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morty0505

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Nov 25th, 2016
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  1. def foldr-right op initial seq:
  2. if not seq:
  3. initial
  4. else:
  5. op(seq[0],foldr-right op, initial, seq[1:])
  6.  
  7. def fold-left op z seq:
  8. if not seq:
  9. z
  10. else:
  11. fold-left op op(z, seq[0]) seq[1:])
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