Question

Which of the following sorting algorithms in its typical implementation gives best performance when applied on an array which is sorted, or almost sorted (at most
two elements are misplaced).
A. Quick Sort B. Heap Sort C. Merge Sort D. Insertion Sort

Answer 1

Answer:

Insertion sort takes linear time when input array is sorted or almost sorted (maximum 1 or 2 elements are misplaced). All other sorting algorithms mentioned above will take more than lienear time in their typical implementation.

Answer 2

Answer:

insertion sort

Explanation:

Insertion sort takes linear time when input array is sorted or almost sorted (maximum 1 or 2 elements are misplaced). All other sorting algorithms mentioned above will take more than lienear time in their typical implementation.