poj1258prim算法 /*poj 1258 *题意:有若干个农场,现需要将各个农场用光纤连接起来,各个农场之间连接的光纤长度也许不同, *要求求出使得将所有农场连接起来的最短光线长度 *算法分析:使用矩阵将各个农场之间的光线长度存储起来、然后使用prim算法 */ #include <stdio.h> #include <string.h> #define MaxInt 0x3...
kruskal算法的过程为不断对子图进行合并,直到形成最终的最小生成树。prim算法的过程则是只存在一个子图,不断选择顶点加入到该子图中,即通过对子图进行扩张,直到形成最终的最小生成树。 https://www.jianshu.com/p/cf21443b3838 此网址对着两种算法做了详细介绍 prim算法 最小生成树的一个典型问题 poj-1258 题意...
直接套prim算法就AC了 [cpp]view plaincopy 1#include<iostream> 2usingnamespacestd; 3intn; 4intG[105][105]; 5voidprim(){ 6intvis[105]; 7intdis[105]; 8intsum=0; 9for(inti=1;i<=n;i++){ 10vis[i]=0; 11dis[i]=999999;
int cost[MAXN][MAXN]; int lowcost[MAXN]; int visit[MAXN]; int prim(int n){ memset(visit, 0, sizeof(visit)); for(int i = 1; i <= n; ++i) lowcost[i] = cost[1][i]; visit[1] = 1; lowcost[1] = 0; int res = 0; for(int i = 2; i <= n; ++i) { int mi...
prim算法来自算法导论 核心:每一步都在连接集合A和A之外的结点的所有边中,选择一条轻量级边加入A,最终A中的边构成一棵最小生成树。因此集合A代表着最小生成树MST(mininum spanning tree)。 #include<bits/stdc++.h>usingnamespacestd;constintINF=0x3f;//无穷大constintN=100;intdis[N];//从MST集合A到A外...
poj 1258 Agri-Net (Prim) Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connectivity to all farms in the area. He needs your help, of course. Farmer John ordered a high speed connection for his farm and is going to share ...
AgriNet (poj 1258 最短路+prim) -电脑资料 2019-01-01 Language: Agri-NetTime Limit:1000MSMemory Limit:10000KTotal Submissions:40905Accepted:16682 Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connectivity to all farms in the area...
POJ-1258 Agri-Net(最小生成树+Prim算法) POJ-1258 Agri-Net(最小生成树+Prim算法) Agri-Net Time Limit: 1000MS Memory Limit: 10000K Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connectivity to all farms in the area. He ...
poj 1258 prim最小生成树 ...POJ-1258 Agri-Net (Prim) 题目链接:http://poj.org/problem?id=1258 雷同与 poj1789 求最小生成树的路径 代码: ...prim poj1258 luogu3366 小根堆 关于stl里面priority_queue 的各种写法 https://www.cnblogs.com/Deribs4/p/5657746.html...POJ-1258(Agri-Net) Prim...
POJ 1258 Agri-Net(Prim) 题目网址:http://poj.org/problem?id=1258 题目: Agri-Net Description Farmer John has been elected mayor of his town! One of his campaign promises was to bring internet connectivity to all farms in the area. He needs your help, of course....