961. N-Repeated Element in Size 2N Array

You are given an integer array nums with the following properties: - nums.length == 2 * n. - nums contains n + 1 unique values, n of which occur exactly once in the array. - Exactly one element of nums is repeated n times. Return the element that is repeated n times. Example 1: Input: nums = [1,2,3,3] Output: 3 Example 2: Input: nums = [2,1,2,5,3,2] Output: 2 Example 3: Input: nums = [