2018年6月21日
Codeforces Round #489 (Div. 2) ABC
摘要： A. Nastya and an Array A. Nastya and an Array Nastya owns too many arrays now, so she wants to delete the least important of them. However, she discov 阅读全文
posted @ 2018-06-21 18:30 starry_sky 阅读(280) 评论(0) 推荐(0) 编辑