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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 one is good
The test consists huge figures so it takes a lot of time
kata name says "count odd number below n" and below 1 or 0 there are no odd number greater than 0, i have tried your solution and could't reproduce the test fail.
I get a test fail, due to the possibility of getting n = 1 or perhaps 0. I couldn´t print it.