http://poj.org/problem?id=1679 The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 17726 Accepted: 6150 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree
Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition (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 following
找出最小生成树,同时用Max[i][j]记录i到j的唯一路径上最大边权.然后用不在最小生成树里的边i-j来替换,看看是否差值为0. #include <algorithm> #include <cstdio> #include <cstring> using namespace std; const int N=101; const int INF=0x3f3f3f3f; int n,m,ans,s; int lowc[N],vis[N],g[N][N]; int Ma
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: 24201 Accepted: 8596 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
The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 29902 Accepted: 10697 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undi