Different Circle Permutation HDU - 5868(burnside引理+递推+矩阵快速幂+欧拉函数)
You may not know this but it’s a fact that Xinghai Square is Asia’s largest city square. It is located in Dalian and, of course, a landmark of the city. It’s an ideal place for outing any time of the y
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2017-09-07 13:58:35 ·
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