



"""simple docstring"""





class 			lowercase__			:
							'''simple docstring'''







							def __init__(  self						)			->							Dict:
									_UpperCAmelCase							 =		{}






							def        lowerCamelCase_   (  self						)			->							None:
									print(self.vertex						)
									for i in self.vertex:
											print(snake_case	,       ' -> '	,       ' -> '.join([str(snake_case						) for j in self.vertex[i]]						)						)






							def        lowerCamelCase_   (  self	,       snake_case	,       snake_case						)			->							None:
									# check if vertex is already present,
									if from_vertex in self.vertex:
											self.vertex[from_vertex].append(snake_case						)
									else:
											# else make a new vertex
											_UpperCAmelCase							 =		[to_vertex]






							def        lowerCamelCase_   (  self						)			->							None:
									# visited array for storing already visited nodes
									_UpperCAmelCase							 =		[False] * len(self.vertex						)

									# call the recursive helper function
									for i in range(len(self.vertex						)						):
											if not visited[i]:
													self.dfs_recursive(snake_case	,       snake_case						)






							def        lowerCamelCase_   (  self	,       snake_case	,       snake_case						)			->							None:
									# mark start vertex as visited
									_UpperCAmelCase							 =		True

									print(snake_case	,       end=' '						)

									# Recur for all the vertices that are adjacent to this node
									for i in self.vertex:
											if not visited[i]:
													self.dfs_recursive(snake_case	,       snake_case						)


if __name__ == "__main__":
					lowercase  							=					Graph()
					g.add_edge(0, 1)
					g.add_edge(0, 2)
					g.add_edge(1, 2)
					g.add_edge(2, 0)
					g.add_edge(2, 3)
					g.add_edge(3, 3)

					g.print_graph()
					print('''DFS:''')
					g.dfs()

					# OUTPUT:
					# 0  ->  1 -> 2
					# 1  ->  2
					# 2  ->  0 -> 3
					# 3  ->  3
					# DFS:
					#  0 1 2 3







"""simple docstring"""





import unittest

import numpy as np

from transformers.testing_utils import require_flax, require_tf, require_torch
from transformers.utils import (
    expand_dims,
    flatten_dict,
    is_flax_available,
    is_tf_available,
    is_torch_available,
    reshape,
    squeeze,
    transpose,
)


if is_flax_available():
					import jax.numpy as jnp

if is_tf_available():
					import tensorflow as tf

if is_torch_available():
					import torch




class 			lowercase__			(      unittest.TestCase    ):
							'''simple docstring'''







							def        lowerCamelCase_   (  self						)			->							Dict:
									_UpperCAmelCase							 =		{
									    'task_specific_params': {
									        'summarization': {'length_penalty': 1.0, 'max_length': 128, 'min_length': 12, 'num_beams': 4},
									        'summarization_cnn': {'length_penalty': 2.0, 'max_length': 142, 'min_length': 56, 'num_beams': 4},
									        'summarization_xsum': {'length_penalty': 1.0, 'max_length': 62, 'min_length': 11, 'num_beams': 6},
									    }
									}
									_UpperCAmelCase							 =		{
									    'task_specific_params.summarization.length_penalty': 1.0,
									    'task_specific_params.summarization.max_length': 128,
									    'task_specific_params.summarization.min_length': 12,
									    'task_specific_params.summarization.num_beams': 4,
									    'task_specific_params.summarization_cnn.length_penalty': 2.0,
									    'task_specific_params.summarization_cnn.max_length': 142,
									    'task_specific_params.summarization_cnn.min_length': 56,
									    'task_specific_params.summarization_cnn.num_beams': 4,
									    'task_specific_params.summarization_xsum.length_penalty': 1.0,
									    'task_specific_params.summarization_xsum.max_length': 62,
									    'task_specific_params.summarization_xsum.min_length': 11,
									    'task_specific_params.summarization_xsum.num_beams': 6,
									}

									self.assertEqual(flatten_dict(snake_case						)	,       snake_case						)






							def        lowerCamelCase_   (  self						)			->							List[str]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									self.assertTrue(np.allclose(transpose(snake_case						)	,       x.transpose()						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									self.assertTrue(np.allclose(transpose(snake_case	,       axes=(1, 2, 0)						)	,       x.transpose((1, 2, 0)						)						)						)






							@require_torch
							def        lowerCamelCase_   (  self						)			->							List[str]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case						)	,       transpose(snake_case						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case	,       axes=(1, 2, 0)						)	,       transpose(snake_case	,       axes=(1, 2, 0)						).numpy()						)						)






