求助MLE

P4114 Qtree1

qwq
by Jerry_heng @ 2023-08-14 20:28:15


@[Jerry_heng](/user/763878) ```cpp if(dep[u]<dep[v])swap(u,v); ``` 改成 ```cpp if(dep[top[u]<dep[top[v])swap(u,v); ```
by sane1981 @ 2023-08-20 09:44:25


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