摘要:
题目描述 小A 和小B 决定利用假期外出旅行,他们将想去的城市从 1到 N 编号,且编号较小的城市在编号较大的城市的西边,已知各个城市的海拔高度互不相同,记城市 i 的海拔高度为Hi,城市 i 和城市 j 之间的距离 d[i,j] 恰好是这两个城市海拔高度之差的绝对值,即d[i,j]=∣Hi 阅读全文
摘要:
Description Barney lives in country USC (United States of Charzeh). USC has n cities numbered from 1 through n and n - 1 roads between them. Cities an 阅读全文