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怎么表达long long TLE int ac的心情

Posted by litter at 2010-04-01 18:51:19 on Problem 2888 and last updated at 2010-04-01 19:00:54
不过,n分解再dfs枚举因子,Phi跟n分解都加了根号优化,逆元也是拓展欧几里德求的,矩阵先预处理 2^i ,在快速幂还800+的心情狂郁闷... 还能优化啥...
貌似暴力枚举因子更快?!

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