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  1. def fiboTail(n):
  2. 	a, b = 0, 1
  3. 	while True:
  4. 	 if n > 1:
  5. 	 	n, a, b = n-1, b, a+b
  6. 	 elif n == 1:
  7. 	 	return b
  8. 	 elif n == 0:
  9. 	 	return a
  10. 	 else:
  11. 	 	raise IndexError
  12.  
  13. print("Result: %d" % fiboTail(80))
Success #stdin #stdout 0.02s 27624KB
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Standard input is empty
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Result: 23416728348467685
https://ideone.com/AR4CHf
language:
Python 3 (python  3.12)
created:
8 years ago
visibility:
public

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