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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.
Duplicate found: https://www.codewars.com/kata/59cabf6baeb28482b8000017
For Java perhaps remove the
finalmodifier of the parameter.That is just a hassle for some soutions.
There're already plenty of katas about collatz conjecture. Simply counting iterations is not a novel or interesting idea (and it may very well be a duplicate).
Edit: confirmed, duplicate of this kata.