目录(?)[-]
本文出自 http://blog.csdn.net/shuangde800
题目点击打开链接
把1~n按逆时针顺序排成一个圆圈,从1开始没k个数字删除掉一个,知道所有数字都删完。
求最后删除的3个数。
我们已经知道了,怎么可以推出最后一个被删除的编号(可参考百度百科)
http://baike.baidu.com/view/213217.htm
f(1) = 0, 表示最后还剩下一个时,这个编号为0
f(n) = (f(n-1) + m) % n
那么保存最后第1,2,3个数,一直推到第一个即可。
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