LeetCode 54: Spiral Matrix — Step-by-Step Visual Trace

📰 Dev.to · tracelit

Learn to solve LeetCode's Spiral Matrix problem by tracing the matrix in a spiral order, starting from the top-left corner and moving clockwise through each layer, and implement the solution in code

intermediate Published 9 Apr 2026
Action Steps
  1. Initialize a matrix with given dimensions m x n
  2. Set up four pointers (top, bottom, left, right) to track the current boundaries of the matrix
  3. Start from the top-left corner and traverse the matrix in a spiral order, moving clockwise through each layer
  4. Append each element to the result list as you traverse the matrix
  5. Update the pointers after each layer to ensure the spiral order is maintained
Who Needs to Know This

Software engineers and developers who want to improve their problem-solving skills and practice coding interviews can benefit from this tutorial, as it provides a step-by-step visual trace of the solution

Key Insight

💡 To solve the Spiral Matrix problem, you need to maintain four pointers to track the current boundaries of the matrix and traverse the matrix in a spiral order, starting from the top-left corner and moving clockwise through each layer

Share This
Solve LeetCode's Spiral Matrix problem with a step-by-step visual trace #leetcode #spiralorder

Key Takeaways

Learn to solve LeetCode's Spiral Matrix problem by tracing the matrix in a spiral order, starting from the top-left corner and moving clockwise through each layer, and implement the solution in code

Full Article

Given an m x n matrix, return all elements of the matrix in spiral order, starting from the top-left corner and moving clockwise through each layer.
Read full article → ← Back to Reads

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