```cpp
if(opo==1){
set.father[x1]=set.FindAncestor(x2);
}
```
改成
```cpp
if(opo==1){
set.father[set.FindAncestor(x1)]=set.FindAncestor(x2);
}
```
by Dream_weavers @ 2022-12-08 15:52:36
@[tamamocross](/user/754444)
by Dream_weavers @ 2022-12-08 15:53:19
@[Dream_weavers](/user/572482)
过了，感谢
by tamamocross @ 2022-12-09 09:49:19