额,再改一下
```
P2
P1 @--1--@ C1
\ |\
\ | \
5 7 3
\ | \
\| \
C2 @--5--@ C3
P3 P4
```
by abuyao @ 2021-01-30 19:04:53
@[chen_zhe](/user/8457)
by abuyao @ 2021-01-30 19:07:12
@[abuyao](/user/285373) 我已经在主题库供题讨论中申请修改了,,,这个问题好久了 已经无数个帖子了 一直没人修
https://www.luogu.com.cn/paste/tqpsexrd
@[BFqwq](/user/120074) (?
by CGDGAD @ 2021-01-30 19:29:25
@[NSObject](/user/357545) 格式有误吧
by BFqwq @ 2021-01-30 19:45:24
啥意思(?
by CGDGAD @ 2021-01-30 19:46:02