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Which algorithm sorts elements by maintaining a sorted subarray and inserting new elements in the correct position?
A. Insertion Sort
B. Selection Sort
C. Quick Sort
D. Bubble Sort
Answer: Insertion Sort
Which search algorithm has a time complexity of O(√n)?
A. Jump Search
B. Binary Search
C. Linear Search
D. Exponential Search
Answer: Jump Search
Which sorting algorithm is most efficient for a nearly sorted array?
A. Insertion Sort
B. Quick Sort
C. Merge Sort
D. Bubble Sort
Answer: Insertion Sort
What is the worst-case time complexity of Insertion Sort?
A. O(n^2)
B. O(n)
C. O(log n)
D. O(1)
Answer: O(n^2)
Which sorting algorithm has a time complexity of O(n log n) in all cases?
A. Merge Sort
B. Quick Sort
C. Insertion Sort
D. Selection Sort
Answer: Merge Sort
Which algorithm is better suited for small datasets due to its simplicity?
A. Insertion Sort
B. Quick Sort
C. Merge Sort
D. Heap Sort
Answer: Insertion Sort
Which of the following algorithms is NOT stable?
A. Heap Sort
B. Merge Sort
C. Bubble Sort
D. Insertion Sort
Answer: Heap Sort
What is the time complexity of Quick Sort in the average case?
A. O(n log n)
B. O(n)
C. O(log n)
D. O(n^2)
Answer: O(n log n)
Which sorting algorithm uses divide-and-conquer and sorts smaller parts of the array before merging them?
A. Merge Sort
B. Quick Sort
C. Selection Sort
D. Heap Sort
Answer: Merge Sort