I am confident in saying I have submitted the most convoluted and bugged out way of solving this possible... lol

It says see the sample tests, some language accept it, some others don't.

neat kata, but the instructions say None should be accepted in the case of all repeating characters, or an empty string, yet it doesn't pass if you do this, it only works by returning "''"... why say it would accept None if it doesn't actually accept it?

Standard Template Library, in C++

Whats STL? Google isn't returning anything that seems related to this kata...

anyone know why it's not accepting f strings?? it's returning none for the var name in the script here, but when I run the exact same thing on my own computer, it returns the correct string as it should...