贪心算法解决汽车加油问题。。 一辆汽车加满油后可以行驶N千米。旅途中有若干个加油站。若要使沿途的加油次数最少，设计一个有效的算法，指出应在那些加油站停靠加油。并证明你的算法能产生一个最优解。-Greedy algorithm to solve vehicle refueling. . Fill up a car after driving N km. There are several gas stations journey. To make the least number of refueling along the way to design an efficient algorithm, that should stop filling in those stations. And prove that your algorithm can produce an optimal solution.