Kruskal's Algorithm Implementation in CThis code, titled "Kruskal.c," is a C program that implements Kruskal's algorithm for finding the minimum spanning tree in an unconnected graph. It is copyrighted by ctu_85 and highlighted by yzfy. The algorithm starts by taking the number o...
Kruskal算法的基础是贪心算法(greedy algorithm)。 假设加权连通无向图含有V个顶点,有贪心算法生成最小生成树的步骤是: 步骤一:找到一种切分(cut),它产生的 最小生成树问题 定义了一个图的切分之后,就可以得到一个新的概念:如果一条边的两个端点,属于切分不同的两个阵营,就称 这条边为横切边(Crossing Edge)...
*/ #include <iostream> #include <vector> #include <algorithm> #include <utility> using namespace std; int n = 10001; vector<int> fa(n, -1); int find(int x) { return x == fa[x] ? x : fa[x] = find(fa[x]); } int main() { int v, e; cin >> v >> e; // 记录...
#include<cstdio> #include<algorithm> #include<cmath> using namespace std ; struct edge { int from ; int to ; float dis ; }; struct edge e[40005] ; int f[205] ; bool com(edge x, edge y) { return x.dis<y.dis ; } int getf(int x) { return f[x]==x ? f[x]:f[x]=...
#include <cstring> #include <algorithm> #include <vector> using namespace std; const int MAXNODE = 1010; const int MAXEDGE = 1000010; typedef int Type; struct Edge{ int u, v; Type d; Edge() {} Edge(int u, int v, Type d): u(u), v(v), d(d) {} ...
Kruskal算法是一种用于求解最小生成树问题的贪心算法。它的基本思想是:对于带权无向图,每次从边集中选择权重最小的边加入最小生成树,直到所有顶点都被包含在最小生成树中。以下是一个简单的Python实现:class Graph: def __init__(self, vertices): self.V = v
This article proposes a novel application of graph theory, supported by Kruskal''s maximal spanning tree algorithm, to search for the optimal network topology and to optimally convert an interconnected meshed network into a radial system to achieve best operational characteristics, cost, and control....
Defination 给一个无向连通图,生成一颗边权和最小的树 Algorithm Prime: 看作两个集合,每次找出集合间最小的边选入,把对应点选入。 该算法中,“集合”和“讨论集合之间的边”的思路很妙,在删边最短路和删点最短路中都有运用。 kruskal:sort边,从小到大加入。 Application 1.martix tree 定理 (咕...猜...
#include <cstdio> #include <cstring> #include <algorithm> #include <queue> #define N 200100 #define M 400100 #define INF 2147483647 using namespace std; typedef pair<int, int> pi; int T, n, m, q, k, s; struct Graph { struct Edge { int to, nxt, l, a; Edge() {} Edge(cons...
接下来n行,每行有两个浮点数表示点的x坐标y坐标.构造一棵最小生成树.用Kruskal做.先算出各条边的权值.再合并//View Code 1 #include <iostream> 2 #include <algorithm> 3 #include <cmath> 4 using namespace std; 5 const int MAX = 10000 + 10; 6 const int INF = 0x3fffffff; 7 in 阅读...