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A little method for maximum flow mapping of network flow minimum cost

Source: Internet
Author: User
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Situation of the graph without direction

Add the edge of the time directly add two edges can, because this dinic algorithm can be sentenced to heavy edge
POJ 3469 Code

When the minimum flow rate is determined

Add two source points and meeting points
First two source points connected, meeting point connected, capacity for determined traffic
POJ 2135 Code
POJ 3686 Code

Multi-source multi-sinks

Add a source point and a meeting point
Connect the source point and each previous capacity to 1
Connect the meeting point and each previous capacity to 1
POJ 3281 Code
POJ 2195 Code

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A little method for maximum flow mapping of network flow minimum cost

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Related Keywords:
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