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  1. import ast
  2.  
  3. car = lambda lst: lst[0]  # value
  4. cdr = lambda lst: lst[1]  # next list
  5.  
  6. lst = ast.literal_eval(input())
  7. if lst:
  8.    largest = car(lst)
  9.    while lst is not None:
  10.          if largest < car(lst):
  11.             largest = car(lst)
  12.          lst = cdr(lst)
  13.    print(largest)
Success #stdin #stdout 0.02s 5956KB
comments ()
stdin 
[1, [23, [53, [54, [5, None]]]]]
stdout 
54
https://ideone.com/NuNcV0
language:
Python 3 (python  3.12)
created:
12 years ago
visibility:
secret

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