Suppose you are given an array A[1 . . . n] of sorted integers that has been circularly shifted k positions to the right. For example, [35, 42, 5, 15, 27, 29] is a sorted array that has been circularly shifted k = 2 positions, while [27, 29, 35, 42, 5, 15] has been shifted k = 4 positions. We can obviously find the largest element in A in O(n) time. Describe and analyze an O(lg n) algorithm for finding the largest element in A