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Re:到底什么意思?

Posted by zyz at 2007-04-24 07:49:14 on Problem 3210
In Reply To:Re:到底什么意思? Posted by:HouXran at 2007-04-01 13:51:17
> 好像是 n个硬币投到桌子上,求一个最小的数字,不管投出什么情况,翻这个数字次硬币都可以使这 n个硬币全是正面或全是反面。

2怎么会是NO SOLUTION?
正 正   2
正 反   1
反 正   1
反 反   2
-->2

3怎么会是2?
正 正 正 3
正 正 反 2
正 反 反 2
反 反 反 3
-->3!!!

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