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a stone和one stone是有区别的吧。。。In Reply To:题意理解严重有问题，1 2 2 1 答案是1，我觉得应该是0,两个1是被两个2分开的啊，符合要求啊 Posted by:Archangel at 2006-08-18 15:48:40 Followed by:
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