停车场管理。设有一个可以停放n辆汽车的狭长停车场（先进后出），它只有一个大门可以供车辆进出。车辆按到达停车场时间的先后依次从停车场最里面向大门口处停放-Car park management. With a strip of n cars parking Parking (advanced out), it is only one door can be used for vehicle access. Vehicle to reach the parking time has in turn