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 comment is hidden because it contains spoiler information about the solution
Thanks! I have modified it to work, assuming all objects in the list implement str. Initially I used the none to handle the edge case of the last element (since we want to compare an element to both its neighbours) but now I am just abusing negative indices to handle it.