تحديات برمجيةالتحدي الخامس - حل التمرين الثالث بلغة C++

#include <iostream>

int main() {

    int n;

    do {
        std::cout << "Enter an odd number as the number of lines: ";
        std::cin >> n;
    }
    while (n <= 0 || n % 2 == 0);

    for (int i = 1; i <= n; i++)
    {
        if (i <= n / 2)
        {
            for (int k = 1; k <= n / 2; k++)
            {
                std::cout << " ";
            }

            std::cout << "*";

            for (int j = 1; j <= n / 2 - 1; j++)
            {
                if (i == 1 || i == n / 2 + 1)
                {
                    std::cout << "*";
                }
                else
                {
                    std::cout << " ";
                }
            }

            std::cout << "*";
        }
        else if (i == n / 2 + 1)
        {
            for (int j = 1; j <= n; j++)
            {
                std::cout << "*";
            }
        }
        else
        {
            std::cout << "*";

            for (int j = 1; j <= n / 2 - 1; j++)
            {
                if (i == n)
                {
                    std::cout << "*";
                }
                else
                {
                    std::cout << " ";
                }
            }

            std::cout << "*";
        }

        std::cout << "\n";
    }

    char end; std::cin >> end;
    return 0;

}

Enter an odd number as the number of lines: 9
    *****
    *   *
    *   *
    *   *
*********
*   *
*   *
*   *
*****