






'''simple docstring'''





from __future__ import annotations

from random import choice





def 	lowerCAmelCase_		(lowercase__						:       List[Any]       )		->    List[Any]:


				'''simple docstring'''




				return choice(_lowerCamelCase       )





def 	lowerCAmelCase_		(lowercase__						:       Dict     ,					lowercase__						:       str       )		->    Union[str, Any]:


				'''simple docstring'''




				lowerCAmelCase__      			=						random_pivot(_lowerCamelCase       )

				# partition based on pivot
				# linear time
				lowerCAmelCase__      			=						[e for e in lst if e < pivot]
				lowerCAmelCase__      			=						[e for e in lst if e > pivot]

				# if we get lucky, pivot might be the element we want.
				# we can easily see this:
				# small (elements smaller than k)
				# + pivot (kth element)
				# + big (elements larger than k)
				if len(_lowerCamelCase       ) == k - 1:
								return pivot
				# pivot is in elements bigger than k
				elif len(_lowerCamelCase       ) < k - 1:
								return kth_number(_lowerCamelCase     ,					k - len(_lowerCamelCase       ) - 1       )
				# pivot is in elements smaller than k
				else:
								return kth_number(_lowerCamelCase     ,					_lowerCamelCase       )


if __name__ == "__main__":
			import doctest

			doctest.testmod()













from __future__ import annotations





def 	lowerCAmelCase_		(lowercase__						:       list[int]       )		->    bool:


				'''simple docstring'''




				return len(set(lowercase__       )       ) == len(lowercase__       )


if __name__ == "__main__":
			import doctest

			doctest.testmod()





