Networking---poj1287最小生成树】的更多相关文章

题意: 给出n个节点,再有m条边,这m条边代表从a节点到b节点电缆的长度,现在要你将所有节点都连起来,并且使长度最小 思路: 这是个标准的最小生成树的问题,用prim的时候需要注意的是他有重边,取边最小的那条加入图里就可以了,但是kruskal可以忽略这个问题 代码: prim: #include <iostream> #define maxn 55 #define inf 1<<29 using namespace std; int map[maxn][maxn]; int n,…
Networking 题目链接: http://acm.hust.edu.cn/vjudge/contest/124434#problem/B Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of possible routes for the…
题意  给你n个点 m条边  求最小生成树的权 这是最裸的最小生成树了 #include<cstdio> #include<cstring> #include<algorithm> using namespace std; const int N = 55, M = 3000; int par[N], n, m, ans; struct edge{int u, v, w;} e[M]; bool cmp(edge a, edge b){return a.w < b…
Networking Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7321   Accepted: 3977 Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of po…
id=1287">Networking Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 5976   Accepted: 3231 Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and…
Networking Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of possible routes for the cables that may connect pairs of points. For each possible ro…
Networking Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 7753   Accepted: 4247 Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of po…
Description You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of possible routes for the cables that may connect pairs of points. For each possible route between…
You are assigned to design network connections between certain points in a wide area. You are given a set of points in the area, and a set of possible routes for the cables that may connect pairs of points. For each possible route between two points,…
今天刷一下水题练手入门,明天继续. poj1861 Network(最小生成树)新手入门题. 题意:输出连接方案中最长的单根网线长度(必须使这个值是所有方案中最小的),然后输出方案. 题解:本题没有直接求生成树,但如果连接n个集线器的方案多于n-1条边,那么必存在回路,因此去掉某些边剩下的边和所有顶点构成一个生成树.对于一个图的最小生成树来说,它的最大边满足所有生成树的最大边里最小,正和题意. 吐槽:题目样例是错的... #include<cstdio> #include<cstring…