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      Question

      You are tasked with implementing a search feature for a large, constantly changing dataset where the order of elements doesn't matter, but fast lookups are crucial. Which data structure would be the most appropriate choice?

      A Sorted Array Correct Answer Incorrect Answer
      B Binary Search Tree Correct Answer Incorrect Answer
      C Hash Set/Map Correct Answer Incorrect Answer
      D Queue Correct Answer Incorrect Answer
      E Stack Correct Answer Incorrect Answer

      Solution

      Hash Set/Map: Offers average O(1) time complexity for lookups, insertions, and deletions, making it ideal for fast operations on dynamic datasets where order is not important.     Sorted Array: Fast lookups (O(log N)) but slow insertions/deletions (O(N)).     Binary Search Tree: O(log N) average for all operations, but can degrade to O(N) in worst case (unbalanced).     Queue/Stack: Not designed for efficient searching.

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