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Re:n个数组如何快速合并?

Posted by guoxi022 at 2006-04-24 19:56:48
In Reply To:Re:n个数组如何快速合并? Posted by:frkstyc at 2006-04-24 19:34:12
> 假设存在O(n)的数组合并算法,那么对任意n个数,将每一个数看成一个只有一个元素的数组,由假设,可以在O(n)时间内将其合并成一个有序数组,即排序问题可以在O(n)时间内解决,这与排序问题的时间下界Ω(nlogn)矛盾,故假设不成立,不存在O(n)的数组合并算法。
> 

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