Java Interview Questions · interview question
In Java, which comparison about Top-K with a Heap is accurate?
Multiple choiceEasyjava-interview-2026interviewjavacomparison
Answer and explanation
Correct answer
D. Top-k with a heap is more space-aware than sorting the full input when only a small subset is needed.
Why
Top-k with a heap is more space-aware than sorting the full input when only a small subset is needed. This is the comparison that usually separates memorization from understanding.
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