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Beginning Java Data Structures and Algorithms
book

Beginning Java Data Structures and Algorithms

by James Cutajar
July 2018
Beginner
202 pages
5h 4m
English
Packt Publishing
Content preview from Beginning Java Data Structures and Algorithms

Implementing Merge Sort

We need to complete the pseudocode for a merge sort algorithm.

Keeping in mind that the merge sort's recursive part is very similar to the quick sort algorithm we saw in the preceding section, complete the pseudocode shown in the following code as follows:

mergeSort(array, start, end)  if(_____________)    midPoint = _________    mergeSort(array, _____, _____)    mergeSort(array, _____, _____)    merge(array, start, midPoint, end)  
Snippet 2.10: Recursive merge sort pseudocode exercise

The pseudocode for merge sort can be completed as follows:

mergeSort(array, start, end)  if(start < end)    midPoint = (end - start) / 2 + start    mergeSort(array, start, midPoint)    mergeSort(array, midPoint + 1, start) merge(array, start, midPoint, end) ...
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Publisher Resources

ISBN: 9781789537178