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Solution: Single Element in a Sorted Array

Explore how to apply a modified binary search to identify the unique element in a sorted array where every other element appears twice. Understand the use of pointers and index adjustments to efficiently locate the single non-duplicate number with optimal time and constant space complexity.

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 ...