53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
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######################################################################
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# If the numbers 1 to 5 are written out in words: one, two, three, four, five,
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# then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.
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#
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# If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?
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#
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#
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# NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23
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# letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out
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# numbers is in compliance with British usage.
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######################################################################
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ones = ["ONE", "TWO", "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "EIGHT", "NINE"]
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special_tens = ["TEN", "ELEVEN", "TWELVE", "THIRTEEN", "FOURTEEN", "FIFTEEN", "SIXTEEN", "SEVENTEEN", "EIGHTEEN",
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"NINETEEN"]
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tens = ["TWENTY", "THIRTY", "FORTY", "FIFTY", "SIXTY", "SEVENTY", "EIGHTY", "NINETY"]
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hundreds = ["ONEHUNDREDAND", "TWOHUNDREDAND", "THREEHUNDREDAND", "FOURHUNDREDAND", "FIVEHUNDREDAND", "SIXHUNDREDAND",
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"SEVENHUNDREDAND", "EIGHTHUNDREDAND", "NINEHUNDREDAND"]
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letter_count = 0
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for one in ones:
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letter_count += len(one)
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for ten in special_tens:
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letter_count += len(ten)
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for ten in tens:
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letter_count += len(ten)
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for one in ones:
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letter_count += len(one) + len(ten)
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for hundred in hundreds:
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letter_count += len(hundred) - 3
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for one in ones:
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letter_count += len(hundred) + len(one)
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for ten in special_tens:
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letter_count += len(hundred) + len(ten)
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for ten in tens:
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letter_count += len(hundred) + len(ten)
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for one in ones:
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letter_count += len(hundred) + len(ten) + len(one)
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letter_count += len("ONETHOUSAND")
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print(letter_count)
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# Solution: 21124
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