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  1. def inplace(a: list):
  2.     for i in range(0, len(a) - len(a) % 2, 2):
  3.         a[i], a[i + 1] = a[i + 1], a[i]
  4.  
  5.  
  6. for upper in (10, 11):
  7.     a = list(range(1, upper))
  8.  
  9.     aa = a.copy()
  10.     inplace(aa)
  11.     print(aa)
  12.  
Success #stdin #stdout 0.04s 9360KB
comments (?)
stdin 
Standard input is empty
stdout 
[2, 1, 4, 3, 6, 5, 8, 7, 9]
[2, 1, 4, 3, 6, 5, 8, 7, 10, 9]
https://ideone.com/EhNEhT
language:
Python 3 nbc (python 3.7.3)
created:
7 years ago
visibility:
public

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