import os
import sys
from contextlib import contextmanager


# Windows only
if os.name == "nt":
					import ctypes
					import msvcrt  # noqa
					class     lowerCAmelCase_     (       ctypes.Structure ):
												# _fields is a specific attr expected by ctypes
												UpperCAmelCase				   =     [("size", ctypes.c_int), ("visible", ctypes.c_byte)]
def 					_snake_case	(  ):
					if os.name == "nt":
										_UpperCamelCase			     =     CursorInfo()
										_UpperCamelCase			     =     ctypes.windll.kernelaa.GetStdHandle(-11						)
										ctypes.windll.kernelaa.GetConsoleCursorInfo(__snake_case  ,     ctypes.byref(__snake_case						)						)
										_UpperCamelCase			     =     False
										ctypes.windll.kernelaa.SetConsoleCursorInfo(__snake_case  ,     ctypes.byref(__snake_case						)						)
					elif os.name == "posix":
										sys.stdout.write('''\033[?25l'''						)
										sys.stdout.flush()
def 					_snake_case	(  ):
					if os.name == "nt":
										_UpperCamelCase			     =     CursorInfo()
										_UpperCamelCase			     =     ctypes.windll.kernelaa.GetStdHandle(-11						)
										ctypes.windll.kernelaa.GetConsoleCursorInfo(__snake_case  ,     ctypes.byref(__snake_case						)						)
										_UpperCamelCase			     =     True
										ctypes.windll.kernelaa.SetConsoleCursorInfo(__snake_case  ,     ctypes.byref(__snake_case						)						)
					elif os.name == "posix":
										sys.stdout.write('''\033[?25h'''						)
										sys.stdout.flush()







@contextmanager
def 					_snake_case	(  ):
					try:
										hide_cursor()
										yield
					finally:
										show_cursor()

from __future__ import annotations

import math

import numpy as np
from numpy.linalg import norm
def 					_snake_case	(  __snake_case  ,     __snake_case						):
					return math.sqrt(sum(pow(a - b  ,     2						) for a, b in zip(__snake_case  ,     __snake_case						)						)						)
def 					_snake_case	(  __snake_case  ,     __snake_case						):

					if dataset.ndim != value_array.ndim:
										_UpperCamelCase			     =     (
										    '''Wrong input data\'s dimensions... '''
										    f"""dataset : {dataset.ndim}, value_array : {value_array.ndim}"""
										)
										raise ValueError(__snake_case						)

					try:
										if dataset.shape[1] != value_array.shape[1]:
															_UpperCamelCase			     =     (
															    '''Wrong input data\'s shape... '''
															    f"""dataset : {dataset.shape[1]}, value_array : {value_array.shape[1]}"""
															)
															raise ValueError(__snake_case						)
					except IndexError:
										if dataset.ndim != value_array.ndim:
															raise TypeError('''Wrong shape'''						)

					if dataset.dtype != value_array.dtype:
										_UpperCamelCase			     =     (
										    '''Input data have different datatype... '''
										    f"""dataset : {dataset.dtype}, value_array : {value_array.dtype}"""
										)
										raise TypeError(__snake_case						)

					_UpperCamelCase			     =     []

					for value in value_array:
										_UpperCamelCase			     =     euclidean(__snake_case  ,     dataset[0]						)
										_UpperCamelCase			     =     dataset[0].tolist()

										for dataset_value in dataset[1:]:
															_UpperCamelCase			     =     euclidean(__snake_case  ,     __snake_case						)

															if dist > temp_dist:
																				_UpperCamelCase			     =     temp_dist
																				_UpperCamelCase			     =     dataset_value.tolist()

										answer.append([vector, dist]						)

					return answer
def 					_snake_case	(  __snake_case  ,     __snake_case						):
					return np.dot(__snake_case  ,     __snake_case						) / (norm(__snake_case						) * norm(__snake_case						))


if __name__ == "__main__":
					import doctest

					doctest.testmod()
