Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
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Category > Computer Science Posted 15 Sep 2017 My Price 5.00

Divide-and-Conquer

Q2 Java : Divide-and-Conquer
A 3-way merge-sort is an algorithm to sort an array A, described as follows:
Divide: divide the array into three (about) equal sized subarrays A[p..q1], A[q1+1..q2] and
A[q2+1..r]
Conquer: Recursively sort these three subarrays.
Combine: Call a procedure 3-way-merge(A, p, q1, q2, r) to merge three sorted subarrays
to a sorted array
(a)(8 points) Please write a recursive pseudocode for this algorithm. Assume the 3-way-merge
procedure is available to be used (you can call it directly).
3-way-merge-sort(A, p, r) // A: the input array, p: starting index,
// r: ending index.
{
}

b) Please write down the recurrence equation for this 3-way-merge-sort algorithm.

Answers

Maurice Tutor
(5)
Status NEW Posted 15 Sep 2017 02:09 PM My Price 5.00

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