ggg

#include <iostream>

using namespace std;

int main()
{
    int v[20][20],i,j,n;
    cout<<"Numarul de linii si coloane=";
    cin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
         cout<<"v["<<i<<"]["<<j<<"]=";
         cin>>v[i][j];
        }
        cout<<endl;
    }
    cout<<"Matricea:"<<endl;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            cout<<v[i][j]<<" ";
        }
        cout<<endl;
    }
    cout<<"Diagonala principala: "<<endl;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(i==j)
            {
                cout<<v[i][j]<<" ";
            }
        }
    }
    cout<<endl;
    cout<<"Zona N:"<<endl;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(i<j && (i+j)<(n+1))
                cout<<v[i][j]<<" ";
        }
    }
    cout<<endl;
    cout<<"Zona E:"<<endl;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(i<j && (i+j)>(n+1))
            {
                cout<<v[i][j]<<" ";
            }
        }
    }
    return 0;
}