LeetCode - 540. Single Element in a Sorted Array
Given a sorted array consisting of only integers where every element appears twice except for one element which appears once. Find this single element that appears only once.
Example 1:
Input: [1,1,2,3,3,4,4,8,8] Output: 2
Example 2:
Input: [3,3,7,7,10,11,11] Output: 10
class Solution { public int singleNonDuplicate(int[] nums) { if (nums == null) return 0; int i = 0, j = 1; while (i < nums.length-1 && j < nums.length) { if (nums[i] == nums[j]) { i+=2; j+=2; } else { return nums[i]; } } return nums[nums.length-1]; } }
作者:Pickle
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