lightoj 1097
摘要：
1097 - Lucky Number Lucky numbers are defined by a variation of the well-known sieve of Eratosthenes. Beginning with the natural numbers strike out al 阅读全文
posted @ 2017-04-22 12:54 焰 阅读(265) 评论(0) 推荐(0) 编辑
posted @ 2017-04-22 12:54 焰 阅读(265) 评论(0) 推荐(0) 编辑