2018年5月11日
LightOJ - 1259 Goldbach`s Conjecture（素数筛法）
摘要： Goldbach's conjecture is one of the oldest unsolved problems in number theory and in all of mathematics. It states:Every even integer,... 阅读全文
posted @ 2018-05-11 16:35 _大美 阅读(142) 评论(0) 推荐(0) 编辑
Steps POJ - 2590
摘要： StepsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 8219 Accepted: 3747DescriptionOne steps through integer points of the... 阅读全文
posted @ 2018-05-11 10:31 _大美 阅读(120) 评论(0) 推荐(0) 编辑
LightOJ - 1336 Sigma Function （因子和）
摘要： Sigma function is an interesting function in Number Theory. It is denoted by the Greek letter Sigma (σ). This function actually denote... 阅读全文
posted @ 2018-05-11 09:42 _大美 阅读(171) 评论(0) 推荐(0) 编辑