soccer tournament
Source: imar test 2006
April 21, 2007
combinatorics proposedcombinatorics
Problem Statement
A number of soccer teams play a full tournament, each team meeting (once) each other. Points are awarded: for a victory, for a tie and for a loss. At the end, each team has won half of its points against the teams placed last (including each of these teams, who won half of its points against the other ).
Find all possible values for and , supported with examples of such tournaments.