Revision history of "2013 OIM Problems/Problem 1"

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  • (cur | prev) 14:27, 14 December 2023Tomasdiaz (talk | contribs). . (855 bytes) (+855). . (Created page with "== Problem == A set <math>S</math> of positive integers is called "''canalero''" if for any three numbers <math>a, b, c \in S</math>, all different, it holds that <math>a</mat...")