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2 cards from this section. Quick, good the night before a test.
What is the purpose of a pivot in the Quicksort algorithm?
Think about how partitioning works.
Explain what partitioning means in the context of Quicksort.
Refer to how elements are grouped around the pivot.
What is the average time complexity of the Quicksort algorithm?
Consider how often the partitions halve the array.
True or False: Quicksort is a stable sorting algorithm.
What does 'stable' mean in sorting contexts?
Given the array [60, 20, 90, 10, 50], implement a Quicksort function that sorts it in ascending order and explain each step of the recursive process.
Track how the pivot influences the partitioning process at each recursive step.
Create a scenario showing how Quicksort can lead to inefficient sorting. Use specific examples of pivot selection that could lead to worst-case performance.
Visualize the consequences of poor pivot choices over several recursive layers.
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