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例子好像有点不对，可能我想错了吧，各路高手帮忙解释一下··多谢；

Posted by wzy885588 at 2012-07-26 18:11:58 on Problem 1013 
例子第三行ABIJ EFGH是不是有点凑巧了，如果换成ABIK EFGH或者ABJK EFGH的话，就需要再测一次才能找出假币了，也就是说，如果第三次是UP，就需要再测一次了吧，所以，应该第二次测得时候，不应该把剩余的三枚全部替换上去，一次替换一枚就可以了。
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