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Cod sursa(job #960369)
#include <fstream>
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
int a[101][101],n,i,j,k,oo=10000000;
int main()
{
fin>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
fin>>a[i][j];
if(!a[i][j])
a[i][j]=oo;
}
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=j&&i!=k&&j!=k&&a[i][j]>a[i][k]+a[k][j])
a[i][j]=a[i][k]+a[k][j];
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
if(a[i][j]==oo)
fout<<"0 ";
else
fout<<a[i][j]<<" ";
fout<<"\n";
}
return 0;
}