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.
This comment is hidden because it contains spoiler information about the solution
One of my issues with katas is that there's no context, so we have no idea what metric is more important for any given kata, so it's impossible to make the performance vs code size vs readability judgement call.
I chose code size, but I'm aware that comes with performance problems shrug you gotta choose something ;)