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karmiclychee/cruncher.rb

Created July 10, 2013 04:59
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cruncher.rb
class NumberCruncher
def initialize(input)
@initial_string = input
end
def crunch(working=@initial_string)
p working = working.to_s
sum = working.split('').map(&:to_i).inject(:+)
sum <= 9 ? p(sum.to_s) : crunch(sum)
end
end
NumberCruncher.new(ARGV.first).crunch
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