Its not. Very simple bcoz using just a single mehod that returs 0 if negative or an addition result. Very logical and concise solution.

Nice ,short, and clean code congratulation !!

chars argument is a pointer to a constant characters i.e., you cannot modify the contents of address to which it points to but can modify what string it points to

dude,It must be the best way to do this

no, it returns with commas

But this solution return number without "," (commas)

chatgpt (not to be offensive)

this one made me laugh. love it!

I knew there was a way to do this..

yeap, it's best with O(n)

Your solution does the same you just take up another line to copy the contents of the initial string into a new one.

this kata makes me feel bad :(