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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.
At first, I also performed the solution with a loop, but then I thought that it was known in advance how many times the ball would fly near the window, which means there must be a mathematical formula.
Exactly something I was expecting while solving this Kata with boring loop
Gotta get my maths skills up I guess