题目描述 :给定一个数组(也就是类似于图片 m*n),要求求出以它为中心的九宫格的平均值。并返回这个新数组
题目思路:没什么思路,就按照本来的写就好了,要考虑边界条件
class Solution:
def imageSmoother(self, M: List[List[int]]) -> List[List[int]]:
neighbour = [[-1, -1], [-1, 0], [-1, 1], [0, -1],[0, 0], [0, 1], [1, -1], [1, 0], [1, 1]]
r = len(M)
c = len(M[0])
s_array = []
for r_i in range(r):
c_array = []
for c_i in range(c):
count = 0
sum_a = 0
for i in neighbour:
if (0 <= r_i+i[0] < r) and (0 <= c_i + i[1] < c):
sum_a += M[r_i+i[0]][c_i+i[1]]
count += 1
# print (r_i,c_i, sum_a)
c_array.append(int(sum_a/count))
s_array.append(c_array)
return s_array