ShortestDirectedCycle - 1point3acres


有向图最短Cycle
第二轮国人小哥哥，求有向图最短cycle
题目不难，不知道能不能过，过了可能也没法team match, 就当刷了两天题后的训练。。。

https://www.1point3acres.com/bbs ... read&tid=495022

我查了一下，参考题解在此。方便大家学习：
https://algs4.cs.princeton.edu/4 ... ctedCycle.java.html

可不可以这样：用Queue做广度优先搜索直到遍历到自身结点，就是最短。另外在加到queue的时候把bfs的parent结点也一起存，这样在bfs结束以后可以不断找parent得到路径，最后再把路径反转。


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