Example: Medley Relay Team
- Supply Nodes 1, 2, 3 and 4 for John, Paul, George and Ringo
- Each has a supply of one swimmer, so bi = 1
- Demand Nodes 5, 6, 7 and 8 for Freestyle, Butterfly,
Backstroke and Breaststroke
- Each even needs a swimmer, so bi = -1 for i=6,7,8,9
- Arcs from each supply node to each demand node
- cij = swimmer i’s time in event j
- uij = 1, only one swimmer can be in any event
- lij = 0