地址:http://acm.split.hdu.edu.cn/showproblem.php?pid=6060 题目: RXD and dividing Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 522 Accepted Submission(s): 219 Problem Description RXD has a tr…
RXD and dividing Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 524288/524288 K (Java/Others)Total Submission(s): 1893 Accepted Submission(s): 809 Problem Description RXD has a tree T, with the size of n. Each edge has a cost.Define f(S) …
/* HDU 6060 - RXD and dividing [ 分析,图论 ] | 2017 Multi-University Training Contest 3 题意: 给一个 n 个节点的树,要求将 2-n 号节点分成 k 部分,然后将每一部分加上节点 1, 每一个子树的 val 为最小斯坦纳树,求总的最大 val 分析: 考虑每条边下面所在的子树,大小为num 由于该子树至多被分成 k 块,故该边最多贡献 k 次,贡献次数当然是越多越好 所以每条边的贡献为 w * min(k, num…
Problem Description RXD has a tree T, with the size of n. Each edge has a cost.Define f(S) as the the cost of the minimal Steiner Tree of the set S on tree T. he wants to divide 2,3,4,5,6,…n into k parts S1,S2,S3,…Sk,where ⋃Si={2,3,…,n} and for all d…
题目链接 Problem Description RXD has a tree T, with the size of n. Each edge has a cost. Define f(S) as the the cost of the minimal Steiner Tree of the set S on tree T. he wants to divide 2,3,4,5,6,-n into k parts S1,S2,S3,-Sk, where ⋃Si={2,3,-,n} and fo…
