Java Interview Questions · interview question
In Java, which comparison about Union-Find and Disjoint Set is accurate?
Multiple choiceEasyjava-interview-2026interviewjavacomparison
Answer and explanation
Correct answer
B. It is much more efficient for repeated merge and connectivity checks than rebuilding components from scratch after each update.
Why
It is much more efficient for repeated merge and connectivity checks than rebuilding components from scratch after each update. This is the comparison that usually separates memorization from understanding.
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