L = [20, 9, 25, 41, 3, 4, 34, 6, 23]1.Which of the following is the correct ordering for L after a single in-place run through of `quicksort` (just before the recursive call is made), using the final element as pivot ?

If a quicksort implementation uses the first element in each subproblem as the pivot, which of the following scenarios results in the worst-case runtime?1 PointGrading comment:Choice 1 of 4:The input list is already sorted but in reverseChoice 2 of 4:The input list is already sortedChoice 3 of 4:The input list is randomly shuffledChoice 4 of 4:The input list contains more than 2000 elements

When sorting the following array in ascending order with quick sort:16 6 14 12 8 18 4 20 10if choosing the 4th element (i.e. 8) as the pivot, which of the following choices represents the array at one of the middle steps when partitioning the array?

Suppose we are sorting an array of eight integers using quicksort, and we have just finished the first partitioning with the array looking like this: 2  5  1  7  9  12  11  10 .Which statement is correct?a.The pivot could be the 7, but it is not the 9b.The pivot is not the 7, but it could be the 9c. Neither the 7 nor the 9 is the pivot.d.The pivot could be either the 7 or the 9.

Which of the following is NOT a step in the Quick Sort algorithm?

Apply Quick sort on a given sequence 7 11 14 6 9 4 3 12. What is the sequence after first phase, pivot is first element? a. 7 6 14 11 9 4 3 12 b. 7 6 4 3 9 14 11 12 c. 6 3 4 7 9 14 11 12 d. 6 4 3 7 11 9 14 12