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    Practice problems / Rotate a matrix 90°

    Rotate a matrix 90°

    Mediummatrixarraymath

    Rotate an n × n matrix 90 degrees clockwise and return it. Try to do it in place, without a second matrix.

    Example 1

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

    Example 2

    Input:  matrix = [[5,1,9,11],[2,4,8,10],[13,3,6,7],[15,14,12,16]]
    Output: [[15,13,2,5],[14,3,4,1],[12,6,8,9],[16,7,10,11]]

    Constraints

    • 1 ≤ n ≤ 20

    Submit checks your solution against 7 tests, including hidden ones.

    /**
     * @param {int[][]} matrix
     * @return {int[][]}
     */
    function rotate(matrix) {
      
    }
    
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