2019年9月25日
P2213 [USACO14MAR]懒惰的牛The Lazy Cow_Sliver
摘要： 题目描述 It's a hot summer day, and Bessie the cow is feeling quite lazy. She wants to locate herself at a position in her field so that she can reach as 阅读全文
posted @ 2019-09-25 00:11 双子最可爱啦 阅读(354) 评论(0) 推荐(0) 编辑