Well we all have seen the common questions on creating squares and hollow squares out of asterisks in C++, but how about creating a program that prints out a circle in asterisks? Obviously this would look like an oval due to line adjustment, but it would be quite interesting to see if someone could do it.
I have tried myself and I must admit it is a fairly decent challenge.
If you figure it out, post your code here!
Hint: r^2 = x^2 + y^2