https://www.luogu.com.cn/record/108907258 by zxcen @ 2023-04-25 20:58:57
本人sb,此贴终,另不删帖,警示后人,本人此题死因 $115$ 行应为 $dis[v]=inf<<1$ ~~原来我一直写了个假剪枝~~ by zxcen @ 2023-04-25 21:00:13