[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

matrix/median_matrix.py

@@ -2,6 +2,7 @@
 https://en.wikipedia.org/wiki/Median
 """
 
+
 def median(matrix: list[list[int]]) -> int:
     """
     Calculate the median of a sorted matrix.
@@ -23,16 +24,17 @@ def median(matrix: list[list[int]]) -> int:
     """
     # Flatten the matrix into a 1D list
     linear = [num for row in matrix for num in row]
-    
+
     # Sort the 1D list
     linear.sort()
-    
+
     # Calculate the middle index
     mid = (0 + len(linear) - 1) // 2
-    
+
     # Return the median
     return linear[mid]
 
+
 if __name__ == "__main__":
     import doctest