2018SDIBT_国庆个人第三场
摘要：
A - A CodeForces - 1042A There are nn benches in the Berland Central park. It is known that aiai people are currently sitting on the ii-th bench. Anot 阅读全文
posted @ 2018-10-03 17:46 一只小毛球 阅读(248) 评论(0) 推荐(0) 编辑