0832. Flipping an Image

https://leetcode.com/problems/flipping-an-image

Description

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.

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