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https://github.com/TheAlgorithms/Ruby
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40 lines
1.4 KiB
Ruby
40 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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# Problem 22
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# Using names.txt (right click and 'Save Link/Target As...'),
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# a 46K text file containing over five-thousand first names,
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# begin by sorting it into alphabetical order.
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# Then working out the alphabetical value for each name,
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# multiply this value by its alphabetical position in the list to obtain a name score.
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# For example, when the list is sorted into alphabetical order,
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# COLIN, which is worth 3 + 15 + 12 + 9 + 14 = 53,
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# is the 938th name in the list. So, COLIN would obtain a score of 938 * 53 = 49714.
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# What is the total of all the name scores in the file?
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# reading the contents of the file
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file_contents = File.read('p022_names.txt')
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# replacing the occuerance of \" to '' and spliting the result by ','
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# to get an array of sorted words
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words = file_contents.tr('\"', '').split(',').sort
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# this method calculates the worth of a word based on the ASCII
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# values of the characters
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def word_worth(word)
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word.chars.sum { |char| char.ord - 'A'.ord + 1 }
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end
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# this method takes the words as an input
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# calls `word_worth` method on each word
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# to that value multiply that with the index of the word in the array
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# add the same to the result
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def total_rank(words)
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result = 0
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words.each_with_index { |word, index| result += word_worth(word) * (index + 1) }
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result
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end
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# outputs total rank on the console
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puts total_rank(words)
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