@[wzxx202125](/user/500240)
```cpp
// for(int i = 1;i<=m;i++);
// {
// int x,y;
// cin>>x>>y;
// join(x,y);
// }
```
"for(...)"后面多了一个";"
by luo_xiaoran @ 2023-03-31 14:53:48
@[luo_xiaoran](https://www.luogu.com.cn/user/605945) 谢谢
by Quirrel_dog @ 2023-03-31 18:43:34