2019年8月30日
Different Circle Permutation （HDU - 5868） （欧拉函数+矩阵快速幂）
摘要： 题目： You may not know this but it's a fact that Xinghai Square is Asia's largest city square. It is located in Dalian and, of course, a landmark of the 阅读全文
posted @ 2019-08-30 13:23 Spring-Onion 阅读(211) 评论(0) 推荐(0) 编辑