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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.
Must have been something else. After waiting about fifteen minutes and resubmitting the same solution, it no longer times out. Top solution in JS finished in ~7 seconds this time.
I attempted the kata in javascript.
I think this is maybe already an issue. My initial brute force solution passes most tests but was timing out on the large number tests so I surrendered after struggling to find another way. Tried a few of the top solutions and they all also time out and fail on the large number tests. I'm new at this though so I'm unsure the exact issue.