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  1. enum_ = (lambda	it,
  2. 				zip_ = lambda xs, ys: map(lambda x, y=iter(ys): (x, next(y)), xs),
  3. 				count_ = iter(
  4. 						lambda x=[-1]: x.__setitem__(-1, x[-1] + 1) or x[-1],
  5. 						None
  6. 						)
  7. 				: zip_(count_, it)
  8. 		)
  9.  
  10. print(*enum_(range(2, 20, 2)))
Success #stdin #stdout 0.03s 9440KB
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Standard input is empty
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(0, 2) (1, 4) (2, 6) (3, 8) (4, 10) (5, 12) (6, 14) (7, 16) (8, 18)
https://ideone.com/hINHdH
language:
Python 3 (python  3.12)
created:
10 years ago
visibility:
public

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