AFO
2018年10月19日
P3565 [POI2014]HOT-Hotels
摘要： 题目描述 There are nn towns in Byteotia, connected with only n 1n−1 roads. Each road directly links two towns. All the roads have the same length and are 阅读全文
posted @ 2018-10-19 10:13 ZUTTER☮ 阅读(195) 评论(0) 推荐(1) 编辑