Question 2 (25 marks) The following code is an iterative implementation of binary search. 1 // C program to implement iterative Binary Search 2 #include 41/1 A iterative binary search function. It returns 5 // the index of x in given array arr[1..r] if found, 611 and -1 if not 7 int binary Search (int arr [], int i, int r, int x) { while (1