تحديات برمجيةالتحدي السابع - حل التمرين الثاني 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++)
    {
        for (int j = 1; j <= n; j++)
        {
            if (i == 1 || i == n || i == j || j == n - i + 1)
            {
                std::cout << "*";
            }
            else
            {
                std::cout << " ";
            }
        }
        std::cout << "\n";
    }

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

}

Enter an odd number as the number of lines: 11
***********
 *       * 
  *     *  
   *   *   
    * *    
     *     
    * *    
   *   *   
  *     *  
 *       * 
***********