Cod sursa(job #1414438)

Utilizator rangerChihai Mihai ranger Data 2 aprilie 2015 16:56:11
Problema Algoritmul lui Dijkstra Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.75 kb
#include<fstream>
#include<vector>
#include<queue>
using namespace std;

#define pb push_back
#define mp make_pair
#define N 50004
#define inf 1000000000

ifstream cin("dijkstra.in");
ofstream cout("dijkstra.out");

int n,m,i,a,b,c;
vector<pair<int,int> > g[N];
vector<int> d(N,inf);
queue<int> q;

int main()
{
    cin>>n>>m;
    for (i=1;i<=m;i++) cin>>a>>b>>c, g[a].pb(mp(b,c));
    d[1]=0;
    q.push(1);
    while (q.size()){
        int v=q.front();q.pop();
        for (i=0;i<g[v].size();i++){
            int to=g[v][i].first,len=g[v][i].second;
            if (d[v]+len<d[to]){
                d[to]=d[v]+len;
                q.push(to);
            }
        }
    }
    for (i=2;i<=n;i++) cout<<d[i]<<' ';
    return 0;
}