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  1. Fibonacci = proc { |n| n <= 1 ? n : Fibonacci[n-1] + Fibonacci[n-2] }
  2.  
  3. p Fibonacci[7]
  4.  
Success #stdin #stdout 0.01s 7408KB
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13
https://ideone.com/eXu69l
language:
Ruby (ruby 2.5.5)
created:
11 years ago
visibility:
public

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