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.
This kata sounds easy enough for a 5kyu, even with bruteforce.
Also is your harder version going to change the base algorithm many solutions already use?
I think there should be code length limitation for the problem (to prevent hard-coding).
This comment is hidden because it contains spoiler information about the solution