Search⌘ K
AI Features

Solution: Single Element in a Sorted Array

Explore how to apply a modified binary search technique to identify the single element in a sorted array where every other element appears twice. Understand the trick of pairing indices and how to adjust pointers to locate the unique element efficiently. This lesson guides you through a step-by-step approach to solve this problem in logarithmic time.

Statement

You are given a sorted array of integers, nums, where all integers appear twice except for one. Your task is to find and return the single integer that appears only once.

The solution should have a time complexity of O(logn)O(\log n) or better and a space complexity of O(1)O(1).

Constraints:

  • 11 \leq ...