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  1. def iterative_sum(lst):
  2.     s = 0
  3.     for i in lst:
  4.         if isinstance(i, list):
  5.             lst += i
  6.         else:
  7.             s += i
  8.     return s
  9.  
  10. def recursive_sum(lst):
  11.     if not isinstance(lst, list):
  12.         return lst
  13.     if lst:
  14.         return recursive_sum(lst[0]) + recursive_sum(lst[1:])
  15.     return 0
  16.  
  17. print(iterative_sum([1, 2, [3, 4], [5, [[6, 7], 8]], 9]))
  18. print(recursive_sum([1, 2, [3, 4], [5, [[6, 7], 8]], 9]))
Success #stdin #stdout 0.03s 9532KB
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stdin 
Standard input is empty
stdout 
45
45
https://ideone.com/AZqYWX
language:
Python 3 (python  3.12)
created:
2 years ago
visibility:
secret

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