Limitless football management

let it be"n" number of matches, it'll always be the matches - 1

Its just the number of teams n-1

according to the given hint 2^32 teams are competing in a football match so initially there will be 2^31 matches to select 2^31 teams, after that there will be 2^30 matches and so on. So the total number of matches = 2^31+2^30+2^29+2^28...2^0. So there are 32 terms to be added with first term as 2^31 and the common ratio as 1/2. Applying the formula to find the sum of terms of an G.P. we get the answer as 2^32-1=4294967295.