




'''simple docstring'''


from __future__ import annotations

from random import choice
def 	snake_case_					(UpperCamelCase :						Dict   ):





							'''simple docstring'''


							return choice(snake_case_   )
def 	snake_case_					(UpperCamelCase :						list[int]				,		UpperCamelCase :						int   ):





							'''simple docstring'''


							_a			  =       random_pivot(snake_case_   )

							# partition based on pivot
							# linear time
							_a			  =       [e for e in lst if e < pivot]
							_a			  =       [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(snake_case_   ) == k - 1:
														return pivot
							# pivot is in elements bigger than k
							elif len(snake_case_   ) < k - 1:
														return kth_number(snake_case_				,		k - len(snake_case_   ) - 1   )
							# pivot is in elements smaller than k
							else:
														return kth_number(snake_case_				,		snake_case_   )


if __name__ == "__main__":
				import doctest

				doctest.testmod()












'''simple docstring'''


import os
import sys
from contextlib import contextmanager


# Windows only
if os.name == "nt":
				import ctypes
				import msvcrt  # noqa

				class     A					(	ctypes.Structure					):
											# _fields is a specific attr expected by ctypes
											lowercase_           =       [('size', ctypes.c_int), ('visible', ctypes.c_byte)]
def 	snake_case_					():





							'''simple docstring'''


							if os.name == "nt":
														_a			  =       CursorInfo()
														_a			  =       ctypes.windll.kernelaa.GetStdHandle(-11   )
														ctypes.windll.kernelaa.GetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
														_a			  =       False
														ctypes.windll.kernelaa.SetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
							elif os.name == "posix":
														sys.stdout.write('''\033[?25l'''   )
														sys.stdout.flush()
def 	snake_case_					():





							'''simple docstring'''


							if os.name == "nt":
														_a			  =       CursorInfo()
														_a			  =       ctypes.windll.kernelaa.GetStdHandle(-11   )
														ctypes.windll.kernelaa.GetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
														_a			  =       True
														ctypes.windll.kernelaa.SetConsoleCursorInfo(UpperCamelCase				,		ctypes.byref(UpperCamelCase   )   )
							elif os.name == "posix":
														sys.stdout.write('''\033[?25h'''   )
														sys.stdout.flush()

@contextmanager
def 	snake_case_					():





							'''simple docstring'''


							try:
														hide_cursor()
														yield
							finally:
														show_cursor()

