2023.12.20 Today's Challenge

https://leetcode.com/problems/image-smoother/

Image Smoother - LeetCode

class Solution:
    def imageSmoother(self, img: List[List[int]]) -> List[List[int]]:
        m, n = len(img), len(img[0])

        s_img = [[0] * n for _ in range(m)]

        for i in range(m):
            for j in range(n):
                s, cnt = 0, 0
                for x in (i-1, i, i+1):
                    for y in (j-1, j, j+1):
                        if 0 <= x < m and 0 <= y < n:
                            s += img[x][y]
                            cnt += 1
                s_img[i][j] = s // cnt

        return s_img