Olym 10C. 게임 이론과 필승 전략
- 연습문제

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Example n. Title Here

A chess tournament took place between $2n+1$ players. Every player played every other player once, with no draws. In addition, each player had a numerical rating before the tournament began, with no two players having equal ratings. It turns out there were exactly $k$ games in which the lower-rated player beat the higher-rated player. Prove that there is some player who won no less than $n-\sqrt{2k}$ and no more than $n+\sqrt{2k}$ games.

BAMO 2014

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Example n. Title Here

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Example n. Title Here

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Example n. Title Here

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Example n. Title Here

Problem Here

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Solution Solution Here.