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← Logic & PuzzlesIf a high-volume e-commerce site employs a randomized quicksort algorithm for daily sales transaction sorting, which consequence follows regarding execution?
A)Always finishes in linear time
B)Exhibits guaranteed stack overflow
C)Guarantees sorted order immediately
D)Expected O(n log n) runtime✓
💡 Explanation
Randomized quicksort utilizes random pivots to avoid worst-case scenarios, meaning that the expected runtime is O(n log n) because this random pivot selection reduces the likelihood of encountering a consistently bad pivot. Therefore, a more balanced average-case performance is achieved, rather than guaranteeing immediate sorted order or linear time.
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