2016年9月29日
Codeforces Round #227 (Div. 2) E. George and Cards set内二分+树状数组
摘要： E. George and Cards George is a cat, so he loves playing very much. Vitaly put n cards in a row in front of George. Each card has one integer written 阅读全文
posted @ 2016-09-29 16:28 meekyan 阅读(192) 评论(0) 推荐(0) 编辑