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北京大学《ACM/ICPC大学生程序设计竞赛训练》暑期课面向全球招生!

Re:这题真么做啊,貌似组合数学,但不会,有人讲讲思路吗

Posted by libanghui at 2005-09-10 17:41:36 on Problem 2603
In Reply To:这题真么做啊,貌似组合数学,但不会,有人讲讲思路吗 Posted by:fjnu_jxd_010 at 2005-09-10 09:48:41
哈哈
才10000
因式分解~找出所有素数因子的个数~比如说36=2(2)*3(2),那么因子总数为(2+1)*(2+1)=9个,10000之能的素数很好搞吧~才1254个~

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