Cpp-coding/Patterns/HollowDiamondPattern.cpp at main · TonyStark-19/Cpp-coding · GitHub

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#include <iostream>
using namespace std;

int main()
{

    int n = 4;

    // top
    for (int i = 0; i < n; i++)
    {
        // spaces
        for (int j = 0; j < n - i - 1; j++)
        {
            cout << " ";
        }

        cout << "*";

        if (i != 0)
        {
            // spaces
            for (int j = 0; j < 2 * i - 1; j++)
            {
                cout << " ";
            }

            cout << "*";
        }

        cout << endl;
    }

    // bottom
    for (int i = 0; i < n - 1; i++)
    {
        // spaces
        for (int j = 0; j < i + 1; j++)
        {
            cout << " ";
        }

        cout << "*";

        if (i != n - 2)
        {
            // spaces
            for (int j = 0; j < 2 * (n - i) - 5; j++)
            {
                cout << " ";
            }

            cout << "*";
        }

        cout << endl;
    }

    return 0;
}