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



class 		UpperCamelCase__  :
   def __init__(self			: Dict       ):
    __a			:  List[str]		    =  {}
   def 				lowerCAmelCase      (self			: int ,    snake_case_			: List[Any] ,    snake_case_			: int ,    snake_case_			: Dict=1       ):
    if self.graph.get(snake_case_       ):
     if self.graph[u].count([w, v]       ) == 0:
      self.graph[u].append([w, v]       )
    else:
     __a			:  Union[str, Any]		    =  [[w, v]]
    if not self.graph.get(snake_case_       ):
     __a			:  Optional[int]		    =  []
   def 				lowerCAmelCase      (self			: Union[str, Any]       ):
    return list(self.graph       )
   def 				lowerCAmelCase      (self			: List[str] ,    snake_case_			: List[str] ,    snake_case_			: Tuple       ):
    if self.graph.get(snake_case_       ):
     for _ in self.graph[u]:
      if _[1] == v:
       self.graph[u].remove(snake_case_       )
   def 				lowerCAmelCase      (self			: Any ,    snake_case_			: List[Any]=-2 ,    snake_case_			: Union[str, Any]=-1       ):
    if s == d:
     return []
    __a			:  Tuple		    =  []
    __a			:  Optional[int]		    =  []
    if s == -2:
     __a			:  str		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  Optional[Any]		    =  s

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

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

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return visited
   def 				lowerCAmelCase      (self			: str ,    snake_case_			: List[Any]=-1       ):
    if c == -1:
     __a			:  Optional[int]		    =  floor(random() * 1_0_0_0_0       ) + 1_0
    for i in range(snake_case_       ):
     # every vertex has max 100 edges
     for _ in range(floor(random() * 1_0_2       ) + 1       ):
      __a			:  int		    =  floor(random() * c       ) + 1
      if n != i:
       self.add_pair(snake_case_ ,    snake_case_ ,    1       )
   def 				lowerCAmelCase      (self			: str ,    snake_case_			: Any=-2       ):
    __a			:  Optional[Any]		    =  deque()
    __a			:  str		    =  []
    if s == -2:
     __a			:  Tuple		    =  list(self.graph       )[0]
    d.append(snake_case_       )
    visited.append(snake_case_       )
    while d:
     __a			:  Tuple		    =  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 				lowerCAmelCase      (self			: str ,    snake_case_			: List[Any]       ):
    __a			:  List[Any]		    =  0
    for x in self.graph:
     for y in self.graph[x]:
      if y[1] == u:
       count += 1
    return count
   def 				lowerCAmelCase      (self			: List[Any] ,    snake_case_			: Union[str, Any]       ):
    return len(self.graph[u]       )
   def 				lowerCAmelCase      (self			: Optional[int] ,    snake_case_			: int=-2       ):
    __a			:  int		    =  []
    __a			:  str		    =  []
    if s == -2:
     __a			:  Optional[int]		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  Dict		    =  s
    __a			:  Tuple		    =  []

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

            # check if all the children are visited
     if s == ss:
      sorted_nodes.append(stack.pop()       )
      if len(snake_case_       ) != 0:
       __a			:  Optional[Any]		    =  stack[len(snake_case_       ) - 1]
     else:
      __a			:  List[Any]		    =  ss

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return sorted_nodes
   def 				lowerCAmelCase      (self			: int       ):
    __a			:  str		    =  []
    __a			:  List[str]		    =  []
    __a			:  Union[str, Any]		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  Optional[int]		    =  -2
    __a			:  int		    =  []
    __a			:  Tuple		    =  s
    __a			:  Dict		    =  False
    __a			:  Union[str, Any]		    =  set()

    while True:
     # check if there is any non isolated nodes
     if len(self.graph[s]       ) != 0:
      __a			:  Union[str, Any]		    =  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
       ):
        __a			:  Optional[int]		    =  len(snake_case_       ) - 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]       )
        __a			:  str		    =  node[1]
        break

