一辆汽车加满油后可行驶n公里。旅途中有若干个加油站。设计一个有效算法，指出应在哪些加油站停靠加油，使沿途加油次数最少。 编程任务： 对于给定的n和k(k <= 10000)个加油站位置，编程计算最少加油次数。 -Top up after a car traveling n kilometers. The road has a number of gas stations. Design an effective algorithm that should be docked