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Python Interview Questions · interview question

When should a Python developer choose Union-Find / Disjoint Set deliberately?

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Answer and explanation

Correct answer

D. Use union-find for connectivity, cycle detection in undirected graphs, and grouping problems with many merge operations.

Why

Use union-find for connectivity, cycle detection in undirected graphs, and grouping problems with many merge operations. Interviewers often ask this to see whether you can connect the concept to real design decisions.

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