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Cod sursa(job #378618)
#include<stdio.h>
#include<vector>
#define pb push_back
#define mp make_pair
#define inf 500000001
using namespace std;
int main()
{
int n,m,d[50001],a,b,c,i,j;
vector < pair<int, pair<int,int> > > muchii;
pair <int,int> p;
FILE *f=fopen("dijkstra.in","r");
fscanf(f,"%i%i",&n,&m);
for(i=0;i<m;i++)
{
fscanf(f,"%i%i%i",&a,&b,&c);
muchii.push_back(mp(a,mp(b,c)));
}
fclose(f);
d[1]=0;
for(i=2;i<=n;i++)
d[i]=inf;
for(i=0;i<n-1;i++)
{
for(j=0;j<m;j++)
{
p=muchii[j].second;
if(d[muchii[j].first]+p.second<d[p.first])
d[p.first]=d[muchii[j].first]+p.second;
}
}
f=fopen("dijkstra.out","w");
for(i=2;i<=n;i++)
{
if(d[i]==inf)
d[i]=0;
fprintf(f,"%i ",d[i]);
}
fprintf(f,"%s","\n");
fclose(f);
return 0;
}