






"""simple docstring"""

import pytest

from datasets.parallel import ParallelBackendConfig, parallel_backend
from datasets.utils.py_utils import map_nested

from .utils import require_dill_gt_0_3_2, require_joblibspark, require_not_windows






def _lowerCAmelCase	(  __lowerCamelCase:Any   ):  # picklable for multiprocessing

      '''simple docstring'''






      return i + 1






@require_dill_gt_0_3_2
@require_joblibspark
@require_not_windows
def _lowerCAmelCase	(  ):

      '''simple docstring'''






      with parallel_backend("spark"   ):
            assert ParallelBackendConfig.backend_name == "spark"

      __magic_name__            =     [1, 2, 3]
      with pytest.raises(__lowerCamelCase   ):
            with parallel_backend("unsupported backend"   ):
                  map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=2   )

      with pytest.raises(__lowerCamelCase   ):
            with parallel_backend("unsupported backend"   ):
                  map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=-1   )






@require_dill_gt_0_3_2
@require_joblibspark
@require_not_windows
@pytest.mark.parametrize("num_proc" ,						[2, -1]   )
def _lowerCAmelCase	(  __lowerCamelCase:List[str]   ):

      '''simple docstring'''






      __magic_name__            =     [1, 2]
      __magic_name__            =     {"a": 1, "b": 2}
      __magic_name__            =     {"a": [1, 2], "b": [3, 4]}
      __magic_name__            =     {"a": {"1": 1}, "b": 2}
      __magic_name__            =     {"a": 1, "b": 2, "c": 3, "d": 4}
      __magic_name__            =     [2, 3]
      __magic_name__            =     {"a": 2, "b": 3}
      __magic_name__            =     {"a": [2, 3], "b": [4, 5]}
      __magic_name__            =     {"a": {"1": 2}, "b": 3}
      __magic_name__            =     {"a": 2, "b": 3, "c": 4, "d": 5}

      with parallel_backend("spark"   ):
            assert map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=__lowerCamelCase   ) == expected_map_nested_sa
            assert map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=__lowerCamelCase   ) == expected_map_nested_sa
            assert map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=__lowerCamelCase   ) == expected_map_nested_sa
            assert map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=__lowerCamelCase   ) == expected_map_nested_sa
            assert map_nested(__lowerCamelCase ,						__lowerCamelCase ,						num_proc=__lowerCamelCase   ) == expected_map_nested_sa











"""simple docstring"""

from __future__ import annotations

lowercase    			=       []






def _lowerCAmelCase	(  __lowerCamelCase:list[list[int]] ,						__lowerCamelCase:int ,						__lowerCamelCase:int   ):

						'''simple docstring'''






						for i in range(len(__lowerCamelCase   )   ):
												if board[row][i] == 1:
																		return False
						for i in range(len(__lowerCamelCase   )   ):
												if board[i][column] == 1:
																		return False
						for i, j in zip(range(__lowerCamelCase ,						-1 ,						-1   ) ,						range(__lowerCamelCase ,						-1 ,						-1   )   ):
												if board[i][j] == 1:
																		return False
						for i, j in zip(range(__lowerCamelCase ,						-1 ,						-1   ) ,						range(__lowerCamelCase ,						len(__lowerCamelCase   )   )   ):
												if board[i][j] == 1:
																		return False
						return True






def _lowerCAmelCase	(  __lowerCamelCase:list[list[int]] ,						__lowerCamelCase:int   ):

						'''simple docstring'''






						if row >= len(__lowerCamelCase   ):
												solution.append(__lowerCamelCase   )
												printboard(__lowerCamelCase   )
												print()
												return True
						for i in range(len(__lowerCamelCase   )   ):
												if is_safe(__lowerCamelCase ,						__lowerCamelCase ,						__lowerCamelCase   ):
																		__magic_name__            =     1
																		solve(__lowerCamelCase ,						row + 1   )
																		__magic_name__            =     0
						return False






def _lowerCAmelCase	(  __lowerCamelCase:list[list[int]]   ):

						'''simple docstring'''






						for i in range(len(__lowerCamelCase   )   ):
												for j in range(len(__lowerCamelCase   )   ):
																		if board[i][j] == 1:
																								print("Q" ,						end=" "   )
																		else:
																								print("." ,						end=" "   )
												print()


# n=int(input("The no. of queens"))
lowercase    			=       8
lowercase    			=       [[0 for i in range(n)] for j in range(n)]
solve(board, 0)


print('''The total no. of solutions are :''', len(solution))



