Four is magic: Difference between revisions

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One hundred fifteen quattuorvigintillion seven hundred ninety-two trevigintillion eighty-nine duovigintillion two hundred thirty-seven unvigintillion three hundred sixteen vigintillion one hundred ninety-five novemdecillion four hundred twenty-three octodecillion five hundred seventy septendecillion nine hundred eighty-five sexdecillion eight quindecillion six hundred eighty-seven quattuordecillion nine hundred seven tredecillion eight hundred fifty-three duodecillion two hundred sixty-nine undecillion nine hundred eighty-four decillion six hundred sixty-five nonillion six hundred forty octillion five hundred sixty-four septillion thirty-nine sextillion four hundred fifty-seven quintillion five hundred eighty-four quadrillion seven trillion nine hundred thirteen billion one hundred twenty-nine million six hundred thirty-nine thousand nine hundred thirty-six is eight hundred sixty-nine, eight hundred sixty-nine is twenty-four, twenty-four is eleven, eleven is six, six is three, three is five, five is four, four is magic.</pre>
One hundred fifteen quattuorvigintillion seven hundred ninety-two trevigintillion eighty-nine duovigintillion two hundred thirty-seven unvigintillion three hundred sixteen vigintillion one hundred ninety-five novemdecillion four hundred twenty-three octodecillion five hundred seventy septendecillion nine hundred eighty-five sexdecillion eight quindecillion six hundred eighty-seven quattuordecillion nine hundred seven tredecillion eight hundred fifty-three duodecillion two hundred sixty-nine undecillion nine hundred eighty-four decillion six hundred sixty-five nonillion six hundred forty octillion five hundred sixty-four septillion thirty-nine sextillion four hundred fifty-seven quintillion five hundred eighty-four quadrillion seven trillion nine hundred thirteen billion one hundred twenty-nine million six hundred thirty-nine thousand nine hundred thirty-six is eight hundred sixty-nine, eight hundred sixty-nine is twenty-four, twenty-four is eleven, eleven is six, six is three, three is five, five is four, four is magic.</pre>


=={{header|Python}}==
Python 3 version. Should work for integers up to at least 10^3003. It can be extended easily to arbitrary integers by adding to the numbers dict.

<lang python>import random
from collections import OrderedDict

numbers = { # taken from https://en.wikipedia.org/wiki/Names_of_large_numbers#cite_ref-a_14-3
1: 'one',
2: 'two',
3: 'three',
4: 'four',
5: 'five',
6: 'six',
7: 'seven',
8: 'eight',
9: 'nine',
10: 'ten',
11: 'eleven',
12: 'twelve',
13: 'thirteen',
14: 'fourteen',
15: 'fifteen',
16: 'sixteen',
17: 'seventeen',
18: 'eighteen',
19: 'nineteen',
20: 'twenty',
30: 'thirty',
40: 'forty',
50: 'fifty',
60: 'sixty',
70: 'seventy',
80: 'eighty',
90: 'ninety',
100: 'hundred',
1000: 'thousand',
10 ** 6: 'million',
10 ** 9: 'billion',
10 ** 12: 'trillion',
10 ** 15: 'quadrillion',
10 ** 18: 'quintillion',
10 ** 21: 'sextillion',
10 ** 24: 'septillion',
10 ** 27: 'octillion',
10 ** 30: 'nonillion',
10 ** 33: 'decillion',
10 ** 36: 'undecillion',
10 ** 39: 'duodecillion',
10 ** 42: 'tredecillion',
10 ** 45: 'quattuordecillion',
10 ** 48: 'quinquadecillion',
10 ** 51: 'sedecillion',
10 ** 54: 'septendecillion',
10 ** 57: 'octodecillion',
10 ** 60: 'novendecillion',
10 ** 63: 'vigintillion',
10 ** 66: 'unvigintillion',
10 ** 69: 'duovigintillion',
10 ** 72: 'tresvigintillion',
10 ** 75: 'quattuorvigintillion',
10 ** 78: 'quinquavigintillion',
10 ** 81: 'sesvigintillion',
10 ** 84: 'septemvigintillion',
10 ** 87: 'octovigintillion',
10 ** 90: 'novemvigintillion',
10 ** 93: 'trigintillion',
10 ** 96: 'untrigintillion',
10 ** 99: 'duotrigintillion',
10 ** 102: 'trestrigintillion',
10 ** 105: 'quattuortrigintillion',
10 ** 108: 'quinquatrigintillion',
10 ** 111: 'sestrigintillion',
10 ** 114: 'septentrigintillion',
10 ** 117: 'octotrigintillion',
10 ** 120: 'noventrigintillion',
10 ** 123: 'quadragintillion',
10 ** 153: 'quinquagintillion',
10 ** 183: 'sexagintillion',
10 ** 213: 'septuagintillion',
10 ** 243: 'octogintillion',
10 ** 273: 'nonagintillion',
10 ** 303: 'centillion',
10 ** 306: 'uncentillion',
10 ** 309: 'duocentillion',
10 ** 312: 'trescentillion',
10 ** 333: 'decicentillion',
10 ** 336: 'undecicentillion',
10 ** 363: 'viginticentillion',
10 ** 366: 'unviginticentillion',
10 ** 393: 'trigintacentillion',
10 ** 423: 'quadragintacentillion',
10 ** 453: 'quinquagintacentillion',
10 ** 483: 'sexagintacentillion',
10 ** 513: 'septuagintacentillion',
10 ** 543: 'octogintacentillion',
10 ** 573: 'nonagintacentillion',
10 ** 603: 'ducentillion',
10 ** 903: 'trecentillion',
10 ** 1203: 'quadringentillion',
10 ** 1503: 'quingentillion',
10 ** 1803: 'sescentillion',
10 ** 2103: 'septingentillion',
10 ** 2403: 'octingentillion',
10 ** 2703: 'nongentillion',
10 ** 3003: 'millinillion'
}
numbers = OrderedDict(sorted(numbers.items(), key=lambda t: t[0], reverse=True))