							@require_tf
							def        lowerCamelCase_   (  self						)			->							Union[str, Any]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case						)	,       transpose(snake_case						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case	,       axes=(1, 2, 0)						)	,       transpose(snake_case	,       axes=(1, 2, 0)						).numpy()						)						)






							@require_flax
							def        lowerCamelCase_   (  self						)			->							Union[str, Any]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case						)	,       np.asarray(transpose(snake_case						)						)						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(transpose(snake_case	,       axes=(1, 2, 0)						)	,       np.asarray(transpose(snake_case	,       axes=(1, 2, 0)						)						)						)						)






							def        lowerCamelCase_   (  self						)			->							List[str]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (4, 3)						)	,       np.reshape(snake_case	,       (4, 3)						)						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (12, 5)						)	,       np.reshape(snake_case	,       (12, 5)						)						)						)






							@require_torch
							def        lowerCamelCase_   (  self						)			->							Optional[Any]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (4, 3)						)	,       reshape(snake_case	,       (4, 3)						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (12, 5)						)	,       reshape(snake_case	,       (12, 5)						).numpy()						)						)






							@require_tf
							def        lowerCamelCase_   (  self						)			->							Union[str, Any]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (4, 3)						)	,       reshape(snake_case	,       (4, 3)						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (12, 5)						)	,       reshape(snake_case	,       (12, 5)						).numpy()						)						)






							@require_flax
							def        lowerCamelCase_   (  self						)			->							Tuple:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (4, 3)						)	,       np.asarray(reshape(snake_case	,       (4, 3)						)						)						)						)

									_UpperCAmelCase							 =		np.random.randn(3	,       4	,       5						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(reshape(snake_case	,       (12, 5)						)	,       np.asarray(reshape(snake_case	,       (12, 5)						)						)						)						)






							def        lowerCamelCase_   (  self						)			->							str:
									_UpperCAmelCase							 =		np.random.randn(1	,       3	,       4						)
									self.assertTrue(np.allclose(squeeze(snake_case						)	,       np.squeeze(snake_case						)						)						)

									_UpperCAmelCase							 =		np.random.randn(1	,       4	,       1	,       5						)
									self.assertTrue(np.allclose(squeeze(snake_case	,       axis=2						)	,       np.squeeze(snake_case	,       axis=2						)						)						)






							@require_torch
							def        lowerCamelCase_   (  self						)			->							Union[str, Any]:
									_UpperCAmelCase							 =		np.random.randn(1	,       3	,       4						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case						)	,       squeeze(snake_case						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(1	,       4	,       1	,       5						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case	,       axis=2						)	,       squeeze(snake_case	,       axis=2						).numpy()						)						)






							@require_tf
							def        lowerCamelCase_   (  self						)			->							Optional[int]:
									_UpperCAmelCase							 =		np.random.randn(1	,       3	,       4						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case						)	,       squeeze(snake_case						).numpy()						)						)

									_UpperCAmelCase							 =		np.random.randn(1	,       4	,       1	,       5						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case	,       axis=2						)	,       squeeze(snake_case	,       axis=2						).numpy()						)						)






							@require_flax
							def        lowerCamelCase_   (  self						)			->							str:
									_UpperCAmelCase							 =		np.random.randn(1	,       3	,       4						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case						)	,       np.asarray(squeeze(snake_case						)						)						)						)

									_UpperCAmelCase							 =		np.random.randn(1	,       4	,       1	,       5						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(squeeze(snake_case	,       axis=2						)	,       np.asarray(squeeze(snake_case	,       axis=2						)						)						)						)






							def        lowerCamelCase_   (  self						)			->							Union[str, Any]:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									self.assertTrue(np.allclose(expand_dims(snake_case	,       axis=1						)	,       np.expand_dims(snake_case	,       axis=1						)						)						)






							@require_torch
							def        lowerCamelCase_   (  self						)			->							Dict:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		torch.tensor(snake_case						)
									self.assertTrue(np.allclose(expand_dims(snake_case	,       axis=1						)	,       expand_dims(snake_case	,       axis=1						).numpy()						)						)






							@require_tf
							def        lowerCamelCase_   (  self						)			->							int:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		tf.constant(snake_case						)
									self.assertTrue(np.allclose(expand_dims(snake_case	,       axis=1						)	,       expand_dims(snake_case	,       axis=1						).numpy()						)						)






							@require_flax
							def        lowerCamelCase_   (  self						)			->							str:
									_UpperCAmelCase							 =		np.random.randn(3	,       4						)
									_UpperCAmelCase							 =		jnp.array(snake_case						)
									self.assertTrue(np.allclose(expand_dims(snake_case	,       axis=1						)	,       np.asarray(expand_dims(snake_case	,       axis=1						)						)						)						)


