2022年8月28日
luogu P2882 [USACO07MAR]Face The Right Way G
摘要： 题目描述 Farmer John has arranged his N (1 ≤ N ≤ 5,000) cows in a row and many of them are facing forward, like good cows. Some of them are facing backwar 阅读全文
posted @ 2022-08-28 17:19 huaziqi 阅读(27) 评论(0) 推荐(0)