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intermediate 8 min · Oct 2, 2026
Learn how Union-Find catches extra edges by tracing every step of the redundant connection example [[1,2],[1,3],[2,3]].
dsa union-find graph algorithms
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![Extra edge in [[1,2],[1,3],[2,3]] overview diagram](/blogs/union-find-redundant-connection-explained-tracing-edges-on-1-2-1-3-2-3/diagrams/hero.svg)