Spiral Matrix Traversal In O(m*n) Time Complexity
Solve LeetCode 54: Spiral Matrix by defining boundaries (top, bottom, left, right) that shrink as you traverse the matrix in spiral order. Time complexity is O(m⋅n), space complexity is O(1).
Top Interview 150
The Spiral Matrix problem is a common challenge involving matrix traversal. Let’s break down LeetCode 54: Spiral Matrix and implement a solution that works for any m×n matrix.
🚀 Problem Description
Given an m×n matrix, traverse it in spiral order and return the elements in a single array.
💡 Examples
Example 1
Input: matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
Output: [1, 2, 3, 6, 9, 8, 7, 4, 5]
Example 2
Input: matrix = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]
Output: [1, 2, 3, 4, 8, 12, 11, 10, 9, 5, 6, 7]...