Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Why do people want to force stuff like this in one line?
Yeah i really disliked this too. But it is written in the details: "When the initial parameters are so that lng == wdth, the solution [lng] would be the most obvious but not in the spirit of this kata so, in that case, return None/nil/null/Nothing"
I did not count, but i think this does not cover every possible input :-D