C# one line solution
\npublic class ParkingSystem {\n    int[] p;\n    \n    public ParkingSystem(int big, int medium, int small) {\n        p = new int[] { big, medium, small };\n 
```\npublic class ParkingSystem {\n    int[] p;\n    \n    public ParkingSystem(int big, int medium, int small) {\n        p = new int[] { big, medium, small };\n    }\n    \n    public bool AddCar(int carType) {    \n        return --p[carType - 1] >= 0;\n    }\n}\n\n ```
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