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Re:发现一个递推关系

Posted by wpolly at 2007-03-08 11:33:02 on Problem 2478
In Reply To:发现一个递推关系 Posted by:wpolly at 2007-03-08 11:26:23 
> 设所求的值是f(n),则
> sum(i=1..n)f(n/i)=n*(n-1)/2
1980829 wpolly 2478 Accepted 180K 328MS C 275B 2007-03-08 11:22:06
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