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MathNet 2014 Question 45

Math Olympiad Vault · MathNet 2014

Question 45

Mark 2014 points on a circle. Write a nonnegative real number on every segment joining two marked points. For every convex polygon whose vertices are among the marked points, the sum of the numbers on its sides is at most 1. Determine the largest possible sum of all the numbers.

Question illustration

Schematic circular order and a sample inscribed convex polygon; only 12 of the 2014 points are represented.