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Solution: Single Element in a Sorted Array

Discover how to use modified binary search to find the single element in a sorted array where every other element appears twice. Learn to apply pointers and index logic to efficiently pinpoint the unique value within O(log n) time and constant space.

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 ...