Mednoob is correct. I'm marking this as resolved.

Looking at the tests, I can assure you that it accepts your answers. I think it's because then in your result. It should be than.

I can't see your current algorithms, but if you are taking n = b-a square roots, then, yes, there is a faster way. In that case, if you think more carefully about what is needed to solve the problem, you can probably find a simple way to speed things up without changing your algo very much.

I am using math.sqrt to check for perfect squares. Is there a less time consuming approach?
I have passed all the tests but not the attempt session.