While Quick Sort does have the worst case runtime of O(n^2), a proper implementation defeats this behavior almost completely. Rather than randomize the data, i

While Quick Sort does have the worst case runtime of O(n^2), a proper implementation defeats this behavior almost completely. Rather than randomize the data, it would be better to randomize the algorithm (choose a random pivot). Not only is the expected runtime O(n log n) but the probability of quick sort taking even twice as long (2 * n log n) is exponentially small.