





'''simple docstring'''

from collections import deque
from math import floor
from random import random
from time import time
class 							__lowerCAmelCase	:






       """simple docstring"""





       def __init__(				self  :						Optional[int]	)       ->	List[str]:

            '''simple docstring'''




            _UpperCamelCase							       =			{}





       def snake_case__		(				self  :						Any			,					lowerCAmelCase__  :						List[Any]			,					lowerCAmelCase__  :						str			,					lowerCAmelCase__  :						Any=1	)       ->	Tuple:

            '''simple docstring'''




            if self.graph.get(lowerCAmelCase__	):
                 if self.graph[u].count([w, v]	) == 0:
                      self.graph[u].append([w, v]	)
            else:
                 _UpperCamelCase							       =			[[w, v]]
            if not self.graph.get(lowerCAmelCase__	):
                 _UpperCamelCase							       =			[]





       def snake_case__		(				self  :						Optional[int]	)       ->	Tuple:

            '''simple docstring'''




            return list(self.graph	)





       def snake_case__		(				self  :						Union[str, Any]			,					lowerCAmelCase__  :						Optional[int]			,					lowerCAmelCase__  :						List[Any]	)       ->	Dict:

            '''simple docstring'''




            if self.graph.get(lowerCAmelCase__	):
                 for _ in self.graph[u]:
                      if _[1] == v:
                           self.graph[u].remove(lowerCAmelCase__	)





       def snake_case__		(				self  :						str			,					lowerCAmelCase__  :						Optional[int]=-2			,					lowerCAmelCase__  :						Dict=-1	)       ->	List[Any]:

            '''simple docstring'''




            if s == d:
                 return []
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            if s == -2:
                 _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			s

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if visited.count(node[1]	) < 1:
                                if node[1] == d:
                                     visited.append(lowerCAmelCase__	)
                                     return visited
                                else:
                                     stack.append(node[1]	)
                                     visited.append(node[1]	)
                                     _UpperCamelCase							       =			node[1]
                                     break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return visited





       def snake_case__		(				self  :						Union[str, Any]			,					lowerCAmelCase__  :						Tuple=-1	)       ->	Dict:

            '''simple docstring'''




            if c == -1:
                 _UpperCamelCase							       =			floor(random() * 10000	) + 10
            for i in range(lowerCAmelCase__	):
                 # every vertex has max 100 edges
                 for _ in range(floor(random() * 102	) + 1	):
                      _UpperCamelCase							       =			floor(random() * c	) + 1
                      if n != i:
                           self.add_pair(lowerCAmelCase__			,					lowerCAmelCase__			,					1	)





       def snake_case__		(				self  :						Optional[Any]			,					lowerCAmelCase__  :						List[str]=-2	)       ->	str:

            '''simple docstring'''




            _UpperCamelCase							       =			deque()
            _UpperCamelCase							       =			[]
            if s == -2:
                 _UpperCamelCase							       =			list(self.graph	)[0]
            d.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            while d:
                 _UpperCamelCase							       =			d.popleft()
                 if len(self.graph[s]	) != 0:
                      for node in self.graph[s]:
                           if visited.count(node[1]	) < 1:
                                d.append(node[1]	)
                                visited.append(node[1]	)
            return visited





       def snake_case__		(				self  :						Optional[Any]			,					lowerCAmelCase__  :						Union[str, Any]	)       ->	Tuple:

            '''simple docstring'''




            _UpperCamelCase							       =			0
            for x in self.graph:
                 for y in self.graph[x]:
                      if y[1] == u:
                           count += 1
            return count





       def snake_case__		(				self  :						List[str]			,					lowerCAmelCase__  :						Optional[Any]	)       ->	Union[str, Any]:

            '''simple docstring'''




            return len(self.graph[u]	)





       def snake_case__		(				self  :						Tuple			,					lowerCAmelCase__  :						Dict=-2	)       ->	str:

            '''simple docstring'''




            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            if s == -2:
                 _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			s
            _UpperCamelCase							       =			[]

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if visited.count(node[1]	) < 1:
                                stack.append(node[1]	)
                                visited.append(node[1]	)
                                _UpperCamelCase							       =			node[1]
                                break

