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Cod sursa(job #375828)
#include<iostream.h>
#include<fstream.h>
int i,j,k,n,m,a[250001][3],c[50001],ok;
ifstream f("dijkstra.in");
ofstream g("dijkstra.out");
int main()
{f>>n>>m;
for(i=2;i<=n;i++)
c[i]=2000000000;
for(i=1;i<=m;i++)
{f>>a[i][0]>>a[i][1]>>a[i][2];
if(a[i][0]==1) c[a[i][1]]=a[i][2];}
c[1]=0;
int nr=1;
while(ok==0 && nr<n)
{ok=1;
for(j=1;j<=m;j++)
if(c[a[j][2]] > c[a[j][1]] + a[j][3])
{c[a[j][1]]=c[a[j][0]]+a[j][2];
ok=0;}
nr++;}
for(i=2;i<=n;i++)
if(c[i]<2000000000) g<<c[i]<<" ";
else g<<"0 ";
return 0;
}