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Fixed both
Updated. Thanks.
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Hear, hear! Not using the Oxford Comma ranks with asinine behavior such as not using a turn signal or standing on an escalator. An excellent example of the problem with omitting the Oxford Comma can be found in a line from an actual Times of London story: "Highlights of his global tour include encounters with Nelson Mandela, an 800-year-old demigod and a dildo collector." Without the comma after "demigod", the sentence can certainly take on an unintended meaning. The Oxford Comma never causes any harm, but can often offer clarity. LONG LIVE THE OXFORD COMMA!!!!!
ips_between
Because 41 is greater than 1, so you normally use plural.
Why 41 minute[s], but not 41 minute[]?
Oxford comma, anyone?
You can look at other's solutions to see their approaches ;-)
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In python specifically (don't know about other languages), the predefined test cases are all of lengths divisible by three, which makes for very clean encoding and decoding. Among the random cases, however, those that violate this property are inevitably encountered. It would be helpful if some of the predefined/sample cases had this property so that it would be easier to debug an issue related to this.
Python translation awaiting approval at http://www.codewars.com/kumite/5ab2c20e9186c6db87000019.