_cyle_King @ 2023-02-11 15:14:07
rt，很容易就能想到缩点后跑拓扑排序，建议更改为蓝。
by _cyle_King @ 2023-02-11 15:15:45
不知道该 @ 谁，有人能帮忙 @ 一下吗？
by RNTBW @ 2023-02-11 15:18:02
@_cyle_King @Alex_Wei @yurzhang
by wbs200 @ 2023-02-11 15:26:46
@_cyle_King 下次您可以直接反馈到 https://www.luogu.com.cn/discuss/566567