2020年1月12日
Codeforces-613D Dr. Evil Underscores
摘要： Description Today, as a friendship gift, Bakry gave Badawy nn integers $a_1,a_2,…,a_n$ and challenged him to choose an integer $X$ such that the value 阅读全文
posted @ 2020-01-12 17:35 Artoriax 阅读(351) 评论(0) 推荐(0) 编辑