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北京大学暑期课:《ACM/ICPC竞赛训练》面向全球招生

与3537思路类似,将问题转化为不能走下去的算输,3*3,3*2,2*2皆为不能再分的结构,sg值为零,其它以此三个值递推,详见sg函数相关论文

Posted by dut200901102 at 2010-10-11 20:11:43 on Problem 2311
RT~~

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