Rotate Image

Try to solve the Rotate Image problem.

Statement

Given an n×nn \times n matrix, rotate the matrix 90 degrees clockwise. The performed rotation should be in place, i.e., the given matrix is modified directly without allocating another matrix.

Note: The function should only return the modified input matrix.

Constraints:

  • matrix.length == matrix[i].length
  • 1≤1 \leq matrix.length ≤20\leq 20
  • −103≤-10^3 \leq matrix[i][j] ≤103\leq 10^3

Examples

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