Problem 2773. Find the distance between runs

Guillaume

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A vector of monotonically increasing integers may contain several runs of consecutive numbers. Find out the distance between the end of runs of at least 4 consecutive numbers and the beginning of the next run of at least 4 consecutive numbers. E.g:

v = [1,2,5,6,7,8,9,20,21,22,30,31,32,33,34,35,40,41,42,43,44];

has three runs of at least 4 numbers, [5 6 7 8 9], [30,31,32,33,34,35] and [40,41,42,43,44]. So,

d = [30-9, 40-35] = [21 5]

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Last Solution submitted on Dec 27, 2025

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Mattias on 3 Jan 2015

Nice challenging problem! The fun thing is that all solutions look very different and are also very hard to understand

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