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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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Great
This is insightful.
smart!
Approved
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python new test framework is required. updated in this fork
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Input range needs to be specified. (Because apparently the input only goes up to
500, which makes this kata extremely easy)Instructions mention it should return "Invalid date" but the tests are testing for "Invalid date!" (in those cases)
The approximation formula could use extra parentheses, to reduce ambiguity.
Currently, it says "π * (3/2(a+b) - sqrt(ab))"
Perhaps it should say "π * ((3/2)(a+b) - sqrt(ab))"
Just to be clear that it isn't 3/(2(a+b))
C Translation
Python, possibly other languages: tests miss sanity checks on values returned by user solution and crash badly when an unexpected value (not a pattern, or not a valid pattern) is returned.
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Updated to Node v14
JS: No random test
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