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.
Because the Codewars test suite has tests your outside setup does not have. This usually often includes more demanding tests as well as random tests.
I don't understand, why my programm failed test, because I check my result in other sites.