Ben owes Glen a drink. Glen owes Rhen two drinks. Rhen owes Sven three drinks. Sven owes Ben four drinks.
To settle up, what is the minimum number of drinks that need to be bought by who for whom?
turn the drinks into 'currency' and realize Ben is owed 3 drinks/units while everyone else owes 1 unit/drink net!!!
a little easy for this site....
blackjack
flooble's webmaster puzzle