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Leetcode Problem 961. N-Repeated Element in Size 2N Array

961. N-Repeated Element in Size 2N Array

Leetcode Solutions

Approach: Compare Neighboring Elements

  1. Iterate through the array nums.
  2. For each element nums[i], compare it with the next three elements nums[i+1], nums[i+2], and nums[i+3].
  3. If any of these comparisons show that nums[i] is equal to one of these elements, return nums[i] as the repeated element.
  4. If no repeated elements are found in the above steps, the repeated element must be at the last position, so return nums[nums.length - 1].
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Approach: Count Elements Using a HashMap

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