create 1603-design-parking-system.cs

Author: NotADucc

csharp/1603-design-parking-system.cs

@@ -0,0 +1,16 @@
+public class ParkingSystem
+{
+    private int[] spaces;
+
+    public ParkingSystem(int big, int medium, int small)
+    {
+        spaces = [big, medium, small];
+    }
+
+    public bool AddCar(int carType)
+    {
+        if (spaces[carType - 1] <= 0) return false;
+        spaces[carType - 1] -= 1;
+        return true;
+    }
+}