Question: Quicksort ( A , p , r ) 1 . if p < r 2 . q = Partition ( A , p , r

Quicksort(A, p, r)
1. if p < r
2. q = Partition(A, p, r)
3. Quicksort(A, p, q-1)
4. Quicksort(A, q+1, r)
Partition(A, p, r)
1. x = A[r]
2. i = p-1
3. for j = p to r-1
4. if A[j]<= x
5. i = i+1
6. A[i] with A[j]
7. exchnge A[i+1] with A[r]
8. return i+1

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