Maurice Tutor

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

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 17 Sep 2017 My Price 5.00

sequence of n numbers

Consider linear search again (see Exercise 2.1-3). How many elements of the input sequence need to be checked on the average, assuming that the element being searched for is equally likely to be any element in the array? How about in the worst case? What are the average-case and worst-case running times of linear search in Θ-notation? Justify your answers.

Exercises 2.1-3

Consider the searching problem:

• Input: A sequence of n numbers A = ?a1, a2, . . . , an ? and a value v.

• Output: An index i such that v = A[i] or the special value NIL if v does not appear in A.

Write pseudo code for linear search, which scans through the sequence, looking for v. Using a loop invariant, prove that your algorithm is correct. Make sure that your loop invariant fulfills the three necessary properties.

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Maurice Tutor
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Status NEW Posted 17 Sep 2017 07:09 AM My Price 5.00

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