第二行的“/”是我不小心打上去的，代码中没有。
by wangmaocheng @ 2022-06-12 23:14:37
MLE还是TLE？
by hdkghc @ 2022-06-13 07:15:55
这个 cr 函数给我看傻了
by StarLbright40 @ 2022-06-13 07:17:08
```cpp
int find(int x)
{
if(a[x] == x) return x;
return a[x] = find(a[x]);
}
```
cr是什么？
by hdkghc @ 2022-06-13 07:17:55
```cpp
bool merge(int x, int y) // success?
{
int f1 = a[x], f2 = a[y];
if(f1 == f2) return false;
a[f2] = f1;
return true;
}
```
@[wangmaocheng](/user/553849)
by hdkghc @ 2022-06-13 07:20:48
cr这里是插入的意思，函数名不怎么会起
by wangmaocheng @ 2022-06-14 23:22:11
谢谢
[@hdkghc](https://www.luogu.com.cn/user/346134)
此贴结
by wangmaocheng @ 2022-06-19 22:22:39