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MathNet 2014 Question 60

Math Olympiad Vault · MathNet 2014

Question 60

There is a big crowd of boys and girls. Is it always possible to give them hats of $100$ colors (everybody gets one hat) such that if some boy is familiar with at least $2014$ girls then all these girls have hats of at least $2$ colors and the same for girls holds: if some girl is familiar with at least $2014$ boys then all these boys have hats of at least $2$ colors?