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  1. n = int(input())
  2.  
  3. wynik = 1
  4. if n%2 == 0:
  5. 	d = 2
  6. else:
  7. 	d = 1
  8. while d <= n:
  9. 	wynik *= d
  10. 	d += 2
  11. print(wynik)
Success #stdin #stdout 0.03s 63148KB
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https://ideone.com/KsfT1o
language:
Python (PyPy 2.7.13)
created:
4 hours ago
visibility:
public

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