





'''simple docstring'''

__lowerCAmelCase							:	dict[str, float]			={
    "km/h": 1.0,
    "m/s": 3.6,
    "mph": 1.609344,
    "knot": 1.852,
}

__lowerCAmelCase							:	dict[str, float]			={
    "km/h": 1.0,
    "m/s": 0.277777778,
    "mph": 0.621371192,
    "knot": 0.539956803,
}





def 						UpperCamelCase				(							_lowerCamelCase					:					float						,       _lowerCamelCase					:					str						,       _lowerCamelCase					:					str       ):
    if unit_to not in speed_chart or unit_from not in speed_chart_inverse:
        A__				=			(
            F"Incorrect 'from_type' or 'to_type' value: {unit_from!r}, {unit_to!r}\n"
            F"Valid values are: {', '.join(_lowerCamelCase       )}"
        )
        raise ValueError(_lowerCamelCase       )
    return round(speed * speed_chart[unit_from] * speed_chart_inverse[unit_to]						,       3       )


if __name__ == "__main__":
  import doctest

  doctest.testmod()










'''simple docstring'''

import functools





def 						UpperCamelCase				(							_lowerCamelCase					:					str						,       _lowerCamelCase					:					str       ):
    A__				=			len(_lowerCamelCase       )
    A__				=			len(_lowerCamelCase       )

    @functools.cache
    def min_distance(_lowerCamelCase					:					int						,       _lowerCamelCase					:					int       ) -> int:
        # if first word index is overflow - delete all from the second word
        if indexa >= len_worda:
            return len_worda - indexa
        # if second word index is overflow - delete all from the first word
        if indexa >= len_worda:
            return len_worda - indexa
        A__				=			int(worda[indexa] != worda[indexa]       )  # current letters not identical
        return min(
            1 + min_distance(indexa + 1						,       _lowerCamelCase       )						,       1 + min_distance(_lowerCamelCase						,       indexa + 1       )						,       diff + min_distance(indexa + 1						,       indexa + 1       )						,       )

    return min_distance(0						,       0       )


if __name__ == "__main__":
  import doctest

  doctest.testmod()



