Inplace Rotate Matrix 90 Degrees Anti-Clockwise

You are provided with a square matrix of non-negative integers of size 'N x N'. The task is to rotate this matrix by 90 degrees in an anti-clockwise direction without utilizing any extra space.

Example:

Input:

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

Output:

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

Constraints:

• 1 ≤ T ≤ 50
• 1 ≤ N ≤ 100
• 1 ≤ ARR[i][j] ≤ 109

Note:

You are not required to print anything; it has already been handled. Just focus on implementing the function that performs the rotation.