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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.
How could it not be?
This still happens.
Tested with timeit 100000 iterations:
using a loop = 0.009008507011458278,
using all(list comprehension) = 0.04262416099663824,
using any(list comprehension) = 0.04675498099823017.
This comment is hidden because it contains spoiler information about the solution
4 - 1 = 3
5 - 2 = 3
6 - 3 = 3
3 * 3 = 9
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