Rotate Image
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.

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Rotate Image
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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.

Example 1:
Input: [[1,2,3],[4,5,6],[7,8,9]]
Output: [[7,4,1],[8,5,2],[9,6,3]]
Constraints:

  • n==matrix.length==matrix[i].lengthn == \text{matrix.length} == \text{matrix}[i].\text{length}

  • 1≤n≤201 \leq n \leq 20

  • −1000≤matrix[i][j]≤1000-1000 \leq \text{matrix}[i][j] \leq 1000

Input
arr =[[1,2,3],[4,5,6],[7,8,9]]

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