Java Interview Questions · interview question
When should a Java developer choose Union-Find and Disjoint Set deliberately?
Multiple choiceMediumjava-interview-2026interviewjavause
Answer and explanation
Correct answer
D. Use union-find for connectivity under unions, cycle detection in undirected graphs, and grouping problems.
Why
Use union-find for connectivity under unions, cycle detection in undirected graphs, and grouping problems. Interviewers often ask this to see whether you can connect the concept to real design decisions.
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