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TCS

TCS OA-4 2024

Problem Description

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.

Input Format

  • The first line contains an integer N, representing the length of the array.
  • The second line contains N space-separated integers.

Output Format

Print the sum of all the unique elements of nums.

Constraints

  • 1 ≤ N ≤ 10⁵
  • -10⁵ ≤ nums[i] ≤ 10⁵

Example

Sample Input:

7
[1,5,3,4,1,3,2]  

Sample Output:

11

Explanation:

The unique elements are: 5, 4, 2
Therefore, 5+4+2 = 11.