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#include<fstream>
using namespace std;
fstream f("royfloyd.in",ios::in);
fstream g("royfloyd.out",ios::out);
int a[30][30],i,j,k,n;
int main()
{
f>>n;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
f>>a[i][j];
for(k=1;k<=n;i++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(a[i][j]==0 && k!=i && k!=j)
a[i][j]=a[i][k]*a[k][j];
for(i=1;i<=n;i++)
{for(j=1;j<=n;j++)
g<<a[i][j]<<" ";
g<<endl;}
return 0;}