





"""simple docstring"""






from typing import TYPE_CHECKING

from ...utils import (
    OptionalDependencyNotAvailable,
    _LazyModule,
    is_sentencepiece_available,
    is_tokenizers_available,
    is_torch_available,
)


lowerCAmelCase_			=							{'''configuration_plbart''': ['''PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP''', '''PLBartConfig''']}

try:
    if not is_sentencepiece_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    lowerCAmelCase_			=							['''PLBartTokenizer''']

try:
    if not is_torch_available():
        raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
    pass
else:
    lowerCAmelCase_			=							[
        '''PLBART_PRETRAINED_MODEL_ARCHIVE_LIST''',
        '''PLBartForCausalLM''',
        '''PLBartForConditionalGeneration''',
        '''PLBartForSequenceClassification''',
        '''PLBartModel''',
        '''PLBartPreTrainedModel''',
    ]


if TYPE_CHECKING:
    from .configuration_plbart import PLBART_PRETRAINED_CONFIG_ARCHIVE_MAP, PLBartConfig

    try:
        if not is_sentencepiece_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .tokenization_plbart import PLBartTokenizer

    try:
        if not is_torch_available():
            raise OptionalDependencyNotAvailable()
    except OptionalDependencyNotAvailable:
        pass
    else:
        from .modeling_plbart import (
            PLBART_PRETRAINED_MODEL_ARCHIVE_LIST,
            PLBartForCausalLM,
            PLBartForConditionalGeneration,
            PLBartForSequenceClassification,
            PLBartModel,
            PLBartPreTrainedModel,
        )


else:
    import sys

    lowerCAmelCase_			=							_LazyModule(__name__, globals()['''__file__'''], _import_structure)













"""simple docstring"""






from collections import deque
from math import floor
from random import random
from time import time



class 	lowerCAmelCase					:






       def __init__(   self     ):
              _UpperCAmelCase     =     {}






       def 							__A (   self    ,  a__    ,  a__    ,  a__=1     ):
              if self.graph.get(a__     ):
                     if self.graph[u].count([w, v]     ) == 0:
                            self.graph[u].append([w, v]     )
              else:
                     _UpperCAmelCase     =     [[w, v]]
              if not self.graph.get(a__     ):
                     _UpperCAmelCase     =     []






       def 							__A (   self     ):
              return list(self.graph     )






       def 							__A (   self    ,  a__    ,  a__     ):
              if self.graph.get(a__     ):
                     for _ in self.graph[u]:
                            if _[1] == v:
                                   self.graph[u].remove(a__     )






       def 							__A (   self    ,  a__=-2    ,  a__=-1     ):
              if s == d:
                     return []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              if s == -2:
                     _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     )
                                                 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self    ,  a__=-1     ):
              if c == -1:
                     _UpperCAmelCase     =     floor(random() * 1_00_00     ) + 10
              for i in range(a__     ):
                     # every vertex has max 100 edges
                     for _ in range(floor(random() * 1_02     ) + 1     ):
                            _UpperCAmelCase     =     floor(random() * c     ) + 1
                            if n != i:
                                   self.add_pair(a__    ,  a__    ,  1     )






       def 							__A (   self    ,  a__=-2     ):
              _UpperCAmelCase     =     deque()
              _UpperCAmelCase     =     []
              if s == -2:
                     _UpperCAmelCase     =     list(self.graph     )[0]
              d.append(a__     )
              visited.append(a__     )
              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 							__A (   self    ,  a__     ):
              _UpperCAmelCase     =     0
              for x in self.graph:
                     for y in self.graph[x]:
                            if y[1] == u:
                                   count += 1
              return count






       def 							__A (   self    ,  a__     ):
              return len(self.graph[u]     )






       def 							__A (   self    ,  a__=-2     ):
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              if s == -2:
                     _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self     ):
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     ) - 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     False
                            indirect_parents.append(a__     )
                            _UpperCAmelCase     =     s
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self     ):
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     ) - 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     False
                            indirect_parents.append(a__     )
                            _UpperCAmelCase     =     s
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self    ,  a__=-2    ,  a__=-1     ):
              _UpperCAmelCase     =     time()
              self.dfs(a__    ,  a__     )
              _UpperCAmelCase     =     time()
              return end - begin






       def 							__A (   self    ,  a__=-2     ):
              _UpperCAmelCase     =     time()
              self.bfs(a__     )
              _UpperCAmelCase     =     time()
              return end - begin



class 	lowerCAmelCase					:






       def __init__(   self     ):
              _UpperCAmelCase     =     {}






       def 							__A (   self    ,  a__    ,  a__    ,  a__=1     ):
              # check if the u exists
              if self.graph.get(a__     ):
                     # 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(a__     ):
                     # 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 							__A (   self    ,  a__    ,  a__     ):
              if self.graph.get(a__     ):
                     for _ in self.graph[u]:
                            if _[1] == v:
                                   self.graph[u].remove(a__     )
        # the other way round
              if self.graph.get(a__     ):
                     for _ in self.graph[v]:
                            if _[1] == u:
                                   self.graph[v].remove(a__     )






       def 							__A (   self    ,  a__=-2    ,  a__=-1     ):
              if s == d:
                     return []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              if s == -2:
                     _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     )
                                                 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self    ,  a__=-1     ):
              if c == -1:
                     _UpperCAmelCase     =     floor(random() * 1_00_00     ) + 10
              for i in range(a__     ):
                     # every vertex has max 100 edges
                     for _ in range(floor(random() * 1_02     ) + 1     ):
                            _UpperCAmelCase     =     floor(random() * c     ) + 1
                            if n != i:
                                   self.add_pair(a__    ,  a__    ,  1     )






       def 							__A (   self    ,  a__=-2     ):
              _UpperCAmelCase     =     deque()
              _UpperCAmelCase     =     []
              if s == -2:
                     _UpperCAmelCase     =     list(self.graph     )[0]
              d.append(a__     )
              visited.append(a__     )
              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 							__A (   self    ,  a__     ):
              return len(self.graph[u]     )






       def 							__A (   self     ):
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     ) - 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     False
                            indirect_parents.append(a__     )
                            _UpperCAmelCase     =     s
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self     ):
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     []
              _UpperCAmelCase     =     list(self.graph     )[0]
              stack.append(a__     )
              visited.append(a__     )
              _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(a__     ) - 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(a__     ) != 0:
                                   _UpperCAmelCase     =     stack[len(a__     ) - 1]
                     else:
                            _UpperCAmelCase     =     False
                            indirect_parents.append(a__     )
                            _UpperCAmelCase     =     s
                            _UpperCAmelCase     =     ss

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






       def 							__A (   self     ):
              return list(self.graph     )






       def 							__A (   self    ,  a__=-2    ,  a__=-1     ):
              _UpperCAmelCase     =     time()
              self.dfs(a__    ,  a__     )
              _UpperCAmelCase     =     time()
              return end - begin






       def 							__A (   self    ,  a__=-2     ):
              _UpperCAmelCase     =     time()
              self.bfs(a__     )
              _UpperCAmelCase     =     time()
              return end - begin






