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I think the "search-for" number is a misunderstanding on your part. We are not looking for the number that is closest to the first. We are looking for the pair of numbers, out of all n choose 2 pairs, which are closest together.

So given (1, 5, 7) it would return (5, 7) (or (7, 5)) while (1, 5, 11) would return (1, 5). And you cannot assume that it is presented in increasing order.


In reply to Re (tilly) 4: (Golf) Nearest Neighbors by tilly
in thread (Golf) Nearest Neighbors by MeowChow

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