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递推 T[n]=T[n-1]+上侧那条边可用点数*2(GCD判定)

Posted by MiXtEr at 2006-11-18 13:44:18 on Problem 3090
In Reply To:一定有规律,可是我还是没有找到.... Posted by:Morpheus at 2006-11-18 10:40:41


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