链接:https://www.nowcoder.com/acm/contest/145/A
来源:牛客网
Minimum Cost Perfect Matching
时间限制:C/C++ 1秒,其他语言2秒
空间限制:C/C++ 262144K,其他语言524288K
Special Judge, 64bit IO Format: %lld
题目描述
You have a complete bipartite graph where each part contains exactly n nodes, numbered from 0 to n - 1 inclusive.
The weight of the edge connecting two vertices with numbers x and y is
(bitwise AND).
Your task is to find a minimum cost perfect matching of the graph, i.e. each vertex on the left side matches with exactly one vertex on the right side and vice versa. The cost of a matching is the sum of cost of the edges in the matching.
denotes the bit

本文详细探讨了牛客网ACM多校训练营中的一道问题——Minimum Cost Perfect Matching。该问题涉及完全二分图的最小代价完美匹配,其中边的权重由按位与操作决定。通过分析,得出结论:对于任何大小的图,总能找到一种匹配方式,使得匹配成本为0。解决方案是从最大值开始,找到与之按位与为0的配对,直至所有节点匹配完成。
最低0.47元/天 解锁文章
7592

被折叠的 条评论
为什么被折叠?



