Leetcode Problem 27. Remove Element

27. Remove Element

Leetcode Solutions

Two Pointers Approach

  1. Initialize two pointers i and j to 0.
  2. Iterate through the array with pointer j.
  3. If nums[j] is not equal to val, copy nums[j] to nums[i] and increment i.
  4. Increment j regardless of whether a swap happened or not.
  5. Continue this process until j has reached the end of the array.
  6. Return i, which is the count of elements not equal to val.
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Two Pointers - Optimized for Rare Removals

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