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Algorithms | Sorting | Question 23

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 either the 7 or the 9.

(B)

The pivot could be the 7, but it is not the 9

(C)

The pivot is not the 7, but it could be the 9

(D)

Neither the 7 nor the 9 is the pivot.

Answer

Please comment below if you find anything wrong in the above post
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