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.
Hello, your description garantees Non-empty input strings and one of your edge cases inputs an empty input string... Might want to check that :D
This comment is hidden because it contains spoiler information about the solution
Honestly, your solution is so elegant, I feel stupid. Great Job.