
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
Input: L = a1, a2, ... , an list of distinct integers; x integer
Output: p integer
i = 1;
j = n;
found = F;
p = 0;
while i ≤ j and found = F
m = ⌊i+j2⌋;
if am = x then found = T and p = m
else if am < x then i = m + 1
else j = m - 1;
return p;
When performing Algorithm Binary Search with input L = 1,3,5,7,9,11,13 and x = 9, how many times is x compared to an element ai of the list L?
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