Locked testcases

Question

Can anyone tell me why some test cases are hidden. Is there a way to see the input?
It stops me from learning because I cant see what is wrong with my code.

Answer 1

Some test cases are locked because otherwise you could just hardcode the solutions with a bunch of if statements, which defies the point of the challenges.
If you are absolutely stuck on one, you can copy the code into a playground project and open a thread here, showing your code and describing your problem, and the community will assist you.

Answer 2

Thanks a lot! I will try some more before I surrender!