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This approach leverages an array to manage the count of available parking slots for each type of car. The array indices correspond to the car types: index 0 for big cars, index 1 for medium, and index 2 for small. The addCar function decrements the corresponding index if space is available.
Time Complexity: O(1) for each addCar operation as we are directly accessing an array element.
Space Complexity: O(1) as only a fixed-size array is used.
1public class ParkingSystem {
2 private int[] slots;
3
4 public ParkingSystem(int big, int medium, int small) {
5 slots = new int[] {big, medium, small};
6 }
7
8 public bool AddCar(int carType) {
9 if (slots[carType - 1] > 0) {
10 slots[carType - 1]--;
11 return true;
12 }
13 return false;
14 }
15}In C#, an array tracks the count of slots. The AddCar method validates the request and adjusts the available count appropriately, leveraging array indexing.
This method uses distinct variables to handle each type of car's parking slots. This approach makes the code very clear for small data sets. While this isn't necessarily more efficient than the array method for this particular problem, it offers an alternative for simple systems where explicit clarity is beneficial.
Time Complexity: O(1) for checking and updating.
Space Complexity: O(1) as three variables track the state.
1
This C implementation uses separate integer variables to track each type of parking slot. Each addCar operation checks the respective variable based on car type and decrements it if possible.