#include <iostream>
using namespace std;
int main()
{
int mc[10][10], n, i, j;
cout<<"dimensiunea? ";
cin>>n;
for(i=1; i<=n; i++)
for(j=1; j<=n; j++)
mc[i][j]=i*10+j;
cout<<endl<<endl;
cout<<"matricea:"<<endl<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
cout<<mc[i][j]<<" ";
cout<<endl;
}
cout<<endl<<endl;
cout<<"peste diag. princ.: ";
cout<<endl<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
if(i<j) cout<<mc[i][j]<<" ";
else cout<<" ";
cout<<endl;
}
cout<<endl<<endl;
cout<<"sub diag. princ.: ";
cout<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
if(i>j) cout<<mc[i][j]<<" ";
else cout<<" ";
cout<<endl;
}
cout<<endl<<endl;
cout<<"peste diag. sec.: ";
cout<<endl<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
if(i+j<n+1) cout<<mc[i][j]<<" ";
else cout<<" ";
cout<<endl;
}
cout<<endl<<endl;
cout<<"sub diag. sec.: ";
cout<<endl<<endl;
for(i=1; i<=n; i++){
for(j=1; j<=n; j++)
if(i+j>n+1) cout<<mc[i][j]<<" ";
else cout<<" ";
cout<<endl;
}
return 0;
}
