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Re:我也用线段树的思想过了,157ms。主要是怕超内存限制,不敢真的构造线段树。

Posted by Fillchar at 2012-08-01 09:03:40 on Problem 3517
In Reply To:我用树状数组200MS过了。。。用递推16MS Posted by:prowind at 2009-09-19 16:40:07


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