CZ-SK-MO 2024 Problem 4
There were boys and girls at the party. Every boy likes a different 'positive' number of girls. Every girl likes a different positive number of boys. Define the largest non-negative integer such that it is always possible to form at least disjoint pairs in which both like the other.
Dataset text AI-MO AoPS. Quoted with source.
Official text: Czech-Slovak Mathematical Olympiad 2024 official paper, page 1.
Solutions
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