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  1. f = dict()
  2. f[0] = f[1] = 1
  3. val[1] = 1
  4. i = 2
  5. while i < 5000:
  6. 	t = (f[i-1] * i) % 1000000009
  7. 	if val.has_key(t):
  8. 		print val[t]
  9. 		break
  10. 	val[t] = i
  11. 	f[i] = t
  12. 	i+=1
  13.  
Runtime error #stdin #stdout 0.02s 5852KB
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https://ideone.com/h11vm
language:
Python 3 (python  3.12)
created:
14 years ago
visibility:
public

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