




from typing import Any


class     UpperCamelCase_   :

    '''simple docstring'''






    def __init__(      self				:     Tuple ,			UpperCAmelCase__				:     Any)						->List[str]:





           '''simple docstring'''

           A__							=   data
           A__							=   None


class     UpperCamelCase_   :

    '''simple docstring'''






    def __init__(      self				:     Tuple)						->Optional[Any]:





           '''simple docstring'''

           A__							=   None


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





           '''simple docstring'''

           A__							=   self.head
           while temp is not None:
                  print(temp.data ,			end=''' ''')
                  A__							=   temp.next
           print()


    def 	SCREAMING_SNAKE_CASE							(      self				:     str ,			UpperCAmelCase__				:     Any)						->List[str]:





           '''simple docstring'''

           A__							=   Node(UpperCAmelCase__)
           A__							=   self.head
           A__							=   new_node





    def 	SCREAMING_SNAKE_CASE							(      self				:     int ,			UpperCAmelCase__				:     Tuple ,			UpperCAmelCase__				:     List[str])						->Dict:





           '''simple docstring'''

           if node_data_a == node_data_a:
                  return
           else:
                  A__							=   self.head
                  while node_a is not None and node_a.data != node_data_a:
                         A__							=   node_a.next

                  A__							=   self.head
                  while node_a is not None and node_a.data != node_data_a:
                         A__							=   node_a.next

                  if node_a is None or node_a is None:
                         return

                  A__			,							A__							=   node_a.data, node_a.data


if __name__ == "__main__":
  _lowerCamelCase     :		int								=       LinkedList()
  for i in range(5, 0, -1):
    ll.push(i)

  ll.print_list()

  ll.swap_nodes(1, 4)
  print("""After swapping""")
  ll.print_list()








from __future__ import annotations

from collections import Counter
from random import random


class     UpperCamelCase_   :

    '''simple docstring'''






    def __init__(      self				:     Any)						->Optional[Any]:





           '''simple docstring'''

           A__							=   {}


    def 	SCREAMING_SNAKE_CASE							(      self				:     Optional[int] ,			UpperCAmelCase__				:     str)						->None:





           '''simple docstring'''

           A__							=   {}


    def 	SCREAMING_SNAKE_CASE							(      self				:     List[str] ,			UpperCAmelCase__				:     str ,			UpperCAmelCase__				:     str ,			UpperCAmelCase__				:     float)						->None:





           '''simple docstring'''

           if nodea not in self.connections:
                  self.add_node(UpperCAmelCase__)
           if nodea not in self.connections:
                  self.add_node(UpperCAmelCase__)
           A__							=   probability


    def 	SCREAMING_SNAKE_CASE							(      self				:     Optional[int])						->list[str]:





           '''simple docstring'''

           return list(self.connections)





    def 	SCREAMING_SNAKE_CASE							(      self				:     Any ,			UpperCAmelCase__				:     str)						->str:





           '''simple docstring'''

           A__							=   0
           A__							=   random()

           for dest in self.connections[node]:
                  current_probability += self.connections[node][dest]
                  if current_probability > random_value:
                         return dest
           return ""







def SCREAMING_SNAKE_CASE    (	lowercase_			,    lowercase_			,    lowercase_						)       ->	dict[str, int]:



       """simple docstring"""

       A__							=   MarkovChainGraphUndirectedUnweighted()

       for nodea, nodea, probability in transitions:
              graph.add_transition_probability(lowercase_			,    lowercase_			,    lowercase_						)

       A__							=   Counter(graph.get_nodes()						)
       A__							=   start

       for _ in range(lowercase_						):
              A__							=   graph.transition(lowercase_						)
              visited[node] += 1

       return visited


if __name__ == "__main__":
  import doctest

  doctest.testmod()


