传送门:http://poj.org/problem?id=2377 Bad Cowtractors Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 17373 Accepted: 7040 Description Bessie has been hired to build a cheap internet network among Farmer John's N (2 <= N <= 1,000) barns that…
题目连接 http://poj.org/problem?id=2377 Bad Cowtractors Description Bessie has been hired to build a cheap internet network among Farmer John's N (2 <= N <= 1,000) barns that are conveniently numbered 1..N. FJ has already done some surveying, and found…
Bad Cowtractors Bessie has been hired to build a cheap internet network among Farmer John's N (2 <= N <= 1,000) barns that are conveniently numbered 1..N. FJ has already done some surveying, and found M (1 <= M <= 20,000) possible connection r…
题意:给出一个图,求出其中的最大生成树= =如果无法产生树,输出-1. 思路:将边权降序再Kruskal,再检查一下是否只有一棵树即可,即根节点只有一个 #include <cstdio> #include <iostream> #include <algorithm> #include <cstring> using namespace std; int N, M; // 节点,边的数量 struct edge { int from, to, dist;…
Bad Cowtractors Time Limit : 2000/1000ms (Java/Other) Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 1 Accepted Submission(s) : 1 Problem Description Bessie has been hired to build a cheap internet network among Farmer John's N (…
Description Bessie has been hired to build a cheap internet network among Farmer John's N (2 <= N <= 1,000) barns that are conveniently numbered 1..N. FJ has already done some surveying, and found M (1 <= M <= 20,000) possible connection route…
