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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.
This is O(n) problem and you made it into O(n^2)
The more comments the better. Thanks!
Wow, nice to see the reference to Uncle Bob, I like this guy too :) Totally agree.
According to Clean Code Robert.C Martin, you can avoid comments when the code is self-explanatory.