This is a really clever solution! I don’t often see the use of $&, and I tend to forget that we can use it like that. The negation part is also quite clever. Very nice! ;)

pretty close to this one. Very glad!

good job!

Wow!

Ok my code was longer than that!
Good job by the way.

isn't id better to count? since it's non nullable e usually its the primary key witch makes guaranties the index?

I'm still learn, so i'm sorry if that makes no sense

same to same with different words

the joy of coding 😂 feel your pain

I mean it's only a 6 kyu task and it has a regex tag, so it was kind of implied, that it should probably be solved with a simple regex.

$ sign wasn't even necessary.

clean

I've just about done something similar, but my solution needs to be perfected

this solution will change the input parameter list by reference

nice