设停车场内只有一个可停放辆汽车的狭长通道且只有一个大门可供汽车进出。汽车在停车场内按车辆到达时的先后顺序依次由北向南排列（大门在最南端，最先到达的第一辆车停放在车场的最北端若车场内已停满N辆车，则最后来的汽车只能在门外的便道上等候，一旦停车场内有车开走，则排在便道上的第一辆车可开入；当停车场内某辆车要离开时由于停车场是狭长的通道，在它之后开入车场的车辆必须先退出车场为它让路待该车开出大门外后，为它让路的车辆再按原次序进入车场。在这里假设汽车不能从便道上开走。试设计一个停车场管理系统。-parking lots, only one can park vehicles crossing the narrow but only one door and out of cars.NPai sidewalk in the first one into the cart; When the car park within a certain vehicles to leave the car park is due to a narrow passage, after it into the garage of vehicles must first withdraw from the garage to make way for it to be a large open car door, to make way for its vehicles according to the original order to enter the depot. here the assumption that not from the sidewalk on the move. trial design of a car park management system.