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100到此一游,没看discuss用了纯粹的二分lis,不是严格上升用upper_bound(),严格上升用lower_bound(),看来对二分lis还是理解不够啊。居然没注意到1<=D<=3 QAQ

Posted by _Katherine_J at 2013-10-01 20:00:55 on Problem 3670 and last updated at 2013-10-01 20:41:49


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