@[Pollococido](/user/919410)
``` cpp
int find(int x) {
if (fa[x] != x) fa[x] = find(fa[x]);
else return fa[x];
}
```
改成
``` cpp
int find(int x) {
if (fa[x] != x) return fa[x] = find(fa[x]);
else return fa[x];
}
```
by yx666 @ 2024-07-10 22:27:25
谢dalao,已关
此贴结
by Pollococido @ 2024-07-10 22:44:59