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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.
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i hear people say you don't need math to be a programmer. LIES! yes, you do need math to become a good programmer. performance is important.
Today I will use variable name semantics
clueless
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Because most people don't think about perfomance aspect of their algorithm, they just rush to pass the test, I think there should be more katas with execution time test.
I'm so satisfied that you used equation, with math it keeps O(1) notation, so we can calculate big numbers without suffering perfomance