[Latest] How old is Quicksort now?

Living Person

Quicksort
is

As of April 16, 2026

67 years old
approximately!

Date of Birth

(1959 ) is

Pig
Year

* Calculated from Wikipedia data.
Accuracy is not guaranteed.

approx. 900.8 years old

approx. 279.7 years old

approx. 109.5 years old

approx. 35.8 years old

approx. 5.7 years old

approx. 2.3 years old

* Calculated based on each planet's orbital period.

Quicksort
Animated visualization of the quicksort algorithm. The horizontal lines are pivot values.
Class	Sorting algorithm
Worst-case performance	$O(n^{2})$ (rarely)
Best-case performance	$O(n\log n)$ (simple partition) or $O(n)$ (three-way partition and equal keys)
Average performance	$O(n\log n)$
Worst-case space complexity	$O(n)$ auxiliary (naive) $O(\log n)$ auxiliary (Hoare 1962)
Optimal	No