1003. Emergency (25)
来源:互联网 发布:双色球参选数据2017年 编辑:程序博客网 时间:2024/05/29 17:27
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 marked on the map. When there is an emergency call to you from some other city, your job is to lead your men to the place as quickly as possible, and at the mean time, call up as many hands on the way as possible.
Input
Each input file contains one test case. For each test case, the first line contains 4 positive integers: N (<= 500) - the number of cities (and the cities are numbered from 0 to N-1), M - the number of roads, C1 and C2 - the cities that you are currently in and that you must save, respectively. The next line contains N integers, where the i-th integer is the number of rescue teams in the i-th city. Then M lines follow, each describes a road with three integers c1, c2 and L, which are the pair of cities connected by a road and the length of that road, respectively. It is guaranteed that there exists at least one path from C1 to C2.
Output
For each test case, print in one line two numbers: the number of different shortest paths between C1 and C2, and the maximum amount of rescue teams you can possibly gather.
All the numbers in a line must be separated by exactly one space, and there is no extra space allowed at the end of a line.
5 6 0 21 2 1 5 30 1 10 2 20 3 11 2 12 4 13 4 1Sample Output
2 4
#include<iostream>using namespace std;#define Maxn 501#define INF 10000000bool visited[Maxn];int teams[Maxn];int dist[Maxn];int graph[Maxn][Maxn];int Maxnumofteams[Maxn];int numofshortestpath[Maxn];int main(void){int N,M,C1,C2;int i,j;for(i=0;i<Maxn;++i){dist[i] = INF;numofshortestpath[i] = 1;visited[i] = false;}for(i=0;i<Maxn;++i)for(j=0;j<Maxn;++j){if(i==j)graph[i][j] = 0;elsegraph[i][j] = INF;}cin >> N >> M >> C1 >> C2;for(i=0;i<N;++i){cin>>teams[i];}int inputc1,inputc2,length;for(i=0;i<M;++i){cin >> inputc1>>inputc2>>length;graph[inputc1][inputc2] = length;graph[inputc2][inputc1] = length;}dist[C1] = 0;Maxnumofteams[C1]=teams[C1];visited[C1] = true;int newcity=C1;while(newcity != C2){for(i=0;i<N;++i){if(visited[i] == false){if(dist[i] > (dist[newcity] + graph[newcity][i])){dist[i] = dist[newcity] + graph[newcity][i];Maxnumofteams[i] = Maxnumofteams[newcity] + teams[i];numofshortestpath[i] = numofshortestpath[newcity];}else if(dist[i] == (dist[newcity] + graph[newcity][i])){numofshortestpath[i] += numofshortestpath[newcity];if(Maxnumofteams[i] < (Maxnumofteams[newcity] + teams[i])){Maxnumofteams[i] = Maxnumofteams[newcity] + teams[i];}}}}int mindist = INF;for(i=0;i<N;++i){if(dist[i] < mindist && visited[i] == false){mindist = dist[i];newcity = i;}}visited[newcity] = true;}cout << numofshortestpath[C2] << ' ' <<Maxnumofteams[C2];system("pause");return 0;}
- 1003. Emergency (25)
- 1003. Emergency (25)-PAT
- (PAT)1003. Emergency (25)
- 1003. Emergency (25)
- 【C++】1003. Emergency (25)*
- 1003. Emergency (25)
- PAT 1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- PAT 1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- [PAT]1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- 1003. Emergency (25)
- Maven入门指南④:仓库
- MyEclipse 2014跟2015破解
- android 在activity上的悬浮框、利用WindowManager和PopupWindow实现
- org.hibernate.hql.ast.QuerySyntaxException: XX is not mapped [from XX]
- jQury下的自动补全及插件jquery.autocomplete.min.js的使用
- 1003. Emergency (25)
- Spring浅析之注解之一@Service、@Component、@Controller、@Repository
- 迭代器删除之后的处理
- JS字符串对象
- CodeForces 495B Modular Equations
- org.hibernate.NonUniqueObjectException:a different object with the same identifier value was alread
- LeetCode 053 Maximum Subarray
- vijos1439 区间 (排序)
- js判断本地是否安装app