You are given a sorted array consisting of only integers where every element appears exactly twice, except for one element which appears exactly once. Find this single element that appears only once.
Write an efficient algorithm that searches for a value in an m x n matrix
You have given a rotated array sorted in ascending order. The array is rotated at some unknown pivot point. The array [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]. You are given a target value to search. If found in the array return its index, otherwise return -1
Suppose you have given an array sorted in ascending order. The array is rotated at some unknown pivot point. Following the example of a sorted rotated array