Cod sursa(job #2718680)

Utilizator Codrut112Codrut Copas Codrut112 Data 8 martie 2021 23:20:17
Problema Algoritmul lui Dijkstra Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.71 kb
#include <bits/stdc++.h>

using namespace std;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
int n,m,a[250005][5],rasp[50005],x,y,z,i,ok,nr;
int main()
{
    f>>n;
    f>>m;
    for(i=1; i<=m; i++)
    {
        f>>a[i][1]>>a[i][2]>>a[i][3];
        if(a[i][1]==1)rasp[a[i][2]]=a[i][3];
    }
    ok=0;
    for(i=2; i<=n; i++)rasp[i]=200000000;

    while(ok==0 and nr<=n)
    {ok=1;
        for(i=1;i<=m;i++)
        {
        x=a[i][1];
        y=a[i][2];
        z=a[i][3];
        if(rasp[x]+z<rasp[y])
        {
            rasp[y]=rasp[x]+z;
            ok=0;
        }
        }
nr++;
    }
    for(i=2; i<=n; i++)if(rasp[i]!=200000000)g<<rasp[i]<<" ";
        else g<<0;
}