540. Single Element in a Sorted Array LeetCode Solution | Easy Approach

Minimum Cost to Merge Stones

Single Element in a Sorted Array You are given a sorted array consisting of only integers where every element appears exactly twice, except for one element which appears exactly once.

Return the single element that appears only once.

Your solution must run in O(log n) time and O(1) space.

Example 1:

Input: nums = [1,1,2,3,3,4,4,8,8]
Output: 2

Example 2:

Input: nums = [3,3,7,7,10,11,11]
Output: 10


  • 1 <= nums.length <= 105
  • 0 <= nums[i] <= 105

Single Element in a Sorted Array Solutions

Time: O(n)
Space: O(n)


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