[这里](https://www.luogu.com.cn/problem/P6175)
by novax @ 2020-08-02 17:54:39
@[草1药人](/user/299810) 不能，要用Floyd
by Kubic @ 2020-08-02 17:57:57
可以 dfs 吧，bfs 应该也行
当然正解应该是 Floyd
by iMya_nlgau @ 2020-08-02 17:59:15
@[zhengqinyuan](/user/291481) 谢谢dalao
by issue_is_fw @ 2020-08-02 18:03:48
@[Kubic](/user/119621) ok!
by issue_is_fw @ 2020-08-02 18:04:01