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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.
Sometimes you think that solution must be tricky and then I came across this...
Well done!
I could reduce my solution to this.
Very instructive solution. I, as a C dev, have no OOP thinking like "Arrays.stream(integers).limit(3).map..." but had the same approach to problem.