第15行,把 ``` edge[maxn] ``` 改为 ``` edge[maxn<<1] ``` 。第18行,把 ``` tree[maxn] ``` 改为 ``` tree[maxn<<2] ``` 。双向边开两倍空间,线段树开四倍空间
by helintai @ 2023-10-15 09:46:34
@[Ikun_Teddy](/user/748700)
by helintai @ 2023-10-15 09:48:39