In the Ruby version, the description says "None of the arrays will be empty, so you don't have to worry about that!" but one of the tests is an empty array.

This is the best solution.

I knew it but didn't know I knew

How stupid I am XDDD

😄

how ?

OP solved it, closing.

you should mark your comment with which language you've done this code.

hello my name is Aabdulhay and you

I was thinking of this while doing it but I could not remember. Trying to do it all from memory.

I can't do this anymore

that's an array of arrays. the nested array has 2 elements, but the outer array has only 1, so it is kept as is.

fixed.