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<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 <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...
代码如下带有注释: 欢迎交流 #include<iostream>#include<cstdio> #include<cstring> #include<algorithm> using namespace std; int select(int shortedge[],int n) { int k,i,min1=9999... 查看原文 第二周 程序的多文件组织 #define M_H_INCLUDED #include<;iostream>; using namespace std; int ...
#include <cstdio> #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) {} ...
#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...
#include<cstdio> #include<algorithm> using namespace std; struct node{ int s,e,w; }a[10005]; int fa[10005]; int m; bool cmp(node a,node b){ return a.w < b.w; } int get(int i){ // 获取父节点,并进行路径压缩 if(fa[i] != i){ fa[i] = get(fa[i]); } return fa[...
#include<iostream>#include<cstring>#include<cstdio>#include<string>#include<queue>#include<vector>#include<map>#include<set>#include<ctime>#include<cmath>#include<cstdlib>#include<algorithm>#include<iomanip>usingnamespacestd;constintN=200010;constintINF=((1<<31)-1);intans[N],q[N];structcut...
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...