Q:During each iteration of Quick Sort algorithm, the first element of array is selected as a pivot. The algorithm for Quick Sort is given below. Modify it in such a way that last element of array should be selected as a pivot at each iteration. Also explain the advantages.

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Q:During each iteration of Quick Sort algorithm, the first element of array is selected as a pivot. The algorithm for Quick Sort is given below. Modify it in such a way that last element of array should be selected as a pivot at each iteration. Also explain the advantages.

Quick-Sort (A, left, right)
ifleft è right
return
else
middle
Partition (A, left, right)
Quick-Sort (A, left, middle-1 )
Quick-Sort (A, middle+1, right)
end if
Partition (A, left, right)
x - A[left]
left
for j
if A[j] < x then
left+1
to right
i - i + 1
swap (A[i], A[j])
end if
end for j
swap (A[i], A[left])
return i
Transcribed Image Text:Quick-Sort (A, left, right) ifleft è right return else middle Partition (A, left, right) Quick-Sort (A, left, middle-1 ) Quick-Sort (A, middle+1, right) end if Partition (A, left, right) x - A[left] left for j if A[j] < x then left+1 to right i - i + 1 swap (A[i], A[j]) end if end for j swap (A[i], A[left]) return i
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