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damianesteban/gist:8ceca217e085a18173d8

Forked from mikelikesbikes/gist:1007228
Last active August 29, 2015 14:11
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gistfile1.rb
def fib(n)
(0..n).inject([1,0]) { |(a,b), _| [b, a+b] }[0]
end
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