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The kata description is a little misleading: it says that "Each account number should have 9 digits", however it is not always the case.
I agree with the fact that author has to at least mention the fact that you need to work around this special case. Right now the description of the task and the expected results are different. Which is not a problem to work around, but it's not right.
I don't see the point of having 2 parts of the 'Adding words' kata. If you solved the second part first (like I did) you can just copy the solution to part I and it will work.
Thanks! Now I need my half an hour of life back :D *JOKING
Just what I thought, thanks! :)
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Could you, please, explain what do you mean by that? I had almost the same solution as you have in your function f (without all that exra functions), but it did not pass, even though there clearly weren't any helowrd letters.
OK, I have the task finished. Now can someone explain me what is with the code length check and how did Voile's solution pass it?