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.
In other words, it means
[]should return0, since there is nothing to sum against.This comment is hidden because it contains spoiler information about the solution
Not an issue, this is the default setting across all languages
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution