说明：  这是一个贪心算法的c程序。贪心算法（也叫贪婪算法）不是某种特定的算法，而是一类抽象的算法，或者说只是一种思想，它的具体表现在，对解空间进行搜索时，不是机械地搜索，而是对局部进行择优选取，贪心算法的目的不是为了找到全部解，也当然找不出最优解，而只是找出一种可行解，这样就会得到惊人的高效性。因此，贪心算法也叫启发式搜索，这种启发就是所谓的“贪心策略”。
(This is a greedy algorithm c procedures. Greedy algorithm (also known as the greedy algorithm) is not a specific algorithm, but a kind of abstract algorithm, or just a thought, it is specifically manifested in the solution space search, the search is not mechanical, but the partial merit selection, greedy algorithm not for the purpose of to find all the solutions are, of course, unable to find the optimal solution, but only to find out a feasible solution, and this can be alarming efficiency. Therefore, the greedy algorithm is called heuristic search, which inspired the so-called "greedy strategy.")