ISRO | ISRO CS 2020 | Question 2
Of the following sort algorithms, which has execution time that is least dependent on initial ordering of the input ?
(A) Insertion sort
(B) Quick sort
(C) Merge sort
(D) Selection sort
- Insertion Sort gives best case if initial input is already sorted.
- Quick Sort gives worst case if initial input is already sorted.
- Selection Sort gives least number of swaps if initial input is already sorted.
- Merge sort never depend on its initial order of input, does not matter what is input, it always takes O(n log n) time.
So, option (C) is correct.
Quiz of this Question
My Personal Notes arrow_drop_up
Please Login to comment...