头指针为什么没有++啊？
by Sakura_Peng @ 2017-10-15 21:58:10
@[hyj542682306](/space/show?uid=40808) Can You Help Me？
by zengqinyi @ 2017-10-15 21:58:12
@[陈智鹏\_peng\_](/space/show?uid=24812) 有++啊，在前面
by zengqinyi @ 2017-10-15 21:59:04
@[zengqinyi](/space/show?uid=47062) 哦哦，看见了，我眼瞎了=-=
by Sakura_Peng @ 2017-10-15 21:59:45
https://www.luogu.org/record/show?rid=3745061
by zengqinyi @ 2017-10-15 22:01:41
同问
by o_cean @ 2018-01-01 20:58:58
还有为什么要去重呀QAQ
（\\>=<//）
by o_cean @ 2018-01-01 21:00:46
可能有 **负权**
我刚刚就是拓扑排序不考虑负权和你WA的地方和值都一样QAQ
by 镉八君 @ 2018-02-28 19:43:43