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Mar 30th, 2020
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  1. def zrus_dva_posledni(p):
  2. if p is None:
  3. return None
  4. if p.dalsi is None:
  5. return None
  6. if p.dalsi.dalsi is None:
  7. return None
  8.  
  9. uzel = p
  10. naslednik = p.dalsi
  11. while naslednik.dalsi:
  12. if naslednik.dalsi.dalsi is None:
  13. naslednik.dalsi = None
  14. uzel.dalsi = None
  15. else:
  16. uzel = uzel.dalsi
  17. naslednik = naslednik.dalsi
  18. return p
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