The function returns -1 for such scenario, as per the kata description.

The third condition is: Float parameter "window" must be less than h.

If all three conditions are fulfilled, return a positive integer, otherwise return -1.

Does not work for simple test

nbYear(100, 5, 10, 1000)

Math is cool!

Not bad! )

My wrong )

Your solution is not displayed completely. Please, train this kata again and include the other foo's into scramble()

Performance and simple!

Thanks for your response!
Negative numbers are valid for an array, and these are not prime numbers.

Thank you very much. Its my first kata )

Oh right.

The thing about negative numbers still stands.

I thought N refers to the size of the list, not the content.

The inputs in the actual tests are completely bogus (fixed tests with negative numbers???? and very big numbers).

Did you write 1 < N < 100000 then just to not cohere to it at all to troll the hell out of us?

Not a new problem. Neither isPrime nor sum. Combining those totally unrelated things doesn't make it better, just worse.

Don't keep your reference solution in Preloaded. Just put it in Tests. It's a closure - user can't get at it. Preloaded is not.