A way of counting multiple values at once

readme.md

MultiCounter

Usage:

counter = MultiCounter.new(3)

counter.add(12,2,10)
counter.add(9,9,4)

counter.values
# => [21, 11, 14]

multi_counter.rb

class MultiCounter
  def initialize(n)
    @counters = [0]*n
  end
  
  def add(*values)
    values.each_with_index do |v, i|
      @counters[i] += v
    end
  end
  
  def values
    @counters
  end
end