Difference between revisions of "1991 OIM Problems/Problem 7"
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Latest revision as of 13:45, 13 December 2023
Problem
Each vertex of a cube is assigned the value of +1 or -1, and each face is assigned the product of the values assigned to each vertex. What values can the sum of the 14 numbers thus obtained take?
~translated into English by Tomas Diaz. ~orders@tomasdiaz.com
Solution
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