$TLE$ $70$分
by qfpjm @ 2021-03-07 22:16:02
~~神奇的写法~~
by xfrvq @ 2021-03-07 22:18:04
$parent_i$更新时要100000次啊
by xfrvq @ 2021-03-07 22:18:41
1e4再乘上1e5会爆
by xfrvq @ 2021-03-07 22:20:10
union 这个写法太奇怪了，看一下题解吧
by CGDGAD @ 2021-03-07 22:20:27
```cpp
void union_(int v1, int v2) {
int p1 = find(v1);
int p2 = find(v2);
if (p1 != p2)
{
f[v1] = p2;
}
}
```
感觉这个才对
by CGDGAD @ 2021-03-07 22:22:05
合并时更新的话应该和暴力差不多
by 可持久化CRTrie @ 2021-03-07 23:24:53
没有体现出并查集的优势
by 可持久化CRTrie @ 2021-03-07 23:29:10