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#!/usr/bin/env python
import typing
class Solution:
def getAverage(self, M, i, j):
sum = 0
count = 0
for x in range(i - 1, i + 2):
for y in range(j - 1, j + 2):
if x >= 0 and x < len(M) and y >= 0 and y < len(M[x]):
sum += M[x][y]
count += 1
return sum // count
def imageSmoother(
self, M: typing.List[typing.List[int]]
) -> typing.List[typing.List[int]]:
result: typing.List[typing.List[int]] = [
[0 for _ in range(len(M[0]))] for _ in range(len(M))
]
for i in range(len(M)):
for j in range(len(M[i])):
result[i][j] = self.getAverage(M, i, j)
return result
def main():
img = [[1, 1, 1], [1, 0, 1], [1, 1, 1]]
img2 = [[2, 3, 4], [5, 6, 7], [8, 9, 10], [11, 12, 13]]
img3 = [[100, 200, 100], [200, 50, 200], [100, 200, 100]]
solution = Solution()
print(solution.imageSmoother(img))
print(solution.imageSmoother(img2))
print(solution.imageSmoother(img3))
if __name__ == "__main__":
main()
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