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分解质因子用枚举就足够了。但是只用分解到 sqrt(N) 以内的质内子。比 sqrt(N) 大的质因子最多只有一个。In Reply To:为什么我用了公式还是TLE吖！！ Posted by:380757580 at 2008-07-26 16:32:20 Followed by: Post your reply here: |
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