2017年8月19日
洛谷P2870 [USACO07DEC]最佳牛线，黄金Best Cow Line, Gold
摘要： 题目描述 FJ is about to take his N (1 ≤ N ≤ 30,000) cows to the annual"Farmer of the Year" competition. In this contest every farmer arranges his cows in 阅读全文
posted @ 2017-08-19 19:15 嘒彼小星 阅读(216) 评论(0) 推荐(0) 编辑