The single number
Easyarraybit manipulation
Every number in nums appears twice except one that appears once. Return it, in O(n) time and O(1) memory.
Example 1
Input: nums = [2,2,1] Output: 1
Example 2
Input: nums = [4,1,2,1,2] Output: 4
Constraints
- 1 ≤ nums.length ≤ 3·10⁴
- Exactly one value appears once
Submit checks your solution against 7 tests, including hidden ones.
/**
* @param {int[]} nums
* @return {int}
*/
function singleNumber(nums) {
}