May be after converting string to char array null-terminate '\0' is absent at the end of char array

There might be something wrong...

This is not how you raise an issue. You need to provide clear logs, inputs, outputs... In brief, you must prove there is an issue, not make blur assumptions. Most issues raised are mistakes of OP.

See there: https://docs.codewars.com/training/troubleshooting/

I tried this and it didn't work, why would adding null's to a string solve this issue anyway?

I cout my output before returning the string and it's identical to the answer, but throws an error for some reason.

Thanks a lot!!

Thanks a lot! It helps me very much!

And you need to add exactly that number of '\0' chars.

Thanks for the workaround wizzerd!

Thanks wizzerd, that does the trick.

Thanks for your posts!