（最小生成树次小生成树）The Unique MST -- POJ -- 1679

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The Unique MST POJ - 1679 (次小生成树)

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 following properties…

The Unique MST POJ - 1679 次小生成树prim

求次小生成树思路: 先把最小生成树求出来用一个Max[i][j] 数组把 i点到j 点的道路中权值最大的那个记录下来 used数组记录该条边有没有被最小生成树使用过把没有使用过的一条边加入最小生成树必然回形成一条回路在这条回路中减去除加入的边的权值最大的一条边原图必然保持连通 (如果此时权值最大的边和新加入的边权值相同则存在不同的最小生成树) 把每一条边加入再删除后即可得出次小生成树参考了: https://blog.csdn.net/qq_3395144…

次小生成树判断 unique MST

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 following properties…

K - The Unique MST - poj 1679

题目的意思已经说明了一切,次小生成树... ************************************************************************************ #include<algorithm> #include<stdio.h> #include<; ,}, pre[maxn]; , T = N-; ; i<=N; i++) { pre[i] = ; di…

Day5 - G - The Unique MST POJ - 1679

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 following properties…