Same here! Yours looks more elegant than mine. I used a for loop to creates the string! oops

In C, this is a very common practice and should be very obvious so I would say it is a best practice. The point you're getting at is good,t though. It's just doing a null check on this string in this way is idiomatic C.

just reload the page. In any case, that's not a kata issue (if still happening, that's on the github repo that you should raise an issue. If none already exists about it...)

Missing Language Error.

I am unable to select a progamming language and run the tests.

Clear and readable solution is always better than a clever solution in my eyes. Well done.

Can someone explain this solution? Thanks.