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Grokking the Coding Interview Patterns in C#

Solution: Spiral Matrix

Explore how to implement a spiral order traversal of an m by n matrix by maintaining direction control and reducing row and column ranges. Learn to return elements in spiral order efficiently with a clear algorithm and analyze its time and space complexity.

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Statement

Given an m×nm\times n matrix, return an array containing the matrix elements in spiral order, starting from the top-left cell.

Constraints:

  • 1≤1\leq matrix.length ≤10\leq 10
  • 1≤1\leq matrix[i].length ≤10\leq 10
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