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Questions and Answers
Which sorting algorithm will take least time when all elements of input array are identical? Consider typical implementations of sorting algorithms.
Which sorting algorithm will take least time when all elements of input array are identical? Consider typical implementations of sorting algorithms.
Flashcards
Insertion Sort
Insertion Sort
A sorting algorithm that works by iterating through the array and placing each element in its correct sorted position compared to the elements before it.
Heap Sort
Heap Sort
A sorting algorithm where we build a heap data structure (a complete binary tree) and then repeatedly extract the maximum element from the heap, placing it in the correct position in the sorted array.
Selection Sort
Selection Sort
A sorting algorithm that repeatedly finds the minimum element in the unsorted portion of the array and swaps it with the first element of the unsorted portion.
Merge Sort
Merge Sort
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Already Sorted
Already Sorted
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Best Case
Best Case
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Worst Case
Worst Case
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Average Case
Average Case
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Efficient for Already Sorted
Efficient for Already Sorted
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Inefficient for Already Sorted
Inefficient for Already Sorted
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Study Notes
Sorting Algorithms and Identical Elements
- When all elements in an input array are identical, insertion sort performs best.
- This is because insertion sort typically has optimal performance when the input is already sorted.
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Description
This quiz explores the performance of sorting algorithms, particularly insertion sort, when all elements in an input array are identical. Understand how the characteristics of the input affect sorting efficiency and learn why insertion sort excels in this scenario.