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Cod sursa(job #151043)
#include<fstream.h>
#define dim 50001
#define inf 10001
long long c[dim][dim],n,m[dim],d[dim];
ofstream fout("dijkstra.out");
void initializare()
{long long i,j,m2,x,y,cost;
ifstream fin("dijkstra.in");
fin>>n>>m2;
for(i=1;i<=n;i++)
for(j=i+1;j<=n;j++)
c[j][i]=c[i][j]=inf;
for(i=1;i<=m2;i++)
{fin>>x>>y>>cost;
c[x][y]=cost;
}
for(i=1;i<=n;i++)
d[i]=c[1][i];
m[1]=1;
fin.close();
}
void afisare()
{long long i;
for(i=2;i<=n;i++)
fout<<d[i]<<" ";
fout<<'\n';
fout.close();
}
int main()
{long long i,vf,j;
long long dmin;
initializare();
for(j=1;j<n;j++)
{dmin=inf;
for(i=1;i<=n;i++)
if((!m[i])&&(dmin>d[i]))
{dmin=d[i];
vf=i;
}
m[vf]=1;
for(i=1;i<=n;i++)
if((!m[i])&&(d[i]>(dmin+c[vf][i])))
d[i]=dmin+c[vf][i];
}
afisare();
return 0;
}