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Cod sursa(job #943349)
#include <fstream>
using namespace std;
int n,c[101][101];
int const inf=2000;
int main()
{
int k,i,j;
ifstream f1("royfloyd.in");
f1>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
f1>>k;
if(k)
c[i][j]=k;
else
c[i][j]=inf;
}
f1.close();
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(c[i][k]+c[k][j]<c[i][j]&&i!=j)
c[i][j]=c[i][k]+c[k][j];
ofstream f2("royfloyd.out");
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
if(c[i][j]<2000)
f2<<c[i][j]<<" ";
else
f2<<"0 ";
f2<<'\n';
}
f2.close();
return 0;
}