InterviewDigestOA2026-08-11
Hybrid Merge Sort worst-case complexity
AI-Expanded — inferred from the question title, not from the original candidate report
Implement a hybrid merge sort algorithm that switches to insertion sort once sub-arrays reach a size threshold of $k$. Analyze the impact of this threshold on the algorithm's worst-case time complexity and determine the optimal value of $k$ to minimize the total number of operations.
Context & Summary
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