Program to Draw Hollow diamond Shape in C++

Wap in C++ to Draw hollow Diamond shape in C++

For other triangle and diamonds shapes see -> Patterns and Shapes in C++

PROGRAM:

#include<iostream>
using namespace std;
int main()
{
    int size;
    cout<<"Enter size of Diamond: ";
    cin>>size;
    int z=1;
    for ( int i=0; i<=size; i++)
    {
        for (int j=size; j>i; j--)
        {
            cout<<" "; // printing space here
        }
        cout<<"*"; // printing asterisk here
        if ( i>0)
        {
            for ( int k=1; k<=z; k++)
            {
                cout<<" ";
            }
            z+=2;
            cout<<"*";
        }
        cout<<endl; // end line similar to n
    }
    z-=4;
    for (int i=0; i<=size-1; i++)
    {
        for (int j=0; j<=i; j++)
        {
            cout<<" ";
        }
        cout<<"*";
        for (int k=1; k<=z; k++)
        {
            cout<<" ";
        }
        z-=2;
        if (i!=size-1)
        {
            cout<<"*";
        }
        cout<<endl;
    }
    return 0;
}

OUTPUT:

Enter size of Diamond: 5
    *
   * *
  *   *
 *     *
*       *
 *     *
  *   *
   * *
    *