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如楼下所说, 不必均匀地翻啊。 比如前三个,如果翻12,23, 就等于翻了13。无穷种组合, 感觉是可以的。不过没自己试。

windsorgirl (紫玉兰)
(#11455136@0)
2018-4-1 -05:00
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Back To Topic: 7 个硬币,从 HTHTTHH 到 HTHTHTT,每一步只能翻两个相邻的俩硬币,几步能达到?谢谢。

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