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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.
The list is pretty easy to find, so i assume its not clever, its cheating.
Why bother training, if u don't want to write algorithms?
as it is assured, that the input contains only letters, there is no need for low-bound comparison. You can leave only <=90, thus reducing comparison operations