http://poj.org/problem?id=1679 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…
The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 20421 Accepted: 7183 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undir…
可以依次枚举MST上的各条边并删去再求最小生成树,如果结果和第一次求的一样,那就是最小生成树不唯一. 用prim算法,时间复杂度O(n^3). #include<cstdio> #include<cstring> using namespace std; #define MAXN 111 #define INF (1<<30) struct Edge{ int u,v; }edge[MAXN]; int NE; int n,G[MAXN][MAXN]; int lowc…
Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 22335 Accepted: 7922 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undirected graph G =…
The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 25203 Accepted: 8995 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: 24034 Accepted: 8535 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: 19941 Accepted: 6999 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undir…
