[LeetCode] Flipping an Image 翻转图像

Given a binary matrix?A,we want to flip the image horizontally,then invert it,and return the resulting image.

To flip an image horizontally means that each row of the image is reversed.? For example,flipping?[1,1,0]?horizontally results in?[0,1].

To invert an image means?that each?0?is replaced by?1,and each?1?is replaced by?0.?For example,inverting?[0,1]?results in?[1,0].

Example 1:

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

Example 2:

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

Notes:

• 1 <= A.length = A[0].length <= 20
• 0 <= A[i][j]?<=?1