I need to create a diamond in C++?

It has to have asterisks in the shape of a diamond, and ask the user for the number of rows (between 1 and 19)


This is what i have already (its not much)





#include %26lt;iostream%26gt;


#include %26lt;iomanip%26gt;


#include %26lt;cmath%26gt;





using namespace std;





int main ()


{


int size;





cout %26lt;%26lt; "Enter a number of rows between 1 and 19" %26lt;%26lt; endl;


cin %26gt;%26gt; size;





if ( size %26lt; 1 || size %26gt; 19)


{


cout %26lt;%26lt; "you must enter a number between 1 and 19" %26lt;%26lt; endl;


return 0;

I need to create a diamond in C++?
Does not look easy, may be you can contact a C++ expert live at website like http://oktutorial.com/ .