True, I have no idea why I've decided to use this function

How so? Can you give me a name that will break this code?

That was the most difficult kata I've tried so far. It was much easier for me to solve some of the 4 kyu ones. But every one is different, I understand that. Thanks for kata. Took me around 7 hours to make it work

Interesting, great solution 👏 instead of doing the reverse like I did. Time complexity is O(n) if I'm correct, array_sum doesn't have an effect I guess

This is amazing! Some people are so smart. Great solutions

I thought that my solution was hard to read... After seeing this, I'm a happy man

Interesting...

That was the most interesting kata I've had on Codewards so far. Took me around 5 hours to solve it, but I love the fact that it's not easy and easy to understand. Thanks to all the contributors this kata exists. 👏 I wish I could solve it fast like other guys here in the comments, but it is what it is.

It took me 5 hours to solve it. I think it is 100% worth 4 kyu

Wow! Great job!

Wow, smart move

Thanks, I haven't even thought about that

Well... Can't do anything about it. At the moment I was submitting this code there were no warnings

Thanks Michael

Do it guys 😉