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Cod sursa(job #592632)
#include<stdio.h>
FILE *f,*g;
int t[4][250500],viz[50500]; long a[5000][5000]; long c[50500],i,n,m,st[500000],dist[50500],y,z,nr,p,u,q,x,fin[50500],inf;
int main()
{ f=fopen("dijkstra.in","r"); g=fopen("dijkstra.out","w");
fscanf(f,"%ld%ld",&n,&m);
for(i=1;i<=m;i++)
{ fscanf(f,"%ld%ld%ld",&x,&y,&z);
a[x][y] = z;
}
p=u=1; st[1]=1; dist[1]=0; inf=10000000; for(i=2;i<=n;i++) dist[i]=inf;
while(p<=u)
{
for (q=1; q <= n; q++)
if (a[st[p]][q]) //verifica daca exista muchie
if(dist[q]>dist[st[p]]+a[st[p]][q])
{ u++; st[u]=q; viz[q]=1; dist[q]=dist[st[p]]+a[st[p]][q]; }
p++;
}
for(i=2;i<=n;i++) if(viz[i]) fprintf(g,"%ld ",dist[i]); else fprintf(g,"0 ");
fclose(g);
return 0;
}