Min-heap MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 15, 2025

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1. : What is a Min-heap?



2. : Which operation in a Min-heap ensures that the heap property is maintained?



3. : What is the time complexity of finding the minimum element in a Min-heap?



4. : In a Min-heap, which node has the smallest value?



5. : Which data structure is commonly used to implement a Min-heap?



6. : Which operation in a Min-heap removes and returns the minimum element?



7. : In a Min-heap with n elements, what is the height of the heap?



8. : Which operation in a Min-heap inserts a new element while maintaining the heap property?



9. : What is the array representation of a Min-heap?



10. : Which traversal method can be used to print all elements of a Min-heap in sorted order?



11. : What is the worst-case time complexity of inserting an element into a Min-heap with n elements?



12. : Which operation in a Min-heap swaps elements to maintain the heap property?



13. : Which operation in a Min-heap decreases the value of a node and adjusts the heap if necessary?



14. : Which traversal method of a Min-heap visits nodes level by level?



15. : In a Min-heap, which operation retrieves the minimum element without removing it?



16. : Which operation in a Min-heap ensures that the heap property is restored bottom-up?



17. : Which of the following is NOT true about Min-heaps?



18. : Which operation in a Min-heap removes and returns the minimum element, and then restructures the heap?



19. : In a Min-heap, what is the relationship between a parent node i and its children 2i+1 and 2i+2?



20. : Which operation in a Min-heap ensures that the heap property is restored top-down?



 

 

Data Structures MCQs

Basic Concepts

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  2. Complexity Analysis MCQs

Linear Data Structures MCQs

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  3. Stacks MCQs
  4. Queues MCQs

Non-Linear Data Structures MCQs

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  2. Heaps MCQs
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Hashing MCQs MCQs

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Sorting and Searching Algorithms MCQs 

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