Detail of message

Online Judge

Problem Set

Authors

Online Contests

User

Re:用神马并查集啊，无算法解诀。

Posted by maxupeng at 2011-03-23 16:03:12 on Problem 1308
In Reply To:用神马并查集啊，无算法解诀。 Posted by:lhbxr at 2011-02-22 21:22:43

> 解题报告：
> http://blog.sina.com.cn/807949392lhb

LZ，这种情况呢？
1 2 3 4 4 3 0 0 -1 -1
1的入度为0
2 3 4的入度均为1
这是森林，不是树

Followed by:

Post your reply here: