Flip an Image / 2 D matrix

Flip an Image / 2 D matrix

Example 1:

Input: [[1,1,0],[1,0,1],[0,0,0]]
Output: [[1,0,0],[0,1,0],[1,1,1]]
Explanation: First reverse each row: [[0,1,1],[1,0,1],[0,0,0]].
Then, invert the image: [[1,0,0],[0,1,0],[1,1,1]]

Example 2:

Input: [[1,1,0,0],[1,0,0,1],[0,1,1,1],[1,0,1,0]]
Output: [[1,1,0,0],[0,1,1,0],[0,0,0,1],[1,0,1,0]]
Explanation: First reverse each row: [[0,0,1,1],[1,0,0,1],[1,1,1,0],[0,1,0,1]].
Then invert the image: [[1,1,0,0],[0,1,1,0],[0,0,0,1],[1,0,1,0]]

class Solution {
public:
    vector<vector<int>> flipAndInvertImage(vector<vector<int>>& A) {
        for (int row = 0; row < A.size(); row++)
        {
            int numCol = A[row].size();
            int col;
            for (col = 0; col <  (numCol + 1) / 2; col++)
            {
                int temp = A[row][col] ^ 1;
                A[row][col] = A[row][numCol -1 - col] ^ 1;
                A[row][numCol - 1 - col] = temp;     
            }
        }
        return A;
    }
};