Added the doctests - Contributes to #9943

Author: Priyal595

matrix/count_islands_in_matrix.py

@@ -4,6 +4,20 @@
 
 
 class Matrix:  # Public class to implement a graph
+<<<<<<< Updated upstream
+=======
+    """This public class represents the 2-Dimensional matrix to count
+    the number of islands.An island is the connected group of 1s,including the top,
+    down, right, left as well as the diagonal connections.
+    >>> matrix1 = Matrix(3, 3, [[1, 1, 0], [0, 1, 0], [1, 0, 1]])
+    >>> matrix1.count_islands()
+    1
+    >>> matrix2 = Matrix(2, 2, [[1, 1], [1, 1]])
+    >>> matrix2.count_islands()
+    1
+    """
+
+>>>>>>> Stashed changes
     def __init__(self, row: int, col: int, graph: list[list[bool]]) -> None:
         self.ROW = row
         self.COL = col

matrix/matrix_class.py

@@ -204,9 +204,11 @@ def cofactors(self) -> Matrix:
         return Matrix(
             [
                 [
-                    self.minors().rows[row][column]
-                    if (row + column) % 2 == 0
-                    else self.minors().rows[row][column] * -1
+                    (
+                        self.minors().rows[row][column]
+                        if (row + column) % 2 == 0
+                        else self.minors().rows[row][column] * -1
+                    )
                     for column in range(self.minors().num_columns)
                 ]
                 for row in range(self.minors().num_rows)