In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They want to propagate theater and, most of all, Antique Comedies. They have printed invitation cards with all the necessa…

链接: http://poj.org/problem?id=1511 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=82829#problem/J 代码: #include <iostream> #include <cstring> #include <cstdio> #include <cstdlib> #include <algorithm> #include <vector…

http://poj.org/problem?id=1511 求解从1去其他顶点的最短距离之和. 加上其他顶点到1的最短距离之和. 边是单向的. 第一种很容易,直接一个最短路, 然后第二个,需要把边反向建一次,跑一个最短路就好. ★.cin  cout 超时 #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <algorithm> #…

题目链接:https://vjudge.net/problem/POJ-1511 思路:题目意思就是,从1出发到所有城市,再从所有城市回到1的最短时间. 那么我们只要正跑一次图,然后反向存边,再跑一次图,把所有单源最短路相加就是答案了. emmm,这题,很卡时间,作为一个懒人,用c++的输入输出,加了简单的快读,用了链式前项星, 还是险些通过,感觉遇到很大的输入数据,用c++时,最好减少空间申请和回收的开销,不然会卡. 我一个优先队列在函数申请用,T了,在全局申请,再清空就A了...当然,这是之…

Invitation Cards Time Limit: 8000MS   Memory Limit: 262144K Total Submissions: 18198   Accepted: 5969 Description In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They wan…

POJ 1511 Invitation Cards / UVA 721 Invitation Cards / SPOJ Invitation / UVAlive Invitation Cards / SCU 1132 Invitation Cards / ZOJ 2008 Invitation Cards / HDU 1535 (图论,最短路径) Description In the age of television, not many people attend theater perfor…

Invitation Cards Time Limit: 8000MS   Memory Limit: 262144K Total Submissions: 16178   Accepted: 5262 Description In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They wan…

题目传送门 1 2 题意:有向图,所有点先走到x点,在从x点返回,问其中最大的某点最短路程 分析:对图正反都跑一次最短路,开两个数组记录x到其余点的距离,这样就能求出来的最短路以及回去的最短路. POJ 3268 //#include <bits/stdc++.h> #include <cstdio> #include <queue> #include <algorithm> #include <cstring> using namespace…

Invitation Cards Time Limit : 16000/8000ms (Java/Other)   Memory Limit : 524288/262144K (Java/Other) Total Submission(s) : 7   Accepted Submission(s) : 1 Problem Description In the age of television, not many people attend theater performances. Antiq…

Invitation Cards 题目链接: http://acm.hust.edu.cn/vjudge/contest/122685#problem/J Description In the age of television, not many people attend theater performances. Antique Comedians of Malidinesia are aware of this fact. They want to propagate theater a…