quick sort

Question

If we use quicksort algorithm to sort the elements: $16, 13, 14, 12, 21, 16, 23$ and $15$ in ascending order, what is the output after the first pass of quicksort? (Assume pivot element is beginning of an array)

Comments

(15,13,14,12,16) ->16<- (23,21)
Do you want a an illustrative answer?

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You might find this link interesting
https://visualgo.net/sorting

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can u tell the algo.. ..when 1st element is pivot

Answer 1

15 13 14 12 16 -- 16 -- 23 21