            # check if all the children are visited
     if s == ss:
      stack.pop()
      __a			:  Optional[Any]		    =  True
      if len(snake_case_       ) != 0:
       __a			:  str		    =  stack[len(snake_case_       ) - 1]
     else:
      __a			:  Optional[Any]		    =  False
      indirect_parents.append(snake_case_       )
      __a			:  List[Any]		    =  s
      __a			:  Optional[Any]		    =  ss

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return list(snake_case_       )
   def 				lowerCAmelCase      (self			: Union[str, Any]       ):
    __a			:  Optional[int]		    =  []
    __a			:  str		    =  []
    __a			:  List[str]		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  List[str]		    =  -2
    __a			:  Optional[int]		    =  []
    __a			:  List[Any]		    =  s
    __a			:  str		    =  False
    __a			:  Tuple		    =  set()

    while True:
     # check if there is any non isolated nodes
     if len(self.graph[s]       ) != 0:
      __a			:  Optional[Any]		    =  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
       ):
        __a			:  List[Any]		    =  len(snake_case_       ) - 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]       )
        __a			:  Optional[int]		    =  node[1]
        break

            # check if all the children are visited
     if s == ss:
      stack.pop()
      __a			:  Optional[Any]		    =  True
      if len(snake_case_       ) != 0:
       __a			:  Optional[int]		    =  stack[len(snake_case_       ) - 1]
     else:
      __a			:  List[Any]		    =  False
      indirect_parents.append(snake_case_       )
      __a			:  Tuple		    =  s
      __a			:  Any		    =  ss

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return False
   def 				lowerCAmelCase      (self			: str ,    snake_case_			: List[str]=-2 ,    snake_case_			: Optional[Any]=-1       ):
    __a			:  Dict		    =  time()
    self.dfs(snake_case_ ,    snake_case_       )
    __a			:  Any		    =  time()
    return end - begin







   def 				lowerCAmelCase      (self			: str ,    snake_case_			: Union[str, Any]=-2       ):
    __a			:  List[Any]		    =  time()
    self.bfs(snake_case_       )
    __a			:  Optional[Any]		    =  time()
    return end - begin





class 		UpperCamelCase__  :
   def __init__(self			: Dict       ):
    __a			:  Optional[int]		    =  {}
   def 				lowerCAmelCase      (self			: int ,    snake_case_			: Union[str, Any] ,    snake_case_			: str ,    snake_case_			: Optional[int]=1       ):
    # check if the u exists
    if self.graph.get(snake_case_       ):
     # 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
     __a			:  Dict		    =  [[w, v]]
    # add the other way
    if self.graph.get(snake_case_       ):
     # 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
     __a			:  Optional[Any]		    =  [[w, u]]
   def 				lowerCAmelCase      (self			: Dict ,    snake_case_			: Optional[Any] ,    snake_case_			: List[str]       ):
    if self.graph.get(snake_case_       ):
     for _ in self.graph[u]:
      if _[1] == v:
       self.graph[u].remove(snake_case_       )
        # the other way round
    if self.graph.get(snake_case_       ):
     for _ in self.graph[v]:
      if _[1] == u:
       self.graph[v].remove(snake_case_       )
   def 				lowerCAmelCase      (self			: str ,    snake_case_			: int=-2 ,    snake_case_			: List[str]=-1       ):
    if s == d:
     return []
    __a			:  Optional[Any]		    =  []
    __a			:  List[str]		    =  []
    if s == -2:
     __a			:  Union[str, Any]		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  Optional[int]		    =  s

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

            # check if all the children are visited
     if s == ss:
      stack.pop()
      if len(snake_case_       ) != 0:
       __a			:  Optional[int]		    =  stack[len(snake_case_       ) - 1]
     else:
      __a			:  List[str]		    =  ss

