摘要: study from : https://www.cnblogs.com/peng-ym/p/9446555.html study later: 之后再说…… (from https://www.luogu.org/problemnew/solution/P5325) 基础公式 一般套路 莫比乌斯反 阅读全文
posted @ 2019-02-21 21:51 congmingyige 阅读(159) 评论(0) 推荐(0) 编辑
摘要: study from: http://www.cnblogs.com/peng-ym/p/8647856.html 莫比乌斯 整数分块 http://www.cnblogs.com/peng-ym/p/8661118.html 求和符号变换学习 https://blog.csdn.net/anima 阅读全文
posted @ 2019-02-21 19:38 congmingyige 阅读(119) 评论(0) 推荐(0) 编辑
摘要: study from: http://www.cnblogs.com/zwfymqz/p/8244902.html https://blog.csdn.net/enjoy_pascal/article/details/81478582 luogu3803 https://www.luogu.org/ 阅读全文
posted @ 2019-02-21 16:36 congmingyige 阅读(152) 评论(0) 推荐(0) 编辑