0832. Flipping an Image
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https://leetcode.com/problems/flipping-an-image
Given an n x n
binary matrix image
, 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 [0,1,1]
.
To invert an image means that each 0
is replaced by 1
, and each 1
is replaced by 0
.
For example, inverting [0,1,1]
results in [1,0,0]
.
Example 1:
**Input:** image = [[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:** image = [[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]]
Constraints:
n == image.length
n == image[i].length
1 <= n <= 20
images[i][j]
is either 0
or 1
.