Nice glad you enjoyed it. The top solution on the solutins page has a nice explanation.

Thanks again, I just submitted it :)

And it works like that, but it wasn't marked, I marked it.

Sorry new to codewars! Ill delete the comment. I thought marking it as "spoiler" meant it couldnt be seen by those who havent completed it, based on another thread I read

Have a read below if you are stuck 👍

ok, Thank You.

That is because there is a more efficient way to solve this problem than your code. It's not about number of lines, it's about how many times you iterate through the input. You should not use any for loops.
And in future this is a question not an issue because it is a problem with your code.

Hi, My code(15 lines) passes all the tests, yet I get "Execution Timed Out (12000 ms)" when attempting to submit it?

davidmbedford, please don't post solutions in Discourse.

:D