```cpp
else if (! col[x])
{
low[x] = min(low[x],low[v]);
}
```
怎么能这么写呢，不应该是
```cpp
else if (! col[x])
{
low[x] = min(low[x],dfn[v]);
}
```
吗
@[BCZSX](/space/show?uid=126669)
by mzgwty @ 2019-04-06 12:01:24
@[Old_Wang](/space/show?uid=79075) 改了后还是未过样例
by BCZSX @ 2019-04-06 12:05:39
把
```cpp
for (int i = 1 ; i <= n ; ++ i)
{
for (int j = head[i] ; j ; j = edge[j].next)
{
int v = edge[j].v;
if (col[i] != col[v]) ++ out[col[v]];
}
}
```
改成
```cpp
for (int i = 1 ; i <= n ; ++ i)
{
for (int j = head[i] ; j ; j = edge[j].next)
{
int v = edge[j].v;
if (col[i] != col[v]) ++ out[col[i]];
}
}
```
by mzgwty @ 2019-04-06 12:13:04
@[BCZSX](/space/show?uid=126669)
by mzgwty @ 2019-04-06 12:13:24
@[Old_Wang](/space/show?uid=79075) 谢谢大佬，可是为什么要那样改呢？~~蒟蒻的小问题~~
by BCZSX @ 2019-04-06 12:14:55
@[BCZSX](/space/show?uid=126669)
你加的是出度，所以要给来源所属强连通分量加上一
by mzgwty @ 2019-04-06 12:17:26
@[Old_Wang](/space/show?uid=79075) 好的，谢谢大佬
by BCZSX @ 2019-04-06 12:18:57
# $$\huge\texttt{去}_{\small\texttt{萌}^{\large\texttt{的}}}^{\large\texttt{你}_{\small\texttt{新}}}$$
# $$\huge\texttt{去}_{\small\texttt{刚}^{\large\texttt{的}\small\texttt{I}}}^{\large\texttt{你}_{\small\texttt{学}\large\texttt{O}}}$$
by 美琴 @ 2019-04-06 12:52:36