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读写文件的时间不是固定的么?

Posted by frkstyc at 2005-05-24 14:18:17 on Problem 1981
In Reply To:我出题的时候遇到一个超BT的问题。。。 Posted by:js05 at 2005-05-24 14:17:40
> 一个题,好不容易优化成线性的。。。
> 
> 可是读写文件时间太长了,和nlogn的拉不开差距,这怎么办啊?

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