Cod sursa(job #2868728)

Utilizator valentina_veleatVeleat Valentina-Georgiana valentina_veleat Data 11 martie 2022 09:53:43
Problema Algoritmul lui Dijkstra Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.05 kb
#include <bits/stdc++.h>
using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
int a[105][105],n,m,d[105],fv[105],x,y,c,p;
int inf=1000000000;
int main()
{
    f>>n>>m;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            a[i][j]=inf;
        }
    }
    for(int i=1;i<=m;i++)
    {
        f>>x>>y>>c;
        a[x][y]=c;
    }
    for(int i=1;i<=n;i++)
    {
        d[i]=a[1][i];
    }
    fv[1]=1;d[1]=0;
    d[0]=inf;
    for(int k=1;k<n;k++)
    {
        int pmax=0;
        for(int i=1;i<=n;i++)
        {
            if(fv[i]==0 && d[i]<d[pmax])pmax=i;
        }
        if(pmax>-1)
        {
            fv[pmax]=1;
            for(int i=1;i<=n;i++)
            {
                if(fv[i]==0 && d[i]>d[pmax]+a[pmax][i])
                {
                    d[i]=d[pmax]+a[pmax][i];
                }
            }
        }
    }
    for(int i=2;i<=n;i++)
    {
        //if(d[i]!=inf)
        g<<d[i]<<" ";
        //else g<<-1<<" ";
    }
    return 0;
}