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  1. def f(n)
  2.   if n < 0
  3.     (1 - 2 * ((1 - n) % 2)) * f(-n)
  4.   elsif n == 0 || n == 1
  5.     n
  6.   else
  7.     f(n - 1) + f(n - 2)
  8.   end
  9. end
  10. def l(n)
  11.   f(n - 1) + f(n + 1)
  12. end
  13. puts l(-256)
Runtime error #stdin #stdout 0.18s 159232KB
comments (?)
stdin 
Standard input is empty
stdout 
./prog.factor

1: def f(n)
      ^
No word named “def” found in current vocabulary search path
https://ideone.com/6vQ8C
language:
Factor (factor-0.93)
created:
14 years ago
visibility:
public

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