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Re:没有结点||(恰有一个结点入度为0,其它都为1&&所有结点入度和=所有结点出度和)In Reply To:没有结点||(恰有一个结点入度为0,其它都为1&&所有结点入度和=所有结点出度和) Posted by:hmlog at 2008-07-25 14:42:54 不对: 一个有环,外加另一个树就不成立 Followed by: Post your reply here: |
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