diagonale_paralele

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int m[50][50],n,i,j,c;
    cin>>n;
    for (i=0; i<n; i++)
        for (j=0; j<n; j++)
            cin>>m[i][j];
    cout<<endl;
    for (j=0; j<n; j++)
    {
        i=0;
        c=j;
        if (i==c)
            continue;
        else
            while (c<n)
            {
                cout<<m[i][c]<<' ';
                i++;
                c++;
            }
        cout<<endl;
    }
    cout<<endl;
    for (i=0; i<n; i++)
    {
        c=i;
        j=0;
        if (c==j)
            continue;
        else
            while (c<n)
            {
                cout<<m[c][j]<<' ';
                c++;
                j++;
            }
        cout<<endl;
    }
    cout<<endl;
    for (j=0; j<n; j++)
    {
        i=0;
        c=j;
        if (c==n-i-1)
            continue;
        else
            while (c>-1)
            {
                cout<<m[i][c]<<' ';
                c--;
                i++;
            }
        cout<<endl;
    }
    cout<<endl;
    for (i=0; i<n; i++)
    {
        j=n-1;
        c=i;
        if (j==n-i-1)
            continue;
        else
            while (c<n)
            {
                cout<<m[c][j]<<' ';
                c++;
                j--;
            }
        cout<<endl;
    }
    cout<<endl;
    return 0;
}