Application
	l When residual flow i, seek augmenting path in a sample of mrv/ic edges.  Time O(mrv/ic). l Sum over all i from v down to 1 l Total O(mrv (log v)/c) since S1/i=O(log v) l Here, e can be any constant < 1 (say ½) l So r=O(log n) l Overall  runtime O*(mv/c)