牛客多校第六场 G Pikachu(树形dp)

连接:https://www.nowcoder.com/acm/contest/144/G 来源:牛客网  node 题目描述 In Viridian forest there is a tree T formed by N nodes, each edge on which has a positive weight. There is an undirected graph G generat
相关文章
相关标签/搜索