Moving All Negative Elements to the End of an Array in Python

📰 Dev.to · Sri Mahalakshmi

Learn to move all negative elements to the end of an array in Python using a two-pointer technique

beginner Published 22 Mar 2026
Action Steps
  1. Initialize two pointers, one at the beginning and one at the end of the array
  2. Use a loop to iterate through the array and swap negative elements with positive ones at the end
  3. Implement a conditional statement to check if an element is negative and move it to the end
  4. Test the function with sample arrays to verify its correctness
  5. Apply this technique to real-world problems, such as data filtering or sorting
Who Needs to Know This

This technique is useful for software engineers and data scientists who need to manipulate arrays in Python. It can be applied in various scenarios, such as data preprocessing or algorithm design.

Key Insight

💡 The two-pointer technique is an efficient way to rearrange elements in an array without using extra space

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Key Takeaways

Learn to move all negative elements to the end of an array in Python using a two-pointer technique

Full Article

Problem Explanation You are given an array arr[] containing both positive and negative...
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