48. Rotate Image (Array)

You are given an n x n 2D matrix representing an image.

Rotate the image by 90 degrees (clockwise).

Follow up:
Could you do this in-place?

class Solution {
public:
    void rotate(vector<vector<int> > &matrix) {
        int temp;
        for(int i = ; i < matrix.size()/; i++)
        {
            for(int j = i; j < matrix[].size()-i-; j++)
            {
                temp = matrix[i][j];
                matrix[i][j] = matrix[matrix[].size()--j][i];
                matrix[matrix[].size()--j][i] = matrix[matrix.size()--i][matrix.size()--j];
                matrix[matrix.size()--i][matrix.size()--j] =  matrix[j][matrix.size()--i];
                matrix[j][matrix.size()--i] = temp;
            }
        }
    }
};