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return visited
   def 				lowerCAmelCase      (self			: List[str] ,    snake_case_			: List[Any]=-1       ):
    if c == -1:
     __a			:  Dict		    =  floor(random() * 1_0_0_0_0       ) + 1_0
    for i in range(snake_case_       ):
     # every vertex has max 100 edges
     for _ in range(floor(random() * 1_0_2       ) + 1       ):
      __a			:  List[str]		    =  floor(random() * c       ) + 1
      if n != i:
       self.add_pair(snake_case_ ,    snake_case_ ,    1       )
   def 				lowerCAmelCase      (self			: int ,    snake_case_			: Optional[int]=-2       ):
    __a			:  Any		    =  deque()
    __a			:  str		    =  []
    if s == -2:
     __a			:  Union[str, Any]		    =  list(self.graph       )[0]
    d.append(snake_case_       )
    visited.append(snake_case_       )
    while d:
     __a			:  Optional[int]		    =  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 				lowerCAmelCase      (self			: List[Any] ,    snake_case_			: Optional[Any]       ):
    return len(self.graph[u]       )
   def 				lowerCAmelCase      (self			: List[str]       ):
    __a			:  Optional[int]		    =  []
    __a			:  List[str]		    =  []
    __a			:  Optional[int]		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  Any		    =  -2
    __a			:  Union[str, Any]		    =  []
    __a			:  List[Any]		    =  s
    __a			:  Optional[Any]		    =  False
    __a			:  List[str]		    =  set()

    while True:
     # check if there is any non isolated nodes
     if len(self.graph[s]       ) != 0:
      __a			:  int		    =  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
       ):
        __a			:  List[str]		    =  len(snake_case_       ) - 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]       )
        __a			:  str		    =  node[1]
        break

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

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return list(snake_case_       )
   def 				lowerCAmelCase      (self			: Optional[int]       ):
    __a			:  Any		    =  []
    __a			:  Optional[int]		    =  []
    __a			:  Tuple		    =  list(self.graph       )[0]
    stack.append(snake_case_       )
    visited.append(snake_case_       )
    __a			:  str		    =  -2
    __a			:  List[str]		    =  []
    __a			:  Union[str, Any]		    =  s
    __a			:  Any		    =  False
    __a			:  Optional[int]		    =  set()

    while True:
     # check if there is any non isolated nodes
     if len(self.graph[s]       ) != 0:
      __a			:  Any		    =  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
       ):
        __a			:  Dict		    =  len(snake_case_       ) - 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]       )
        __a			:  int		    =  node[1]
        break

            # check if all the children are visited
     if s == ss:
      stack.pop()
      __a			:  List[Any]		    =  True
      if len(snake_case_       ) != 0:
       __a			:  str		    =  stack[len(snake_case_       ) - 1]
     else:
      __a			:  int		    =  False
      indirect_parents.append(snake_case_       )
      __a			:  List[str]		    =  s
      __a			:  str		    =  ss

     # check if se have reached the starting point
     if len(snake_case_       ) == 0:
      return False
   def 				lowerCAmelCase      (self			: List[Any]       ):
    return list(self.graph       )
   def 				lowerCAmelCase      (self			: str ,    snake_case_			: Optional[Any]=-2 ,    snake_case_			: Dict=-1       ):
    __a			:  int		    =  time()
    self.dfs(snake_case_ ,    snake_case_       )
    __a			:  Union[str, Any]		    =  time()
    return end - begin







   def 				lowerCAmelCase      (self			: Union[str, Any] ,    snake_case_			: Union[str, Any]=-2       ):
    __a			:  List[str]		    =  time()
    self.bfs(snake_case_       )
    __a			:  Optional[int]		    =  time()
    return end - begin


from .glue import GlueDataset, GlueDataTrainingArguments
from .language_modeling import (
    LineByLineTextDataset,
    LineByLineWithRefDataset,
    LineByLineWithSOPTextDataset,
    TextDataset,
    TextDatasetForNextSentencePrediction,
)
from .squad import SquadDataset, SquadDataTrainingArguments
