摘要: Distance Queries Time Limit: 2000MS Memory Limit: 30000K Total Submissions: 13987 Accepted: 4924 Case Time Limit: 1000MS Description Farmer John's cow 阅读全文
posted @ 2017-07-22 11:19 ISGuXing 阅读(189) 评论(0) 推荐(0) 编辑
摘要: There are n houses in the village and some bidirectional roads connecting them. Every day peole always like to ask like this "How far is it if I want 阅读全文
posted @ 2017-07-22 11:05 ISGuXing 阅读(146) 评论(0) 推荐(0) 编辑