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这定理太强大了!~~

Posted by inowfordream at 2009-11-27 21:00:54 on Problem 2960
In Reply To:Sprague-Grundy定理 Posted by:20062875 at 2009-05-05 10:15:47
> Sprague-Grundy定理:游戏和的SG函数等于各子游戏SG函数的Nim和(二进制异或)

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