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注意图的特殊性In Reply To:shanghai C题怎么做？最小树形图zhu_liu算法？ Posted by:Xiaonei at 2009-09-20 17:01:04 一个连通块如果包含THE_WINDY那么一定是一棵树，否则一定是一个圈挂着若干棵树 贪心就可以了 Followed by: Post your reply here: |
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