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.
Failed when I submit, but every test case i throw at it works flawlessly.
The only thing I get during submit is:
"testShuffled
RuntimeException: Can't peek at an empty datastructure"
I know what would cause that error but I need to see the test case to fix it. That's not enough info.