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02027. Have we met before?

difficulty 1500·answer type: proof·✓Not solved

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Book: Green Book
Chapter: 2 · Brain Teasers
Section: 2.6 · The Pigeon Hole Principle
Pages: 37–38
Difficulty: 1500
Answer type: proof
Solved by: 0
Attempts: 0

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brain-teaser pigeonhole ramsey-theory classic

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QuantForces · problems from Xinfeng Zhou, A Practical Guide to Quantitative Finance Interviews