TUYMAADA 1999 Problem 3
What maximum number of elements can be selected from the set so that no sum of any three selected numbers is equal to a selected number?
Proposed by A. Golovanov
Dataset text AI-MO AoPS. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
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