2018年12月22日
18.12.22 luogu P3047 [USACO12FEB]附近的牛Nearby Cows
摘要： 题目描述 Farmer John has noticed that his cows often move between nearby fields. Taking this into account, he wants to plant enough grass in each of his f 阅读全文
posted @ 2018-12-22 11:13 TobicYAL 阅读(171) 评论(0) 推荐(0) 编辑