2019年7月30日
codeforces396C
摘要： On Changing Tree CodeForces - 396C You are given a rooted tree consisting of n vertices numbered from 1 to n. The root of the tree is a vertex number  阅读全文
posted @ 2019-07-30 21:02 yccdu 阅读(221) 评论(0) 推荐(0) 编辑
codeforces533E
摘要： Correcting Mistakes CodeForces - 533E Analyzing the mistakes people make while typing search queries is a complex and an interesting work. As there is 阅读全文
posted @ 2019-07-30 20:53 yccdu 阅读(259) 评论(0) 推荐(1) 编辑