832. Flipping an Image

Easy

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].

Solution

class Solution:
    def flipAndInvertImage(self, image: List[List[int]]) -> List[List[int]]:
        for row in image:
            row.reverse()

            for i in range(len(row)):
                if row[i] == 0:
                    row[i] = 1
                else:
                    row[i] = 0

        return image