Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10933    Accepted Submission(s): 3065 Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi.…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 8476    Accepted Submission(s): 2604 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4738 Description: Caocao was defeated by Zhug…

Caocao's Bridges 题意:曹操赤壁之战后卷土重来,他在n个小岛之间建立了m座桥.现在周瑜只有一颗炮弹,他只能炸毁一座桥使得这些岛屿不再连通.每座桥上都可能会有士兵把手,如果想安放***那么派出的士兵就不得少于桥上的士兵.求周瑜最少需要多少士兵. 思路:首先三大坑点:图原来就不连通所以不用炸毁任何一座桥.两个小岛之间有重边,那么不管炸毁哪座都无影响,也就是说重边不是桥.如果桥上本来就没有士兵是不是不用派出呢, 当然不是,还要一个放***的啊..... int ti,top,ans,q…

题目链接:https://vjudge.net/problem/HDU-4738 A network administrator manages a large network. The network consists of N computers and M links between pairs of computers. Any pair of computers are connected directly or indirectly by successive links, so d…

http://acm.hdu.edu.cn/showproblem.php?pid=4738 题目大意:曹操赤壁之战大败,于是卷土重来.为了避免水上作战,他在长江上建立了一些岛屿,这样他的士兵就可以在岛屿上攻击到 周瑜的军队.同时,为了更方便各个岛屿的支援与部署,他在一些岛屿之间又修建了一些桥,并且在桥上准备了一些守卫的士兵.周瑜 看到后当然要破坏这些岛屿的连接,然而诸葛亮只给他留下了一个bomb,他如果想要炸毁一座桥需要派出至少和守卫士兵数相等的敢死队 去.问最少需要派出多少人. 很佩服出题人…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4738 题意:在有重边的无向图中,求权值最小的桥. 注意trick就好了,ans为0时输出1,总要有一个人去丢炸弹吧... //STATUS:C++_AC_62MS_8144KB #include <functional> #include <algorithm> #include <iostream> //#include <ext/rope> #include…

一眼题:找所有的桥,然后求最小权值 但是有很多坑点 1:如果本来不联通 输出0,(这个坑我知道) 2:但是还有一个坑,就是当整个连通,最小桥的权值是0时,也必须派一个人去,wa了无数遍(还是太年轻) #include <iostream> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <string> #include…

题意: 曹操有N个岛,这些岛用M座桥连接起来,每座桥有士兵把守(也可能没有),周瑜想让这N个岛不连通,但只能炸掉一座桥,并且炸掉一座桥需要派出不小于守桥士兵数的人去,桥的守兵数为0时,也需要派出一个人去炸桥. 思路: 首先判断图是否连通,不连通则不需要去炸桥,输出0.图连通,则可以用Tarjan找割边,割边不存在输出-1表示不能达到目的,找到所有的割边,只需要炸掉其中守兵数最少的桥即可. 代码: #include<string.h> #include<cstdio> #includ…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1231    Accepted Submission(s): 478 Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi. B…

Caocao's Bridges Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3992    Accepted Submission(s): 1250 Problem Description Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi.…