

"""simple docstring"""



from __future__ import annotations

SCREAMING_SNAKE_CASE_					:	Tuple							  =						list[list[int]]

# assigning initial values to the grid
SCREAMING_SNAKE_CASE_					:	Matrix							  =						[
    [3, 0, 6, 5, 0, 8, 4, 0, 0],
    [5, 2, 0, 0, 0, 0, 0, 0, 0],
    [0, 8, 7, 0, 0, 0, 0, 3, 1],
    [0, 0, 3, 0, 1, 0, 0, 8, 0],
    [9, 0, 0, 8, 6, 3, 0, 0, 5],
    [0, 5, 0, 0, 9, 0, 6, 0, 0],
    [1, 3, 0, 0, 0, 0, 2, 5, 0],
    [0, 0, 0, 0, 0, 0, 0, 7, 4],
    [0, 0, 5, 2, 0, 6, 3, 0, 0],
]

# a grid with no solution
SCREAMING_SNAKE_CASE_					:	Matrix							  =						[
    [5, 0, 6, 5, 0, 8, 4, 0, 3],
    [5, 2, 0, 0, 0, 0, 0, 0, 2],
    [1, 8, 7, 0, 0, 0, 0, 3, 1],
    [0, 0, 3, 0, 1, 0, 0, 8, 0],
    [9, 0, 0, 8, 6, 3, 0, 0, 5],
    [0, 5, 0, 0, 9, 0, 6, 0, 0],
    [1, 3, 0, 0, 0, 0, 2, 5, 0],
    [0, 0, 0, 0, 0, 0, 0, 7, 4],
    [0, 0, 5, 2, 0, 6, 3, 0, 0],
]





def  _snake_case     (    UpperCAmelCase_  :					Matrix					,   UpperCAmelCase_  :					int					,   UpperCAmelCase_  :					int					,   UpperCAmelCase_  :					int			):
     for i in range(9			):
          if grid[row][i] == n or grid[i][column] == n:
               return False

     for i in range(3			):
          for j in range(3			):
               if grid[(row - row % 3) + i][(column - column % 3) + j] == n:
                    return False

     return True





def  _snake_case     (    UpperCAmelCase_  :					Matrix			):
     for i in range(9			):
          for j in range(9			):
               if grid[i][j] == 0:
                    return i, j
     return None





def  _snake_case     (    UpperCAmelCase_  :					Matrix			):
     if location := find_empty_location(UpperCAmelCase_			):
          A__			,				A__										=  location
     else:
          # If the location is ``None``, then the grid is solved.
          return grid

     for digit in range(1					,   10			):
          if is_safe(UpperCAmelCase_					,   UpperCAmelCase_					,   UpperCAmelCase_					,   UpperCAmelCase_			):
               A__										=  digit

               if sudoku(UpperCAmelCase_			) is not None:
                    return grid

               A__										=  0

     return None





def  _snake_case     (    UpperCAmelCase_  :					Matrix			):
     for row in grid:
          for cell in row:
               print(UpperCAmelCase_					,   end=""" """			)
          print()


if __name__ == "__main__":
    # make a copy of grid so that you can compare with the unmodified grid
    for example_grid in (initial_grid, no_solution):
        print('\nExample grid:\n' + '=' * 2_0)
        print_solution(example_grid)
        print('\nExample grid solution:')
        SCREAMING_SNAKE_CASE_					:	int							  =						sudoku(example_grid)
        if solution is not None:
            print_solution(solution)
        else:
            print('Cannot find a solution.')









"""simple docstring"""



from __future__ import annotations



class 					a						:



    """simple docstring"""



    def __init__(     self: Any    ,						UpperCamelCase: str    ,						UpperCamelCase: str       ):






         """simple docstring"""


         A__			,				A__										=  text, pattern
         A__			,				A__										=  len(UpperCamelCase       ), len(UpperCamelCase       )

    def 				UpperCamelCase	(     self: Dict    ,						UpperCamelCase: str       ):






         """simple docstring"""


         for i in range(self.patLen - 1    ,						-1    ,						-1       ):
              if char == self.pattern[i]:
                   return i
         return -1

    def 				UpperCamelCase	(     self: str    ,						UpperCamelCase: int       ):






         """simple docstring"""


         for i in range(self.patLen - 1    ,						-1    ,						-1       ):
              if self.pattern[i] != self.text[current_pos + i]:
                   return current_pos + i
         return -1





    def 				UpperCamelCase	(     self: List[Any]       ):






         """simple docstring"""


         A__										=  []
         for i in range(self.textLen - self.patLen + 1       ):
              A__										=  self.mismatch_in_text(UpperCamelCase       )
              if mismatch_index == -1:
                   positions.append(UpperCamelCase       )
              else:
                   A__										=  self.match_in_pattern(self.text[mismatch_index]       )
                   A__										=  (
                       mismatch_index - match_index
                   )  # shifting index lgtm [py/multiple-definition]
         return positions

SCREAMING_SNAKE_CASE_					:	List[Any]							  =						'ABAABA'
SCREAMING_SNAKE_CASE_					:	List[Any]							  =						'AB'
SCREAMING_SNAKE_CASE_					:	Union[str, Any]							  =						BoyerMooreSearch(text, pattern)
SCREAMING_SNAKE_CASE_					:	int							  =						bms.bad_character_heuristic()

if len(positions) == 0:
 print('No match found')
else:
 print('Pattern found in following positions: ')
 print(positions)






