浙大pat 1003

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
using namespace std;
#define MAX_NUMBER 100000000 
int G[510][510];
int current_team[510];
bool visit[510];
int dist[510];
int paths[510];
int max_teams[510];
void dij(int N,int C1, int C2)
{
    int i,j,k;
    dist[C1] = 0;
    paths[C1] =1;
    max_teams[C1] = current_team[C1];
    for(i=0;i<N;i++)
    {
        int _min = MAX_NUMBER;
        int u =0;
        for(j=0;j<N;j++) //选取距离最近点
        {
            if(visit[j]==false && dist[j] < _min)  
            {
                _min = dist[j];
                u = j;
            }
        }
        if(u == C2 || _min== MAX_NUMBER) //已经更新到目标点或者没有路径
        {
            break;
        }
        visit[u] = true; 
        for(k=0;k<N;k++) //更新最小距离
        {
            if(visit[k]) //若是已经在集合中，则继续
                continue;
            int temp_dist = dist[u] + G[u][k]; //u是最小距离中间点
            if(temp_dist < dist[k])
            {
                dist[k] = temp_dist;
                paths[k] = paths[u];  //说明目前只有一个路径
                max_teams[k] = max_teams[u]+ current_team[k];
            }
            else if(temp_dist == dist[k]) //路径相同，则再比较最大帮助人
            {
                paths[k] += paths[u]; //多路径累加
                if(max_teams[u]+current_team[k] > max_teams[k])
                    max_teams[k] = max_teams[u]+current_team[k];  
            }
        }
    }
    printf("%d %d
",paths[C2],max_teams[C2]);
}
int main()
{
    int N,M,C1,C2;
    int i,j,k;
    int temp_i,temp_j;
    int temp_weight;
    int min_length;
    int teams =0;
    while(scanf("%d %d %d %d",&N,&M,&C1,&C2)!=EOF)
    {
        teams =0;
        for(i =0;i<N;i++)
            scanf("%d",&current_team[i]);
        for(i =0;i<N;i++)
        {
            paths[i] = 0;
            dist[i] = MAX_NUMBER;
            visit[i] = false;
        }
        for(i=0;i<N;i++)
            for(j=0;j<N;j++)
            {
                G[i][j] = MAX_NUMBER;
                G[j][i] = MAX_NUMBER;
            }
            for(i=0;i<M;i++)
            {
                scanf("%d %d %d",&temp_i,&temp_j,&temp_weight);
                G[temp_i][temp_j] = temp_weight;
                G[temp_j][temp_i] = temp_weight;
            }
            dij(N,C1,C2);
    }
    return 0;
}