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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.
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Either the wording of the problem is flawed, or the testing batteries are. 4 pancakes (at 2 mins each) on a max-3 pan CANNOT take 3 (shouldn't even be possible to be an odd number, according to the description) minutes to produce 4 cooked pancakes. Whether 4, 5, or 6, you'd need to be running that griddle an additional 2 minutes (total 4) to finish the next 1-3 flapjacks.
Because 33, 45, and 95 are not prime numbers. That final combination of yours (1176, 1382976) should be the first working combination, so if it's not working then you need to examine your code.