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 from the parking lot inside the gate at the parking