随笔分类 -  割边

摘要:1718: [Usaco2006 Jan] Redundant Paths 分离的路径 Description In order to get from one of the F (1 <= F <= 5,000) grazing fields (which are numbered 1..F) t 阅读全文
posted @ 2017-11-01 18:42 jzyy 阅读(189) 评论(0) 推荐(0)