Sorting Quick, Merge & Radix Divide-and-conquer Technique subproblem 2 of size n/2 subproblem 1 of size n/2 a solution to subproblem 1 a solution to.

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Sorting Quick, Merge & Radix

Divide-and-conquer Technique subproblem 2 of size n/2 subproblem 1 of size n/2 a solution to subproblem 1 a solution to the original problem a solution to subproblem 2 a problem of size n

Best Case If we are lucky, Partition splits the array evenly

Worst Case What is the worst case? One side of the parition has only one element

Worst Case (2)

Merge Sort

Using Divide and Conquer: Mergesort Mergesort Strategy Sorted Merge Sorted Sort recursively by Mergesort first last  (first  last)  2 

Algorithm

Radix Sort

Least-significant-digit-first Example: 275, 087, 426, 061, 509, 170, 677, 503