停车场是一个可以停放n辆汽车的狭长通道，车辆按到达停车场时间的早晚依次从停车场最里向大门口处停放如果停车场已放满n辆车，则后来的车只能在停车场大门外的便道上等待，一旦停车场内有车开走，则排在便道上的第一辆车就进入停车场。-Parking is a parking lot can narrow channel n cars, vehicle parking lot at the time of the morning and evening in order to reach from the c