Quick sort MCQsBy: Prof. Dr. Fazal Rehman | Last updated: April 16, 2025 10 Score: 0 Attempted: 0/10 Subscribe 1. What is the primary purpose of Quick Sort? (A) To search for an element (B) To sort an array (C) To merge two arrays (D) To partition data 2. What is the average-case time complexity of Quick Sort? (A) O(n) (B) O(n log n) (C) O(n²) (D) O(log n) 3. Which of the following best describes the Quick Sort algorithm? (A) It repeatedly swaps adjacent elements. (B) It selects a pivot and partitions the array. (C) It sorts the array in place without additional memory. (D) It merges sorted arrays. 4. What is the worst-case time complexity of Quick Sort? (A) O(n) (B) O(n log n) (C) O(n²) (D) O(log n) 5. Which of the following is true about the stability of Quick Sort? (A) It is a stable sorting algorithm. (B) It is not a stable sorting algorithm. (C) It can only sort numerical data. (D) It requires additional memory for stability. 6. What is the space complexity of Quick Sort? (A) O(1) (B) O(n) (C) O(n log n) (D) O(n²) 7. What is the main advantage of Quick Sort over other sorting algorithms? (A) It is always faster than Merge Sort. (B) It requires less memory. (C) It can sort linked lists efficiently. (D) It is a stable sorting algorithm. 8. Which of the following is a common method for choosing a pivot in Quick Sort? (A) First element (B) Last element (C) Median of three (D) Random element 9. In Quick Sort, what happens if the pivot is the smallest or largest element? (A) The algorithm will be very efficient. (B) The algorithm will perform poorly, resulting in O(n²) complexity. (C) The array will remain unchanged. (D) The algorithm will terminate immediately. 10. How does Quick Sort compare to Merge Sort in terms of worst-case performance? (A) Quick Sort has worse performance. (B) Merge Sort has worse performance. (C) Both have the same performance. (D) It depends on the implementation. Data Structures MCQs Basic Concepts Introduction to Data Structures Abstract Data Types (ADT) MCQs Complexity Analysis MCQs Time complexity MCQs Space complexity MCQs Big O, Big Ω, Big Θ notations MCQs Linear Data Structures MCQs Arrays MCQs One-dimensional arrays MCQs Multi-dimensional arrays MCQs Operations: traversal, insertion, deletion MCQs Linked Lists MCQs Singly linked list MCQs Doubly linked list MCQs Circular linked list MCQs Stacks MCQs Stack operations (push, pop, peek) MCQs Applications of stacks (expression evaluation, recursion) MCQs Queues MCQs Queue operations (enqueue, dequeue, front, rear) MCQs Types: Simple queue, circular queue, priority queue, deque MCQs Non-Linear Data Structures MCQs Trees MCQs Binary trees MCQs Binary Search Trees (BST) MCQs AVL Trees MCQs B-trees and B+ trees MCQs Tree traversal methods (in-order, pre-order, post-order) MCQs Heaps MCQs Min-heap MCQs Max-heap MCQs Heap operations (insertion, deletion, heapify) MCQs Applications of heaps (priority queues, heap sort) MCQs Graphs MCQs Graph representation (adjacency matrix, adjacency list) MCQs Graph traversal algorithms (DFS, BFS) MCQs Shortest path algorithms (Dijkstra’s, Bellman-Ford) MCQs Minimum Spanning Tree (Kruskal’s, Prim’s) MCQs Hashing MCQs MCQs Hash Tables Hash functions MCQs Collision resolution techniques (chaining, open addressing) MCQs Applications of hashing MCQs Sorting and Searching Algorithms MCQs Sorting Algorithms MCQs Bubble sort MCQs Selection sort MCQs Insertion sort MCQs Merge sort MCQs Quick sort MCQs Heap sort MCQs Searching Algorithms MCQs Linear search MCQs Binary search MCQs Interpolation search MCQs Miscellaneous Memory Management in data structures MCQs Dynamic memory allocation MCQs Garbage collection MCQs String Manipulation Algorithms MCQs Pattern matching (KMP, Rabin-Karp) MCQs String hashing MCQs Data Structures MCQs 1 Data Structures MCQs 2 Data Structures MCQs 3 Data Structures MCQs 4 Data Structures MCQs 5 Stacks Solved MCQs Queues MCQs pointer mcqs Array MCQs Related Posts:write a c program to sort a 1d array using pointer by applying bubble sort techniqueSelection tools (Marquee, Lasso, Magic Wand, Quick Selection) MCQs - Adobe PhotoshopInterface overview MCQs including (Ribbons, Quick Access Toolbar, Backstage View) - MS WordCustomizing the Ribbon and Quick Access Toolbar MCQs - MS WordMerge sort MCQsApplications of heaps (priority queues, heap sort) MCQs
