# Untitled

unknown
plain_text
12 days ago
1.5 kB
7
Indexable
Never
```def count_nearly_regular_crosses(matrix):
def is_nearly_regular(matrix, row, col):
cross_value = matrix[row][col]
row_elements = matrix[row]
col_elements = [matrix[i][col] for i in range(len(matrix))]

# Count differences in the row and column
row_diff_count = sum(1 for x in row_elements if x != cross_value)
col_diff_count = sum(1 for x in col_elements if x != cross_value)

# Check if all differences are only in the intersection point
if row_diff_count == 0 and col_diff_count == 0:
return False
elif row_diff_count == 0 and col_diff_count == 1:
return True
elif row_diff_count == 1 and col_diff_count == 0:
return True
elif row_diff_count == 1 and col_diff_count == 1:
# Ensure the intersection point is the only differing element
intersection_differs = matrix[row][col] != cross_value
return intersection_differs

return False

rows = len(matrix)
cols = len(matrix[0])
nearly_regular_crosses_count = 0

for i in range(rows):
for j in range(cols):
if is_nearly_regular(matrix, i, j):
nearly_regular_crosses_count += 1

return nearly_regular_crosses_count

# Example usage:
matrix = [
[1, 2, 3],
[4, 5, 6],
[7, 5, 9]
]

result = count_nearly_regular_crosses(matrix)
print(f"Number of nearly regular crosses: {result}")
```