            # check if all the children are visited
                 if s == ss:
                      sorted_nodes.append(stack.pop()	)
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return sorted_nodes





       def snake_case__		(				self  :						List[str]	)       ->	int:

            '''simple docstring'''




            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			-2
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			s
            _UpperCamelCase							       =			False
            _UpperCamelCase							       =			set()

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if (
                               visited.count(node[1]	) > 0
                               and node[1] != parent
                               and indirect_parents.count(node[1]	) > 0
                               and not on_the_way_back
                           ):
                                _UpperCamelCase							       =			len(lowerCAmelCase__	) - 1
                                while len_stack >= 0:
                                     if stack[len_stack] == node[1]:
                                          anticipating_nodes.add(node[1]	)
                                          break
                                     else:
                                          anticipating_nodes.add(stack[len_stack]	)
                                          len_stack -= 1
                           if visited.count(node[1]	) < 1:
                                stack.append(node[1]	)
                                visited.append(node[1]	)
                                _UpperCamelCase							       =			node[1]
                                break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      _UpperCamelCase							       =			True
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			False
                      indirect_parents.append(lowerCAmelCase__	)
                      _UpperCamelCase							       =			s
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return list(lowerCAmelCase__	)





       def snake_case__		(				self  :						List[str]	)       ->	Tuple:

            '''simple docstring'''




            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			-2
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			s
            _UpperCamelCase							       =			False
            _UpperCamelCase							       =			set()

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if (
                               visited.count(node[1]	) > 0
                               and node[1] != parent
                               and indirect_parents.count(node[1]	) > 0
                               and not on_the_way_back
                           ):
                                _UpperCamelCase							       =			len(lowerCAmelCase__	) - 1
                                while len_stack_minus_one >= 0:
                                     if stack[len_stack_minus_one] == node[1]:
                                          anticipating_nodes.add(node[1]	)
                                          break
                                     else:
                                          return True
                           if visited.count(node[1]	) < 1:
                                stack.append(node[1]	)
                                visited.append(node[1]	)
                                _UpperCamelCase							       =			node[1]
                                break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      _UpperCamelCase							       =			True
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			False
                      indirect_parents.append(lowerCAmelCase__	)
                      _UpperCamelCase							       =			s
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return False





       def snake_case__		(				self  :						Tuple			,					lowerCAmelCase__  :						List[Any]=-2			,					lowerCAmelCase__  :						Dict=-1	)       ->	int:

            '''simple docstring'''




            _UpperCamelCase							       =			time()
            self.dfs(lowerCAmelCase__			,					lowerCAmelCase__	)
            _UpperCamelCase							       =			time()
            return end - begin







       def snake_case__		(				self  :						List[str]			,					lowerCAmelCase__  :						Any=-2	)       ->	Optional[int]:

            '''simple docstring'''




            _UpperCamelCase							       =			time()
            self.bfs(lowerCAmelCase__	)
            _UpperCamelCase							       =			time()
            return end - begin

class 							__lowerCAmelCase	:






       """simple docstring"""





       def __init__(				self  :						Dict	)       ->	Tuple:

            '''simple docstring'''




            _UpperCamelCase							       =			{}





       def snake_case__		(				self  :						Tuple			,					lowerCAmelCase__  :						Optional[Any]			,					lowerCAmelCase__  :						Optional[int]			,					lowerCAmelCase__  :						Optional[Any]=1	)       ->	Any:

            '''simple docstring'''




            if self.graph.get(lowerCAmelCase__	):
                 # if there already is a edge
                 if self.graph[u].count([w, v]	) == 0:
                      self.graph[u].append([w, v]	)
            else:
                 # if u does not exist
                 _UpperCamelCase							       =			[[w, v]]
            # add the other way
            if self.graph.get(lowerCAmelCase__	):
                 # if there already is a edge
                 if self.graph[v].count([w, u]	) == 0:
                      self.graph[v].append([w, u]	)
            else:
                 # if u does not exist
                 _UpperCamelCase							       =			[[w, u]]





       def snake_case__		(				self  :						Optional[int]			,					lowerCAmelCase__  :						Optional[Any]			,					lowerCAmelCase__  :						List[Any]	)       ->	int:

