Sum of Unique Elements
You are given an integer array nums. The unique elements of an array are the elements that appear exactly once in the array.
Return the sum of all the unique elements of nums.
Example 1
Input
nums = [1,2,3,2]Output
4The unique elements are [1, 3], and the sum is 4.
Example 2
Input
nums = [1,1,1,1,1]Output
0There are no unique elements, and the sum is 0.
Constraints
- 1 <= nums.length <= 100
- 1 <= nums[i] <= 100