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标题: 数学213题 貌似不用考虑xyrt各不相同啊 [打印本页]

作者: evil1989    时间: 2010-12-19 13:31
标题: 数学213题 貌似不用考虑xyrt各不相同啊
若y不能被t整除  y和t肯定是不相同啊




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