题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=5423 Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. There is one of them: For a tree T, let F(T,i) be t…
Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. There is one of them: For a tree T, let F(T,i) be the distance between vertice and vertice i.(The length of e…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5423 Rikka with Tree Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 321 Accepted Submission(s): 162 Problem Description As we know, Rikka is p…
Rikka with Tree Accepts: 207 Submissions: 815 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) 问题描述 众所周知,萌萌哒六花不擅长数学,所以勇太给了她一些数学问题做练习,其中有一道是这样的: 对于一棵树TT,令F(T,i)F(T,i)为点1到点ii的最短距离(边长是1). 两棵树AA和BB是相似的当且仅当他们顶点数相同且对于任意的…
Query on A Tree Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 132768/132768 K (Java/Others) Total Submission(s): 712 Accepted Submission(s): 266 Problem Description Monkey A lives on a tree, he always plays on this tree. One day, monke…
Problem Description XXX is very interested in algorithm. After learning the Prim algorithm and Kruskal algorithm of minimum spanning tree, XXX finds that there might be multiple solutions. Given an undirected weighted graph with n (1<=n<=100) vertex…
Revenge of Segment Tree Problem Description In computer science, a segment tree is a tree data structure for storing intervals, or segments. It allows querying which of the stored segments contain a given point. It is, in principle, a static structur…
Query on A Tree Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 132768/132768 K (Java/Others)Total Submission(s): 1238 Accepted Submission(s): 444 Problem Description Monkey A lives on a tree, he always plays on this tree.One day, monkey…
