





from typing import Any





class       lowerCAmelCase__:






       '''simple docstring'''


       def __init__(   self     ,    __lowerCamelCase				)      ->  Optional[Any]:
            _SCREAMING_SNAKE_CASE							:						List[str]         =				data
            _SCREAMING_SNAKE_CASE							:						List[Any]         =				None





class       lowerCAmelCase__:






       '''simple docstring'''


       def __init__(   self				)      ->  Optional[Any]:
            _SCREAMING_SNAKE_CASE							:						Tuple         =				None




       def      UpperCamelCase_      (   self				)      ->  str:
            _SCREAMING_SNAKE_CASE							:						Dict         =				self.head
            while temp is not None:
                 print(temp.data     ,    end=" "				)
                 _SCREAMING_SNAKE_CASE							:						Optional[int]         =				temp.next
            print()




       def      UpperCamelCase_      (   self     ,    __lowerCamelCase				)      ->  int:
            _SCREAMING_SNAKE_CASE							:						List[Any]         =				Node(__lowerCamelCase				)
            _SCREAMING_SNAKE_CASE							:						int         =				self.head
            _SCREAMING_SNAKE_CASE							:						Optional[Any]         =				new_node







       def      UpperCamelCase_      (   self     ,    __lowerCamelCase     ,    __lowerCamelCase				)      ->  Any:
            if node_data_a == node_data_a:
                 return
            else:
                 _SCREAMING_SNAKE_CASE							:						List[Any]         =				self.head
                 while node_a is not None and node_a.data != node_data_a:
                      _SCREAMING_SNAKE_CASE							:						int         =				node_a.next

                 _SCREAMING_SNAKE_CASE							:						Tuple         =				self.head
                 while node_a is not None and node_a.data != node_data_a:
                      _SCREAMING_SNAKE_CASE							:						Dict         =				node_a.next

                 if node_a is None or node_a is None:
                      return

                 _SCREAMING_SNAKE_CASE     ,      _SCREAMING_SNAKE_CASE							:						Optional[int]         =				node_a.data, node_a.data


if __name__ == "__main__":
       UpperCamelCase__  			=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()

'''simple docstring'''
from math import log

from scipy.constants import Boltzmann, physical_constants

lowercase__											=3_00  # TEMPERATURE (unit = K)






def      UpperCamelCase_				(      A__  ,      A__  ,      A__  ,      ):

	if donor_conc <= 0:
		raise ValueError("""Donor concentration should be positive"""						)
	elif acceptor_conc <= 0:
		raise ValueError("""Acceptor concentration should be positive"""						)
	elif intrinsic_conc <= 0:
		raise ValueError("""Intrinsic concentration should be positive"""						)
	elif donor_conc <= intrinsic_conc:
		raise ValueError(
		    """Donor concentration should be greater than intrinsic concentration"""						)
	elif acceptor_conc <= intrinsic_conc:
		raise ValueError(
		    """Acceptor concentration should be greater than intrinsic concentration"""						)
	else:
		return (
		    Boltzmann
		    * T
		    * log((donor_conc * acceptor_conc) / intrinsic_conc**2						)
		    / physical_constants["electron volt"][0]
		)


if __name__ == "__main__":
		import doctest

		doctest.testmod()
