“答案正确”是自动判题系统给出的最令人欢喜的回复.本题属于PAT的“答案正确”大派送 —— 只要读入的字符串满足下列条件,系统就输出“答案正确”,否则输出“答案错误”. 得到“答案正确”的条件是: 1. 字符串中必须仅有P, A, T这三种字符,不可以包含其它字符:2. 任意形如 xPATx 的字符串都可以获得“答案正确”,其中 x 或者是空字符串,或者是仅由字母 A 组成的字符串:3. 如果 aPbTc 是正确的,那么 aPbATca 也是正确的,其中 a, b, c 均或者是空字符串,或者是…

As an emergency rescue team leader of a city, you are given a special map of your country. 作为一个城市的紧急救援队的领导人,你需要给出一个对于你们国家特别的地图. The map shows several scattered cities connected by some roads. 这个地图展示了几个分散的城市通过一些路连接着. Amount of rescue teams in each cit…

1003. Emergency (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount…

本题的背景是求定点和定点之间的最短路问题(所有的最短路 不是一个解  是全部解,方法手段来自数据结构课程中的迪杰斯特拉算法和dfs(深度优先遍历). 分别用两种方法编程如下代码 dfs #include <iostream> #include <cstring> #include <cstdio> using namespace std; #define maxv 510 bool visit[maxv]; int arc[maxv][maxv];//邻接矩阵 int…

1003 Emergency (25 分) As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between a…

1003. Emergency (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount…

As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some roads. Amount of rescue teams in each city and the length of each road between any pair of cities are…

(一)题意 题目链接:https://www.patest.cn/contests/pat-a-practise/1030 1030. Travel Plan (30) A traveler's map gives the distances between cities along the highways, together with the cost of each highway. Now you are supposed to write a program to help a tra…

There is a public bike service in Hangzhou City which provides great convenience to the tourists from all over the world. One may rent a bike at any station and return it to any other stations in the city. The Public Bike Management Center (PBMC) kee…

PAT甲级1003. Emergency 题意: 作为一个城市的紧急救援队长,你将得到一个你所在国家的特别地图.该地图显示了几条分散的城市,连接着一些道路.每个城市的救援队数量和任何一对城市之间的每条路线的长度在地图上标记.当你从其他城市发出紧急电话时, 你的工作是尽快引导你的人到这个地方,同时在途中尽可能多的呼唤城市中的别的救援队. 输入 每个输入文件包含一个测试用例.对于每个测试用例,第一行包含4个正整数:N(<= 500) - 城市数量(城市编号从0到N-1),M - 道路数量C1和C2…