Flow Algorithms
l Push-relabel [GT]:
» push “excess” around graph till it’s gone
» max-flow in O*(mn) (note: O* hides logs)
recent O*(m3/2) [GR]
» min-cut in O*(mn2) --- “harder” than flow
l Pipelining [HO]:
» save push/relabel data between flows
» min-cut in O*(mn) --- “as easy” as flow