

return True

if(carType==2 and self.medium!=0):

self.medium=self.medium-1

return True

if(carType==3 and self.small!=0):

self.small=self.small-1

return True

else:

return False

# Soution 2

class ParkingSystem:

def __init__(self, big: int, medium: int, small: int):

self.P=[big,medium,small]

def addCar(self, carType: int) -> bool:

self.P[carType -1] -=1

return self.P[carType-1]>=0