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比赛刚完就AC了,郁闷啊In Reply To:Re:900多MS才过, 那些300多MS的是如何做的啊 Posted by:Csea at 2006-09-16 14:21:33 我是把0-431的每个数的素因数和素因数的个数先存下来 然后从n-k+1扫描到n,把它们每个数的素因数的使用次数累加起来 再减去1-k的素因数使用次数 在把每个素因数的使用次数+1,累乘起来就是答案 300MS的是怎么做的 Followed by:
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