thanks for help!

Hi

Apologies for the late reply,

the problem lies with fact that you create your own Enumerator object, you should use the built-in one.

I've taken a look and I can't find the problem, could you by any chance post your code (marked as spoiler) here?

Hi, I am using ruby

Hi, what language are you using ?

Hello, why some tests expect Nill? See attached log:

Thanks for advice,
Radek

Random Tests
Testing: sequence_gen(-3, 3, -4, 15, 13, -1, -3, 10, -1, -5, 4, -7, 14)
Expected: nil, instead got: -3
Expected: nil, instead got: 3
Expected: nil, instead got: -4
Expected: nil, instead got: 15
Expected: nil, instead got: 13
Expected: nil, instead got: -1
Expected: nil, instead got: -3
Expected: nil, instead got: 10
Expected: nil, instead got: -1
Expected: nil, instead got: -5
Expected: nil, instead got: 4
Expected: nil, instead got: -7
Expected: nil, instead got: 14
Expected: nil, instead got: 35
Expected: nil, instead got: 73
Expected: nil, instead got: 143