Rotate Image

Problem Overview
The "Rotate Image" problem, commonly associated with LeetCode #48 and tagged Array, Matrix, Math, involves rotating an n x n 2D matrix 90 degrees clockwise in-place without using extra space for another matrix.[1]

Full Problem Statement

You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). You have to rotate the image in-place, which means you have to modify the input 2D matrix directly. DO NOT allocate another 2D matrix and do the rotation.[9][1]

Input/Output Examples

Example 1:
Input: matrix = [,,][2][3][4][5][6][7][8][1][9] Output: [,,][3][4][5][6][7][8][1][2][9] Explanation: After rotating 90 degrees clockwise, the top-left becomes bottom-left, and so on.[1]

Example 2:
Input: matrix = [,,,][4][5][6][7][8][10][2][3][9][1] Output: [,,,].[5][6][7][8][10][2][3][4][9][1]

Constraints

• n == matrix.length == matrix[i].length
• 1 <= n <= 20
• -1000 <= matrix[i][j] <= 1000.[1]