# Data Structure Questions and Answers-Binary Search Iterative

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## Data Structure Questions and Answers-Binary Search Iterative

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 Question 11 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Given an array arr = {45, 77, 89, 90, 94, 99, 100} and key = 100; What are the mid values(corresponding array elements) generated in the first and second iterations?
 A 90 and 99 B 90 and 100 C 89 and 94 D 94 and 99
Question 11 Explanation:
Trace the input with the binary search iterative code.

 Question 12 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
What is the time complexity of binary search with iteration?
 A O(nlogn) B O(logn) C O(n) D O(n2)
Question 12 Explanation:
T(n) = T(n/2) + theta(1)

Using the divide and conquer master theorem, we get the time complexity as O(logn).

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