萌新刚学 OI，求助 WA+TLE 的树套树

P3380 【模板】树套树

@[SIXIANG](/user/298549) 我测怎么是RE 8pts,AC 2pts![](//图.tk/g5)
by little_cindy @ 2021-08-24 10:35:09

@[little_cindy](/user/357311) /fad 为啥我有 WA 的/kel
by SIXIANG32 @ 2021-08-24 10:35:36

@[little_cindy](/user/357311) 啊不对，MAXN 应该是 10000000，放错代码了，抱歉/kel
by SIXIANG32 @ 2021-08-24 10:36:06

![](//图.tk/g2)
by little_cindy @ 2021-08-24 10:40:15

@[little_cindy](/user/357311) 帮帮蒟蒻吧/kel
by SIXIANG32 @ 2021-08-24 10:42:05

@[SIXIANG](/user/298549) O2=40pts![](//图.tk/6)
by little_cindy @ 2021-08-24 10:55:05

@[little_cindy](/user/357311) ！？！/jk 《O2 的力量》能帮忙看看 WA 是怎么回事吗？蒟蒻调不动惹/kk
by SIXIANG32 @ 2021-08-24 10:56:26

@[SIXIANG](/user/298549) 我是普二蒟蒻，我也不会做。![](//图.tk/0)![](//图.tk/0)![](//图.tk/0)![](//图.tk/7)![](//图.tk/7)![](//图.tk/7)![](//图.tk/q)![](//图.tk/q)![](//图.tk/q)![](//图.tk/s)![](//图.tk/s)![](//图.tk/s)
by little_cindy @ 2021-08-24 11:01:17

@[little_cindy](/user/357311) ![](https://xn--wcs.tk/7)![](https://xn--wcs.tk/7)![](https://xn--wcs.tk/7)
by SIXIANG32 @ 2021-08-24 11:01:57

人萎了，好像前后继也有错的。。。。
by SIXIANG32 @ 2021-08-24 11:02:25