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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.
May be problems with Java solutions should be eliminated by using BigDecimal both in tests and in solutions?
Brevity is the soul of wit!