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亲爱的素论~偶把第400道奉献给了你~

Posted by Moon_1st at 2011-08-16 16:41:07 on Problem 2429
可惜没能1A,一开始贪心WA,后来用搜索枚举因子组合,结果把正确的解剪掉了=_=,最后直接枚举所有sqrt(n)以内的因子组合成功AC~

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