```cpp
if(!dfn[y])
{
tarjan(y);
low[x]=min(low[y],low[x]);
if(low[y]>=dfn[x])
{
flag++;
if(x!=root||flag>1)cut[x]=1;
}
}
```
```
更改一下
去掉int fa
by muse_umbra @ 2019-06-14 14:50:52
@[museumbra](/space/show?uid=141940) [安利一下博客](https://www.cnblogs.com/y2823774827y/p/10179342.html)，里面有解释
by y2823774827y @ 2019-06-14 15:05:24
@y2823774827y\
明白了，感谢
by muse_umbra @ 2019-06-14 15:40:16
@[y2823774827y](/space/show?uid=88804)
再次感谢（嗯。。。场面一度尴尬）
by muse_umbra @ 2019-06-14 15:43:26