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Posted by godofwa2 at 2012-08-10 22:17:52 on Problem 2777
In Reply To:贴数据。过了discuss里数据还是WA的进来看。 Posted by:MasterR at 2010-11-24 23:29:51
让我发现我忘了判断区间两个端点的大小,有可能将区间填充为颜色1,让mark下传到左右子区间,

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