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Bellman–Ford algorithm
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== Finding negative cycles == When the algorithm is used to find shortest paths, the existence of negative cycles is a problem, preventing the algorithm from finding a correct answer. However, since it terminates upon finding a negative cycle, the Bellman–Ford algorithm can be used for applications in which this is the target to be sought – for example in [[Minimum-cost flow problem|cycle-cancelling]] techniques in [[Flow network|network flow]] analysis.<ref name="Bang" />
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