Question 1

What are the main advantages of a Hash Table over a BST?

Accepted Answer

The main advantage of a Hash Table over a BST is its speed. Hash Tables provide O(1) average time complexity for lookups, insertions, and deletions, while a balanced BST provides O(log n) for the same operations.

Question 2

When would you prefer a BST over a Hash Table?

Accepted Answer

A BST is preferred over a Hash Table when you need to maintain the elements in a sorted order. BSTs naturally keep elements sorted, which allows for efficient range queries and ordered traversal, operations that are not efficiently supported by Hash Tables.

BST vs. Hash Table Interview Questions

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