这道题是让求派出机器人的最少数量,乍一看以为是简单的求最小路径覆盖,后来发现错了,因为有的点可以走多次,而二分中每个点只能走一次,所以要先用floyd进行传递闭包,然后用二分 #include<stdio.h> #include<string.h> #define N 505 int match[N],visit[N]; int n,m; int g[N][N]; int DFS(int u) { int i; ;i<=n;i++) if(!visit[i]&&…

Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 6558   Accepted: 2644 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored…

http://poj.org/problem?id=2594 Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 7398   Accepted: 3025 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure explo…

Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 7455   Accepted: 3053 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored…

Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 8550   Accepted: 3495 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored…

                                             Treasure Exploration 复见此题,时隔久远,已忘,悲矣! 题意:用最少的机器人沿单向边走完(覆盖)全部的点.典型的最小路径覆盖,如果不懂二分图匹配可以参考:二分图大讲堂 先用floyd传递闭包,再求最大匹配,最小路径覆盖=V-最大二分匹配(最小点覆盖).为什么要用floyd传递闭包呢,每个点可以被多个机器人走过,博主就是这里没考虑到.. 我记得这个题是写过博客的....//领接矩阵匈牙利算…

Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 8193   Accepted: 3358 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure exploration? Have you ever explored treasure? If you neve…

POJ 2594 Treasure Exploration 题目链接 题意:有向无环图,求最少多少条路径能够覆盖整个图,点能够反复走 思路:和普通的最小路径覆盖不同的是,点能够反复走,那么事实上仅仅要在多一步.利用floyd求出传递闭包.然后依据这个新的图去做最小路径覆盖就可以 代码: #include <cstdio> #include <cstring> #include <vector> #include <algorithm> using names…

传送门:http://poj.org/problem?id=2594 Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 9802   Accepted: 3979 Description Have you ever read any book about treasure exploration? Have you ever see any film about treasure e…

Treasure Exploration Time Limit: 6000MS   Memory Limit: 65536K Total Submissions: 9794   Accepted: 3975 题目链接:http://poj.org/problem?id=2594 Description: Have you ever read any book about treasure exploration? Have you ever see any film about treasure…