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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.
but you want it to last longer :)
excellent use of a regex
#11b38/3qe:0z:vV
nice one got the same
timeit
How can you check the speed?
Well, I'm impressed of myself ;-)
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i started with a very similar solution! I then learned that "if arr:" is more pythonic because you can take advantage of the boolean nature of lists. I really like that!