Topic 02a Linear Search SOLUTIONS.pdf - Topic 2a Linear Search Solutions Copyright(c 2017 Daniel D Suthers All rights reserved These solution notes may

Topic 02a Linear Search SOLUTIONS.pdf - Topic 2a Linear...

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Topic 2a, Linear Search: Solutions Copyright (c) 2017 Daniel D. Suthers. All rights reserved. These solution notes may only be used by students in ICS 311 Fall 2018 at the University of Hawaii. Searching Problem Input: A sequence of n numbers A = a 1 , a 2 , .... a n (in no particular order) 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 . (2 pts) (a) Write pseudocode for linearSearch(A,n,v) , an algorithm that scans through a sequence represented as an array A of length n looking for v , and provides the desired output (index i or NIL). Use Java style 0-based indexing and A[i] to access elements. Number the lines for reference, as started below. linearSearch(A,n,v) 1 for i = 0 to n - 1 2 if A[i] == v 3 return i 4 return NIL (3 pts) (b) Let p be the number of array positions checked. ( p will be replaced with a function of n: p = f(n). For example, when the element is not present, p = n. ) Let c 1 be the cost of executing line 1, c 2 the cost of executing line 2, etc. As was done in the lecture notes:
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  • Fall '08
  • Barjaktarovic,M

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