MathDB
2n participants in a 4 days tennis competition

Source: 2007 Cuba MO 1.3

September 15, 2024
combinatorics

Problem Statement

A tennis competition takes place over four days, the number of participants is 2n2n with n5n \ge 5. Each participant plays exactly once a day (a couple of participants may be more times). Prove that such competition can end with exactly one winner and exactly three players in second place and such that there are no players with four lost games,