POJ - 1679 The Unique MST(次小生成树)

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20293   Accepted: 7124 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 35999   Accepted: 13145 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undir

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21737   Accepted: 7692 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire

Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undirected graph G = (V, E). A spanning tree of G is a subgraph of G, say T = (V', E'), with the followin

题目:poj 1679 The Unique MST 题意:给你一颗树,让你求最小生成树和次小生成树值是否相等. 分析:这个题目关键在于求解次小生成树. 方法是,依次枚举不在最小生成树上的边,然后添加到最小生成树上,然后把原树上添加了之后形成环的最长的边删去,知道一个最小的.就是次小生成树. 这些需要的都可以在求解最小生成树的时候处理出来. AC代码: #include <cstdio> #include <cstring> #include <iostream> #i

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20679   Accepted: 7255 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20430   Accepted: 7186 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire

The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 22668   Accepted: 8038 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire

题目链接:http://poj.org/problem?id=1679 The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 29408   Accepted: 10520 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spannin