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Re:成都赛区的B题，黄教主和我想到现在脑袋都想爆了，请教各位大大怎么弄的？In Reply To:成都赛区的B题，黄教主和我想到现在脑袋都想爆了，请教各位大大怎么弄的？ Posted by:MetalHeart at 2008-12-06 16:35:23 把树看做dfs序列，然后用splay维护就行了吧... Followed by:
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