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.
Your code being too slow is not a kata issue. Try to improve it.
Your solution has a bug, and your answers are not exactly as expected. You need to take a closer look:
Your solution is not completely correct, it's not a kata issue.