This means that the flow through the network is a legal flow after each round in the algorithm. We define the residual network to be the network with capacity and no flow. Notice that it can happen that a flow from to is allowed in the residual network, though disallowed in the original network: if and then .
This means that the flow through the network is a legal flow after each round in the algorithm We define the residual network to be the network with capacity and no flow. Notice that it can happen that a flow from to is allowed in the residual net.work, though disallowed in the original network: if and then .