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怎么说呢,我的做法是先一遍dfs求所有割边,只后floodfill缩点,yilinghello ms就是求双连通过的,他说,点小于3时,分量无割点即无割边...In Reply To:不过还是很囧，继续WA，我同一个程序交上去，先CE，后来又RE，费解。 Posted by:MetalHeart at 2008-12-06 23:00:17 Followed by:
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