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纳闷

Posted by frost at 2010-04-03 11:04:55 on Problem 1177
想了一天,终于搞定了严格nlogn的线段树算法,结果跑了几十毫秒,以前写的一个退化线段树,还跑得要快一些,0ms秒杀,不知为什么。。。

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