Snippet

project_euler/22.rb

Code:

# Project Euler Problem 22: Names Scores

# https://projecteuler.net/problem=22

require_relative './helpers.rb'

# 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.

def score(str)
    str.chars.map { |c| c.ord - 64 }.sum
end

def solve(names)
    names.sort.map.with_index { |name, i| score(name) * (i + 1) }.sum
end

puts solve(get_dataset(problem: 22)[0].gsub('"', '').split(','))

Output:

871198282