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黑象只会走黑格!

Posted by Egia at 2009-11-30 16:27:57 on Problem 1657 and last updated at 2009-11-30 16:30:47
关于象的几点提示:
1.可以把它的路线看做车的路线旋转45度
2.黑象最终只会走到黑格,白象最终只会走到白格
3.若(x+y)%2=0为黑格,那么(x+y)%2=1则为白格

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