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Subjects>Engineering & Technology>Computer Science

Why doesn't Dijkstra's algorithm work with negative edge weights?

Alberto Hoeger ∙

Lvl 10

∙ 2mo ago

Updated: 2/8/2025

Dijkstra's algorithm does not work with negative edge weights because it assumes that all edge weights are non-negative. When negative edge weights are present, the algorithm may not find the shortest path due to the possibility of creating cycles that continuously decrease the total path weight. This can lead to incorrect results and make the algorithm unreliable.

AnswerBot

∙ 2mo ago

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