2014年7月17日
CodeForces114E——Double Happiness(素数二次筛选)
摘要： Double HappinessOn the math lesson a teacher asked each pupil to come up with his own lucky numbers. As a fan of number theory Peter chose prime numbe... 阅读全文
posted @ 2014-07-17 19:09 Enumz 阅读(393) 评论(0) 推荐(0)