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  1. import  itertools 
  2. import  functools 
  3. import  operator
  4. def sumP(arg) :
  5. 	if sum(1 for e in arg if e < 0) < 2:
  6. 		return -1
  7. 	z = itertools.dropwhile(lambda x: x>=0,arg)
  8. 	next(z)
  9. 	return functools.reduce(operator.add, itertools.takewhile(lambda x: x>=0,z), 0)
  10. print(sumP([1,2,3, -1,4,5,6,7,8,9]))
  11. print(sumP([1,2,3, -1,4,5,6,-1, 7,8,9]))
Success #stdin #stdout 0.01s 10368KB
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stdin
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Standard input is empty
stdout
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-1
15
https://ideone.com/chV7sI
language:
Python 3 (python  3.12)
created:
8 years ago
visibility:
public

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