元旦爱心C++

#include
#include
using namespace std;
int main()
{
    double x,y,a;
    for (y=1.5f;y>-1.5f;y-=0.1f)
    {
        for (x=-1.5f;x<1.5f;x+=0.05f)
        {
            a=x*x+y*y-1;
            if((a*a*a-x*x*y*y*y)<=0)
                cout<<'*';
            else
                cout<<' ';
        }
        cout<