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Abhishek Chaudhary
Abhishek Chaudhary

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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.

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

SOLUTION:

class ParkingSystem:

    def __init__(self, big: int, medium: int, small: int):
        self.cap = [big, medium, small]
        self.ctr = [0, 0, 0]

    def addCar(self, carType: int) -> bool:
        if self.ctr[carType - 1] + 1 <= self.cap[carType - 1]:
            self.ctr[carType - 1] += 1
            return True
        return False


# Your ParkingSystem object will be instantiated and called as such:
# obj = ParkingSystem(big, medium, small)
# param_1 = obj.addCar(carType)
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Nishimotoson Kirven

Designing a modern parking system involves creating a user-friendly interface that streamlines the process of finding, reserving, and managing parking spaces. This system should include features like real-time availability, secure payment options, and integration with navigation tools to guide users to their spots. Incorporating solutions like R2Park r2park.com enhances the experience by offering easy registration, remote space management, and automated access control. The system should be scalable to accommodate various parking facilities, ensuring efficiency for both drivers and lot managers.