dot_product.rb

#!/usr/bin/env ruby
# by Jeffrey Matthias

def max_dot_product(a, b)
  # your code here
end

if __FILE__ == $0
  # in the Ruby implementation, n isn't used for anything
  n = gets.chomp.to_i
  a = gets.chomp.split.map(&:to_i)
  b = gets.chomp.split.map(&:to_i)
  puts "#{max_dot_product(a, b)}"
end