22.rb

require_relative 'lib/helper'

# Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing over five-thousand first names,
# begin by sorting it into alphabetical order. Then working out the alphabetical value for each name,
# multiply this value by its alphabetical position in the list to obtain a name score.

# For example, when the list is sorted into alphabetical order, COLIN,
# which is worth 3 + 15 + 12 + 9 + 14 = 53, is the 938th name in the list.
# So, COLIN would obtain a score of 938 × 53 = 49714.

# What is the total of all the name scores in the file?

def score(name, pos)
  pos * name.split('').map(&:ord).map { |i| i - 64 }.reduce(&:+)
end

def simple
  names = sort(eval("[#{File.read('data/names.txt')}]"))

  names.each.with_index.reduce(0) do |sum, (name, i)|
    sum + score(name, i + 1)
  end
end

run do
  simple
end