C++ program to print hollow diamond star pattern

Example

Input :

Enter N: 5

Output :

************* ****************
************   ***************
***********     **************
**********       *************
*********         ************
**********       *************
***********     **************
************   ***************
************* ****************

Required Knowledge

Basic C++ programming, if-else, for loop, nested loop

Program to print hollow diamond star pattern

/**
 * C++ program to print hollow diamond star pattern
 */

#include <iostream>
using namespace std;

int main()
{
    int i, j, n;

    cout<<"Enter value of n : ";
    cin>>n;

    // Loop to print upper half of the pattern
    for(i=1; i<=n; i++)
    {
        for(j=i; j<=n; j++)
        {
            cout<<"*";
        }

        for(j=1; j<=(2*i-2); j++)
        {
            cout<<" ";
        }

        for(j=i; j<=n; j++)
        {
            cout<<"*";
        }

        cout<<"\n";
    }

    // Loop to print lower half of the pattern
    for(i=1; i<=n; i++)
    {
        for(j=1; j<=i; j++)
        {
            cout<<"*";
        }

        for(j=(2*i-2); j<(2*n-2); j++)
        {
            cout<<" ";
        }
        for(j=1; j<=i; j++)
        {
            cout<<"*";
        }

        cout<<"\n";
    }

    return 0;
}