2019年4月3日
Codeforces Round #481 (Div. 3)Petya's Exams CodeForces - 978G
摘要： Petya studies at university. The current academic year finishes with nn special days. Petya needs to pass mm exams in those special days. The special 阅读全文
posted @ 2019-04-03 22:43 茄子Min 阅读(321) 评论(0) 推荐(0) 编辑