Question 2 Given a sorted array A of n numbers and an additional number x , give an algorithm that checks if there is i so that ( A i ) 2 x Example Say that A 6 , 12 , 13 , 16 , 20 , 25 , 27 and x 400 Then the answer is yes as 20 2 400 If x 49 the answer is no since 7 6 A Hint There is a very fast algorithm for this task

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Question: Question 2: Given a sorted array A of n numbers and an additional number x , give an algorithm that checks if there is i

Question 2: Given a sorted array A of n numbers and an additional number x , give an algorithm that checks if there is i so that ( A [ i ])² = x Example: Say that A = < 6 , 12 , 13 , 16 , 20 , 25 , 27 > and x = 400. Then the answer is yes as 20² = 400. If x = 49 the answer is no since 7 6 A . Hint: There is a very fast algorithm for this task.

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