
class 					lowerCamelCase		:  # Public class to implement a graph





     def __init__(self				:   Optional[int]    ,   _A				:   int    ,   _A				:   int    ,   _A				:   list[list[bool]]       )						->						None:
         snake_case								= row
         snake_case								= col
         snake_case								= graph





     def 		UpperCAmelCase(self				:   List[str]    ,   _A				:   int    ,   _A				:   int    ,   _A				:   list[list[bool]]       )						->						bool:
         return (
             0 <= i < self.ROW
             and 0 <= j < self.COL
             and not visited[i][j]
             and self.graph[i][j]
         )





     def 		UpperCAmelCase(self				:   Tuple    ,   _A				:   int    ,   _A				:   int    ,   _A				:   list[list[bool]]       )						->						None:
         # Checking all 8 elements surrounding nth element
         snake_case								= [-1, -1, -1, 0, 0, 1, 1, 1]  # Coordinate order
         snake_case								= [-1, 0, 1, -1, 1, -1, 0, 1]
         snake_case								= True  # Make those cells visited
         for k in range(8       ):
             if self.is_safe(i + row_nbr[k]    ,   j + col_nbr[k]    ,   _A       ):
                 self.diffs(i + row_nbr[k]    ,   j + col_nbr[k]    ,   _A       )





     def 		UpperCAmelCase(self				:   str       )						->						int:  # And finally, count all islands.
         snake_case								= [[False for j in range(self.COL       )] for i in range(self.ROW       )]
         snake_case								= 0
         for i in range(self.ROW       ):
             for j in range(self.COL       ):
                 if visited[i][j] is False and self.graph[i][j] == 1:
                     self.diffs(_A    ,   _A    ,   _A       )
                     count += 1
         return count



import unittest

from transformers.utils.backbone_utils import (
    BackboneMixin,
    get_aligned_output_features_output_indices,
    verify_out_features_out_indices,
)







class 					lowerCamelCase		(  unittest.TestCase  ):





     def 		UpperCAmelCase(self				:   Tuple       )						->						List[str]:
         snake_case								= ["a", "b", "c"]

         # Defaults to last layer if both are None
         snake_case					,							snake_case								= get_aligned_output_features_output_indices(_A    ,   _A    ,   _A       )
         self.assertEqual(_A    ,   ["c"]       )
         self.assertEqual(_A    ,   [2]       )

         # Out indices set to match out features
         snake_case					,							snake_case								= get_aligned_output_features_output_indices(["a", "c"]    ,   _A    ,   _A       )
         self.assertEqual(_A    ,   ["a", "c"]       )
         self.assertEqual(_A    ,   [0, 2]       )

         # Out features set to match out indices
         snake_case					,							snake_case								= get_aligned_output_features_output_indices(_A    ,   [0, 2]    ,   _A       )
         self.assertEqual(_A    ,   ["a", "c"]       )
         self.assertEqual(_A    ,   [0, 2]       )

         # Out features selected from negative indices
         snake_case					,							snake_case								= get_aligned_output_features_output_indices(_A    ,   [-3, -1]    ,   _A       )
         self.assertEqual(_A    ,   ["a", "c"]       )
         self.assertEqual(_A    ,   [-3, -1]       )





     def 		UpperCAmelCase(self				:   Optional[int]       )						->						str:
         # Stage names must be set
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(["a", "b"]    ,   (0, 1)    ,   _A       )

         # Out features must be a list
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(("a", "b")    ,   (0, 1)    ,   ["a", "b"]       )

         # Out features must be a subset of stage names
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(["a", "b"]    ,   (0, 1)    ,   ["a"]       )

         # Out indices must be a list or tuple
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(_A    ,   0    ,   ["a", "b"]       )

         # Out indices must be a subset of stage names
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(_A    ,   (0, 1)    ,   ["a"]       )

         # Out features and out indices must be the same length
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(["a", "b"]    ,   (0,)    ,   ["a", "b", "c"]       )

         # Out features should match out indices
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(["a", "b"]    ,   (0, 2)    ,   ["a", "b", "c"]       )

         # Out features and out indices should be in order
         with self.assertRaises(_A       ):
             verify_out_features_out_indices(["b", "a"]    ,   (0, 1)    ,   ["a", "b"]       )

         # Check passes with valid inputs
         verify_out_features_out_indices(["a", "b", "d"]    ,   (0, 1, -1)    ,   ["a", "b", "c", "d"]       )





     def 		UpperCAmelCase(self				:   List[str]       )						->						str:
         snake_case								= BackboneMixin()

         snake_case								= ["a", "b", "c"]
         snake_case								= ["a", "c"]
         snake_case								= [0, 2]

         # Check that the output features and indices are set correctly
         self.assertEqual(backbone.out_features    ,   ["a", "c"]       )
         self.assertEqual(backbone.out_indices    ,   [0, 2]       )

         # Check out features and indices are updated correctly
         snake_case								= ["a", "b"]
         self.assertEqual(backbone.out_features    ,   ["a", "b"]       )
         self.assertEqual(backbone.out_indices    ,   [0, 1]       )

         snake_case								= [-3, -1]
         self.assertEqual(backbone.out_features    ,   ["a", "c"]       )
         self.assertEqual(backbone.out_indices    ,   [-3, -1]       )

