The Di-Triangle

#include <iostream>

using namespace std;

int main ()
{
    int j,k,b;
    k = 2;
    int a = 0;
    b = 18;
    int y = 1;
    for (int i = 10; i > 0; i -= 1)
    {
        int x = 1;
        j = 0;
        while (j<k)
        {
            cout << "*";

            a = 0;
            if (x == y)
            {
                while (a < b)
                {
                    cout << " ";
                    a++;
                }
            b -= 2;
            }
            j++;
            x++;
        }
        k += 2;
        y++;
        cout <<  endl;
    }

    ;
    cin.get();
    return 0;
}