There was a bug in example tests, I fixed it. After you reset the trainer (remember to back up your solution first!), you should be able to run example tests without problems now.

If there is still some other problem, please raise a separate issue.

It means two things:

• Tests have a bug and present values incorrectly, and
• Your solution has a bug and returns values which are not exact enough. In your specific case, you should not need rounding at all.

I created an issue to fix tests, but you also need to fix your solution.

It's difficult to tell exactly without seeing the code, but just by hearing what it was about, the solution does not sound right.

Does the bug happen with your current answer or did you change it?

But your solution passes?