2015年9月28日

C. Beautiful Numbers

摘要： C. Beautiful Numbers Problem Description Vitaly is a very weird man. He's got two favorite digits a and b. Vitaly calls a positive integer good, if th 阅读全文

posted @ 2015-09-28 20:22 hnust_accqx 阅读(857) 评论(0) 推荐(0)

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