Push–relabel maximum flow algorithm: Difference between revisions

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Relabel-to-Front Algorithm: rtf is different from fifo
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Executing these two functions in any order, so long as there remains any active vertices results in termination of the algorithm in a maximum flow. The running time for these algorithms when not observing any order to the Push and Relabel operations is <math>O(V^2 E)</math> (argument omitted). The bottleneck is the number of non-saturating pushes.
 
==Relabel-to-Front Algorithm (FIFO heuristic)==
 
The Relabel-to-Front algorithm is a variant of the Push-Relabel algorithm that improves the