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以前看过一篇文章讲n个球的称法, 有个公式可以算出最少的称重次数.
netee
(netee)
(#239345@0)
Last Updated: 2001-10-27
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Replies, comments and Discussions:
不是微软试题,13个球,有一个球和其他的重量不一样,外观一样。用一个天平称三次,把那个球找出来。你能做到吗?嘿嘿。。。
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