题目链接:http://poj.org/problem?id=3522思路:题目要求最小生成树中最大边与最小边的最小差值,由于数据不是很大,我们可以枚举最小生成树的最小边,然后kruskal求最小生成树,直到不能生成生成树为止,然后取最小的差值即可. #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> using namespace std; #define MA…

http://poj.org/problem?id=3522 Slim Span Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 5666   Accepted: 2965 Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G is a…

kruskal思想,排序后暴力枚举从任意边开始能够组成的最小生成树 #include <cstdio> #include <algorithm> using namespace std; const int maxn = 101; const int maxe = maxn * maxn / 2; struct edge{ int f,t,c; bool operator <(edge e2)const { return c<e2.c; } }e[maxe]; int…

Slim Span Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 9546   Accepted: 5076 Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G is an ordered pair (V, E), where V …

Slim Span Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 7102   Accepted: 3761 Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G is an ordered pair (V, E), where V …

题目链接:http://poj.org/problem?id=3522 Time Limit: 5000MS Memory Limit: 65536K Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G is an ordered pair (V, E), where V is a set of verti…

题目链接:http://poj.org/problem?id=3522 Slim Span Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 7522   Accepted: 3988 Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G…

题目链接:http://poj.org/problem?id=2349 思路:由于有S个专门的通道,我们可以先求一次最小生成树,然后对于最小生成树上的边从大到小排序,前S-1条边用S-1个卫星通道连接,那么第S大条边就是我们要找的最小的D了. #include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespa…

Slim Span Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://poj.org/problem?id=3522 Description Given an undirected weighted graph G, you should find one of spanning trees specified as follows. The graph G is an ordered pair (V, E), where V is a se…

题目链接http://poj.org/problem?id=3522 kruskal+并查集,注意特殊情况比如1,0 .0,1.1,1 #include<cstdio> #include<iostream> #include<algorithm> #include<climits> using namespace std; #define MAXN 5005 struct edge{ int u,v,cost; }; int comp(const edge&…