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Cod sursa(job #1833849)

Utilizator nickulNic Kul nickul Data 23 decembrie 2016 13:08:17
Problema Algoritmul lui Dijkstra Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.93 kb
#include <fstream>
#include <vector>
#include <list>

using namespace std;

ifstream fin("dijkstra.in");
ofstream fout("dijkstra.out");

int main()
{
    int n,m;
    vector<vector<int>> A;
    vector<bool> v;
    fin>>n>>m;
    A.resize(n);
    v.resize(n);
    for(int i=0;i<n;i++) A[i].resize(n);
    while(m--)
    {
        int a,b,c;
        fin>>a>>b>>c;
        A[a-1][b-1]=c;
    }
    list<int> d;
    d.push_back(0);
    v[0]=true;
    while(d.size())
    {
        int c=d.front();
        d.pop_front();
        for(int i=1;i<n;i++)
        {
            if((A[c][i]!=0)&&(A[0][i]==0||A[0][c]+A[c][i]<=A[0][i]))
            {
                A[0][i]=A[0][c]+A[c][i];
                if(v[i]==false)
                {
                    d.push_back(i);
                    v[i]=true;
                }
            }
        }
    }
    for(int i=1;i<n;i++) fout<<A[0][i]<<" ";
    return 0;
}