dfs2里面的
```
dfs2(son[now],now);
```
应该改成
```
dfs2(son[now],topf);
```
by xuanxuan001 @ 2023-09-15 22:36:02
@[xuhaotian](/user/576448)
by xuanxuan001 @ 2023-09-15 22:36:37
谢谢
已关
by xuhaotian @ 2023-09-16 07:08:19
本帖结
by xuhaotian @ 2023-09-16 07:08:37