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Problem: Single Element in a Sorted Array

Medium
30 min
Explore how to locate the single non-duplicate element in a sorted array by applying a modified binary search. Understand problem constraints and optimize the solution with O(log n) time complexity and constant space, enhancing your skills in advanced search techniques.

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(log⁡n)O(\log n) or better and a space complexity of O(1)O(1).

Constraints:

  • 1≤1 \leq nums.length ≤103\leq 10^3

  • 0≤0 \leq nums[i] ≤103\leq 10^3

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Problem
Ask
Submissions
Home
Courses
Course Homepage

Problem: Single Element in a Sorted Array

Medium
30 min
Explore how to locate the single non-duplicate element in a sorted array by applying a modified binary search. Understand problem constraints and optimize the solution with O(log n) time complexity and constant space, enhancing your skills in advanced search techniques.

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(log⁡n)O(\log n) or better and a space complexity of O(1)O(1).

Constraints:

  • 1≤1 \leq nums.length ≤103\leq 10^3

  • 0≤0 \leq nums[i] ≤103\leq 10^3

Similar Problems
Find First and Last Position of Element in Sorted Array
Binary Search
Search in Rotated Sorted Array
First Bad Version
Find K Closest Elements
Split Array Largest Sum
The K Weakest Rows in a Matrix
Maximum Value at a Given Index in a Bounded Array
Search in Rotated Sorted Array II
Count Pairs Whose Sum is Less than Target