            '''simple docstring'''




            if self.graph.get(lowerCAmelCase__	):
                 for _ in self.graph[u]:
                      if _[1] == v:
                           self.graph[u].remove(lowerCAmelCase__	)
        # the other way round
            if self.graph.get(lowerCAmelCase__	):
                 for _ in self.graph[v]:
                      if _[1] == u:
                           self.graph[v].remove(lowerCAmelCase__	)





       def snake_case__		(				self  :						Tuple			,					lowerCAmelCase__  :						Optional[int]=-2			,					lowerCAmelCase__  :						List[Any]=-1	)       ->	List[Any]:

            '''simple docstring'''




            if s == d:
                 return []
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            if s == -2:
                 _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			s

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if visited.count(node[1]	) < 1:
                                if node[1] == d:
                                     visited.append(lowerCAmelCase__	)
                                     return visited
                                else:
                                     stack.append(node[1]	)
                                     visited.append(node[1]	)
                                     _UpperCamelCase							       =			node[1]
                                     break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return visited





       def snake_case__		(				self  :						List[Any]			,					lowerCAmelCase__  :						str=-1	)       ->	str:

            '''simple docstring'''




            if c == -1:
                 _UpperCamelCase							       =			floor(random() * 10000	) + 10
            for i in range(lowerCAmelCase__	):
                 # every vertex has max 100 edges
                 for _ in range(floor(random() * 102	) + 1	):
                      _UpperCamelCase							       =			floor(random() * c	) + 1
                      if n != i:
                           self.add_pair(lowerCAmelCase__			,					lowerCAmelCase__			,					1	)





       def snake_case__		(				self  :						List[Any]			,					lowerCAmelCase__  :						Optional[Any]=-2	)       ->	str:

            '''simple docstring'''




            _UpperCamelCase							       =			deque()
            _UpperCamelCase							       =			[]
            if s == -2:
                 _UpperCamelCase							       =			list(self.graph	)[0]
            d.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            while d:
                 _UpperCamelCase							       =			d.popleft()
                 if len(self.graph[s]	) != 0:
                      for node in self.graph[s]:
                           if visited.count(node[1]	) < 1:
                                d.append(node[1]	)
                                visited.append(node[1]	)
            return visited





       def snake_case__		(				self  :						Dict			,					lowerCAmelCase__  :						int	)       ->	List[str]:

            '''simple docstring'''




            return len(self.graph[u]	)





       def snake_case__		(				self  :						int	)       ->	List[str]:

            '''simple docstring'''




            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			-2
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			s
            _UpperCamelCase							       =			False
            _UpperCamelCase							       =			set()

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if (
                               visited.count(node[1]	) > 0
                               and node[1] != parent
                               and indirect_parents.count(node[1]	) > 0
                               and not on_the_way_back
                           ):
                                _UpperCamelCase							       =			len(lowerCAmelCase__	) - 1
                                while len_stack >= 0:
                                     if stack[len_stack] == node[1]:
                                          anticipating_nodes.add(node[1]	)
                                          break
                                     else:
                                          anticipating_nodes.add(stack[len_stack]	)
                                          len_stack -= 1
                           if visited.count(node[1]	) < 1:
                                stack.append(node[1]	)
                                visited.append(node[1]	)
                                _UpperCamelCase							       =			node[1]
                                break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      _UpperCamelCase							       =			True
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			False
                      indirect_parents.append(lowerCAmelCase__	)
                      _UpperCamelCase							       =			s
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return list(lowerCAmelCase__	)





       def snake_case__		(				self  :						Union[str, Any]	)       ->	Union[str, Any]:

            '''simple docstring'''