def string_representation(i: int) -> str:
"""
Return the english string representation of an integer
"""
if i == 0:
return 'zero'

words = ['negative'] if i < 0 else []
working_copy = abs(i)

for key, value in numbers.items():
if key <= working_copy:
times = int(working_copy / key)

if key >= 100:
words.append(string_representation(times))

words.append(value)
working_copy -= times * key

if working_copy == 0:
break

return ' '.join(words)


def next_phrase(i: int):
"""
Generate all the phrases
"""
while not i == 4: # Generate phrases until four is reached
str_i = string_representation(i)
len_i = len(str_i)

yield str_i, 'is', string_representation(len_i)

i = len_i

# the last phrase
yield string_representation(i), 'is', 'magic'


def magic(i: int) -> str:
phrases = []

for phrase in next_phrase(i):
phrases.append(' '.join(phrase))

return f'{", ".join(phrases)}.'.capitalize()


if __name__ == '__main__':

for j in (random.randint(0, 10 ** 3) for i in range(5)):
print(j, ':\n', magic(j), '\n')

for j in (random.randint(-10 ** 24, 10 ** 24) for i in range(2)):
print(j, ':\n', magic(j), '\n')</lang>

{{out}}
<pre style="width:98%;overflow:wrap;">475 :
Four hundred seventy five is twenty five, twenty five is eleven, eleven is six, six is three, three is five, five is four, four is magic.

968 :
Nine hundred sixty eight is twenty four, twenty four is eleven, eleven is six, six is three, three is five, five is four, four is magic.

304 :
Three hundred four is eighteen, eighteen is eight, eight is five, five is four, four is magic.

544 :
Five hundred forty four is twenty three, twenty three is twelve, twelve is six, six is three, three is five, five is four, four is magic.

394 :
Three hundred ninety four is twenty five, twenty five is eleven, eleven is six, six is three, three is five, five is four, four is magic.

-49587779907680717664396 :
Negative forty nine sextillion five hundred eighty seven quintillion seven hundred seventy nine quadrillion nine hundred seven trillion six hundred eighty billion seven hundred seventeen million six hundred sixty four thousand three hundred ninety six is two hundred fifty one, two hundred fifty one is twenty one, twenty one is ten, ten is three, three is five, five is four, four is magic.

874143425855745733896030 :
Eight hundred seventy four sextillion one hundred forty three quintillion four hundred twenty five quadrillion eight hundred fifty five trillion seven hundred forty five billion seven hundred thirty three million eight hundred ninety six thousand thirty is two hundred fifty three, two hundred fifty three is twenty three, twenty three is twelve, twelve is six, six is three, three is five, five is four, four is magic. </pre>



=={{header|REXX}}==
=={{header|REXX}}==
Retrieved from "https://rosettacode.org/wiki/Four_is_magic"