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.
Duplicate.
This is a beginner kata.
This comment is hidden because it contains spoiler information about the solution
It doesn't. That's what your solution returned.
I am a bit confused. How does [9,10,0] represent the number 999? I can see, I guess that the 10 can be converted to a 9(?) but why would it not be 990 then?
Instructions should specify individual values cannot be greater than 9, not 10.