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Re:这样离散不会有问题

Posted by heimengnan at 2010-03-22 12:51:40 on Problem 2528
In Reply To:这样离散不会有问题 Posted by:haiwei624 at 2010-01-16 17:49:56
非常的赞楼上  haiwei624 将点树与线段树的区别写清楚! 
以前是我小白 还请见谅啊!

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