2019年11月20日
Codeforces Round #601 (Div. 2)
摘要： A. Changing Volume Bob watches TV every day. He always sets the volume of his TV to bb. However, today he is angry to find out someone has changed the 阅读全文
posted @ 2019-11-20 18:14 __MEET 阅读(171) 评论(0) 推荐(0) 编辑