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jin/sum_of_differences.rb

Created October 30, 2014 05:53
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sum_of_differences.rb
#!/usr/bin/env ruby
def sum_of_differences(arr)
total = 0
arr.each_cons(2) do |x, y|
total += (x - y).abs
end
total
end
puts sum_of_differences [143, 86, 1470, 913, 1774, 948, 1509, 1022, 1750, 130]
puts sum_of_differences [143, 130, 86, 913, 948, 1022, 1470, 1509, 1750, 1774]
puts sum_of_differences [143, 913, 948, 1022, 1470, 1509, 1750, 1774, 130, 86]
puts sum_of_differences [143, 913, 948, 1022, 1470, 1509, 1750, 1774, 86, 130]
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