            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			list(self.graph	)[0]
            stack.append(lowerCAmelCase__	)
            visited.append(lowerCAmelCase__	)
            _UpperCamelCase							       =			-2
            _UpperCamelCase							       =			[]
            _UpperCamelCase							       =			s
            _UpperCamelCase							       =			False
            _UpperCamelCase							       =			set()

            while True:
                 # check if there is any non isolated nodes
                 if len(self.graph[s]	) != 0:
                      _UpperCamelCase							       =			s
                      for node in self.graph[s]:
                           if (
                               visited.count(node[1]	) > 0
                               and node[1] != parent
                               and indirect_parents.count(node[1]	) > 0
                               and not on_the_way_back
                           ):
                                _UpperCamelCase							       =			len(lowerCAmelCase__	) - 1
                                while len_stack_minus_one >= 0:
                                     if stack[len_stack_minus_one] == node[1]:
                                          anticipating_nodes.add(node[1]	)
                                          break
                                     else:
                                          return True
                           if visited.count(node[1]	) < 1:
                                stack.append(node[1]	)
                                visited.append(node[1]	)
                                _UpperCamelCase							       =			node[1]
                                break

            # check if all the children are visited
                 if s == ss:
                      stack.pop()
                      _UpperCamelCase							       =			True
                      if len(lowerCAmelCase__	) != 0:
                           _UpperCamelCase							       =			stack[len(lowerCAmelCase__	) - 1]
                 else:
                      _UpperCamelCase							       =			False
                      indirect_parents.append(lowerCAmelCase__	)
                      _UpperCamelCase							       =			s
                      _UpperCamelCase							       =			ss

                 # check if se have reached the starting point
                 if len(lowerCAmelCase__	) == 0:
                      return False





       def snake_case__		(				self  :						Optional[int]	)       ->	Any:

            '''simple docstring'''




            return list(self.graph	)





       def snake_case__		(				self  :						str			,					lowerCAmelCase__  :						Dict=-2			,					lowerCAmelCase__  :						Optional[Any]=-1	)       ->	List[Any]:

            '''simple docstring'''




            _UpperCamelCase							       =			time()
            self.dfs(lowerCAmelCase__			,					lowerCAmelCase__	)
            _UpperCamelCase							       =			time()
            return end - begin







       def snake_case__		(				self  :						str			,					lowerCAmelCase__  :						Union[str, Any]=-2	)       ->	Optional[int]:

            '''simple docstring'''




            _UpperCamelCase							       =			time()
            self.bfs(lowerCAmelCase__	)
            _UpperCamelCase							       =			time()
            return end - begin




from typing import TYPE_CHECKING

from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_tf_available, is_torch_available


_lowercase:	Any       			=		{'''configuration_swin''': ['''SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''SwinConfig''', '''SwinOnnxConfig''']}


try:
				if not is_torch_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				_lowercase:	str       			=		[
				    '''SWIN_PRETRAINED_MODEL_ARCHIVE_LIST''',
				    '''SwinForImageClassification''',
				    '''SwinForMaskedImageModeling''',
				    '''SwinModel''',
				    '''SwinPreTrainedModel''',
				    '''SwinBackbone''',
				]

try:
				if not is_tf_available():
								raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
				pass
else:
				_lowercase:	str       			=		[
				    '''TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST''',
				    '''TFSwinForImageClassification''',
				    '''TFSwinForMaskedImageModeling''',
				    '''TFSwinModel''',
				    '''TFSwinPreTrainedModel''',
				]

if TYPE_CHECKING:
				from .configuration_swin import SWIN_PRETRAINED_CONFIG_ARCHIVE_MAP, SwinConfig, SwinOnnxConfig

				try:
								if not is_torch_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .modeling_swin import (
								    SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
								    SwinBackbone,
								    SwinForImageClassification,
								    SwinForMaskedImageModeling,
								    SwinModel,
								    SwinPreTrainedModel,
								)

				try:
								if not is_tf_available():
												raise OptionalDependencyNotAvailable()
				except OptionalDependencyNotAvailable:
								pass
				else:
								from .modeling_tf_swin import (
								    TF_SWIN_PRETRAINED_MODEL_ARCHIVE_LIST,
								    TFSwinForImageClassification,
								    TFSwinForMaskedImageModeling,
								    TFSwinModel,
								    TFSwinPreTrainedModel,
								)

else:
				import sys

				_lowercase:	Tuple       			=		_LazyModule(__name__, globals()['''__file__'''], _import_structure, module_spec=__spec__)






