应为
```cpp
if(x==a[x])
```
by QcpyWcpyQ @ 2022-07-31 21:58:12
@[QcpyWcpyQ](/user/450861) 第六行
by QcpyWcpyQ @ 2022-07-31 21:58:29
@[aw_aw](/user/688891) `findfather` 函数中的第一个 `if` 里面的条件应为 `x == a[x]` 而非 `x = a[x]`。
by Galex @ 2022-07-31 21:58:54
@[QcpyWcpyQ](/user/450861) 谢谢dalao!!
by aw_aw @ 2022-07-31 21:59:23
@[Galex](/user/483037)
所以样例输出的问题...
by aw_aw @ 2022-07-31 22:00:42
@[aw_aw](/user/688891) 是不是应该先指出来是哪篇题解……
by ImposterAnYu @ 2022-07-31 22:49:15