Spiral Matrix
Updated Jan 31, 2026
Problem
Given an m x n matrix, return all elements of the matrix in spiral order.
Constraints
m == matrix.length
n == matrix[i].length
1 <= m, n <= 10
-100 <= matrix[i][j] <= 100
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]
Function Signature
def spiralOrder(self, matrix: list[list[int]]) -> list[int]
How to Submit
Implement a Solution class with a spiralOrder method.
Your method will be called with the input parameters and should return the answer.