这就是我所指的问题。如果用户没有指定路线中的停靠站数量，那么给出的答案是有效的，但如果用户明确指定停靠站/连接的数量，该解决方案将如何改变？因此，这不会是一个最优路线问题（尽管它仍然是），而是更倾向于找到一条有N个站点（节点）的路线，同时仍然是最优的。
不幸的是，根据Hamiltonian路径问题。这意味着，如果你真的想解决找到恰好N个停止的最短路径的问题（当然，假设你不想要任何循环），那么你可能不应该期望得到一个在N中是多项式的算法。
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