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.
Is there a problem like this in the world of work?
I'm still a beginner
If you look at the haskell solutions now only one passes. Everything else no longer does. The reference solution is incorrect now.