Review the AI

Positive Sum

Label each solution: correct, correct but needlessly slow, or buggy. The buggy one is off by a single character.

Problem

positive_sum(values): return the sum of the positive numbers in the list.

Solution A

1def positive_sum(values):

2 return sum(v for v in values if v > 0)

Solution B

1def positive_sum(values):

2 total = 0

3 for v in values:

4 if v > 0:

5 total =+ v

6 return total

Solution C

1def positive_sum(values):

2 total = 0

3 for v in sorted(values):

4 if v > 0:

5 total += v

6 return total