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+// 1603. Design Parking System
+#include "leetcode.h"
+
+/*
+ * 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(big, medium, small)' initialises object of the
+ * 'ParkingSystem' class the number of slots for each parking space are given as
+ * part of the constructor
+ * - 'bool addCar(car_type)' checks whether there is a parking space of
+ * 'car_type' for the car that wants to get into the parking lot. 'car_type' can
+ * be of three kinds: big, medium, or small, which are represented by 1, 2, or
+ * 3, respectively. a car can only park in a parking space of its 'car_type'. if
+ * there is no space available, return false, else park the car in that size
+ * space and return true
+ */
+
+class ParkingSystem {
+public:
+ vector<int> vehicle;
+ ParkingSystem(int big, int medium, int small) {
+ vehicle = {big, medium, small};
+ }
+ bool addCar(int car_type) {
+ if (vehicle[car_type - 1]) {
+ vehicle[car_type - 1] -= 1;
+ return true;
+ }
+ return false;
+ }
+};
+
+int main() {
+ ParkingSystem *obj = new ParkingSystem(1, 1, 0);
+ printf("%d\n", obj->addCar(1)); // expect: 1
+ printf("%d\n", obj->addCar(2)); // expect: 1
+ printf("%d\n", obj->addCar(3)); // expect: 0
+ printf("%d\n", obj->addCar(1)); // expect: 0
+}