Documentazione Esercizio

#include <iostream>
#include <iomanip>
using namespace std;
int** comb(int** a , int row , int col)
{
   int mid = col/2;
         for( int i = 0 ; i < row ; i++)
         for( int j = 0 ; j < col ; j++)
                a[i][j] = 0;
                a[0][mid] = 1;
     for( int i = 1 ; i < row ; i++)
        {
          for( int j = 1 ; j < col - 1 ; j++)
               a[i][j] = a[i-1][j-1] + a[i-1][j+1];
        }
   return a;
}
void d(int** ptr, int row, int col)
{
  cout << endl << endl;
    for ( int i = 0 ; i < row ; i++)
        {
        for ( int j = 0 ; j < col ; j++)
            {
                if( ptr[i][j] == 0)
                cout << "   ";
                else
                cout << setw(4) << right << ptr[i][j];
            }
            cout << endl;
        }
    cout << endl << endl;
}
int main()
{
    int **ptr, m, n;
    cout << "\nNumero di righe";
    cin >> m;
    n = 2 * m + 1;

    ptr = new int*[m];
    for( int i = 0 ; i < m ; i++)
        ptr[i] = new int[n];

        ptr = comb(ptr, m, n);

        d(ptr, m, n);

    return 0;
}