class Solution:
def possibleToStamp(
self, grid: List[List[int]], stampHeight: int, stampWidth: int
) -> bool:
m, n = len(grid), len(grid[0])
s = [[0] * (n + 1) for _ in range(m + 1)]
for i, row in enumerate(grid, 1):
for j, v in enumerate(row, 1):
s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] + v
d = [[0] * (n + 2) for _ in range(m + 2)]
for i in range(1, m - stampHeight + 2):
for j in range(1, n - stampWidth + 2):
x, y = i + stampHeight - 1, j + stampWidth - 1
if s[x][y] - s[x][j - 1] - s[i - 1][y] + s[i - 1][j - 1] == 0:
d[i][j] += 1
d[i][y + 1] -= 1
d[x + 1][j] -= 1
d[x + 1][y + 1] += 1
for i, row in enumerate(grid, 1):
for j, v in enumerate(row, 1):
d[i][j] += d[i - 1][j] + d[i][j - 1] - d[i - 1][j - 1]
if v == 0 and d[i][j] == 0:
return False
return True