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<p>that the amount of flow into a node equals the amount of flow out of it, unless it is a <b>source</b>, which has only outgoing flow, or <b>sink</b>, which has only incoming flow. A flow network can be used to model traffic in a computer network, circulation with demands, fluids in pipes, currents in an electrical circuit, or anything similar in which something travels through a network of nodes. As such, efficient algorithms for solving network flows can also be applied to solve problems that can be reduced to a flow network, including survey</p><p>
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