


'''simple docstring'''

from __future__ import annotations

from typing import Generic, TypeVar

__lowercase:		int    						=  TypeVar("T")







class 			UpperCAmelCase			(							Generic[T]):

 def __init__(			self			:						Optional[int],       a_			:						T       ):





    """simple docstring"""



    UpperCamelCase__			    =    data  # Assign data
    UpperCamelCase__			    =    None  # Initialize next as null
    UpperCamelCase__			    =    None  # Initialize prev as null







class 			UpperCAmelCase			(							Generic[T]):

 def __init__(			self			:						Any       ):





    """simple docstring"""



    UpperCamelCase__			    =    None

 def 		lowercase_    (			self			:						int,       a_			:						T       ):





    """simple docstring"""



    if self.head is None:
       UpperCamelCase__			    =    Node(a_       )
    else:
       UpperCamelCase__			    =    Node(a_       )
       UpperCamelCase__			    =    new_node
       UpperCamelCase__			    =    self.head
       UpperCamelCase__			    =    None
       UpperCamelCase__			    =    new_node

 def 		lowercase_    (			self			:						int       ):





    """simple docstring"""



    if self.head is None:
       return None
    else:
       assert self.head is not None
       UpperCamelCase__			    =    self.head.data
       UpperCamelCase__			    =    self.head.next
       if self.head is not None:
          UpperCamelCase__			    =    None
       return temp

 def 		lowercase_    (			self			:						Optional[int]       ):





    """simple docstring"""



    return self.head.data if self.head is not None else None

 def __len__(			self			:						Dict       ):





    """simple docstring"""



    UpperCamelCase__			    =    self.head
    UpperCamelCase__			    =    0
    while temp is not None:
       count += 1
       UpperCamelCase__			    =    temp.next
    return count

 def 		lowercase_    (			self			:						Optional[Any]       ):





    """simple docstring"""



    return self.head is None

 def 		lowercase_    (			self			:						Dict       ):





    """simple docstring"""



    print("stack elements are:"       )
    UpperCamelCase__			    =    self.head
    while temp is not None:
       print(temp.data,       end="->"       )
       UpperCamelCase__			    =    temp.next


# Code execution starts here
if __name__ == "__main__":
       # Start with the empty stack
       __lowercase:		Stack[int]    						=  Stack()

       # Insert 4 at the beginning. So stack becomes 4->None
       print("Stack operations using Doubly LinkedList")
       stack.push(4)

       # Insert 5 at the beginning. So stack becomes 4->5->None
       stack.push(5)

       # Insert 6 at the beginning. So stack becomes 4->5->6->None
       stack.push(6)

       # Insert 7 at the beginning. So stack becomes 4->5->6->7->None
       stack.push(7)

       # Print the stack
       stack.print_stack()

       # Print the top element
       print("\nTop element is ", stack.top())

       # Print the stack size
       print("Size of the stack is ", len(stack))

       # pop the top element
       stack.pop()

       # pop the top element
       stack.pop()

       # two elements have now been popped off
       stack.print_stack()

       # Print True if the stack is empty else False
       print("\nstack is empty:", stack.is_empty())



'''simple docstring'''




from collections import Counter
from functools import total_ordering

from data_structures.heap.heap import Heap





@total_ordering
class _snake_case :
							"""simple docstring"""





							def __init__( self      ,					__A      ,					__A						)  ->None:



											"""simple docstring"""







											__lowerCamelCase		:   List[Any]           =       word
											__lowerCamelCase		:   Optional[Any]           =       count







							def __eq__( self      ,					__A						)  ->bool:



											"""simple docstring"""







											if not isinstance(__A      ,					__A						):
															return NotImplemented
											return self.count == other.count







							def __lt__( self      ,					__A						)  ->bool:



											"""simple docstring"""







											if not isinstance(__A      ,					__A						):
															return NotImplemented
											return self.count < other.count





def 				a_							(    lowercase				,    lowercase     )      ->list[str]:






				'''simple docstring'''

				__lowerCamelCase		:   Heap[WordCount]           =       Heap()
				__lowerCamelCase		:   int           =       Counter(lowercase     )
				heap.build_max_heap(
				    [WordCount(lowercase				,    lowercase     ) for word, count in count_by_word.items()]     )
				return [heap.extract_max().word for _ in range(min(lowercase				,    len(lowercase     )     )     )]


if __name__ == "__main__":
				import doctest

				doctest.testmod()





