How to see hidden case in code coach

Question

Code coach

Answer 1

Unfortunately not possible. If you search for a specific testcase, you may find a solution in Q&A.

Answer 2

Amit Saxena this is not possible and is part of the challenge itself. Please reread the challenge completely and follow the instructions. Very easy to overlook something.
Thanks and happy coding.

Answer 3

I will reread the question. Hope it works. Yet hidden case but for what?
We are here to practise and learn then what to hide and why. Atleast reason of wrong must be informed like time complexity or run time error or something else.