It noted to use memoization, not recursion, but the test suites in general are lacking so a lot of solutions which likely were not wanted to pass, do.

From the description it said I should strictly use recursion, but I passed also with a while loop.
Maybe you can add a check to see which method the user is using.

I was facing the same issue, try to see if you have an extra whitespace in the end of the first row, if you mark your result compare to the expexted it seems so.
Though i have to admit, it is a bit annoying :/

Nice to see familiar people :)

I enjoyed it!

I am very new to codewars but this one was way too easy, felt more like 7kyu or so, is it possible to edit it and to add some more challanging code to it?
If yes, would love to help with it.