Let's analyze the given code snippet step-by-step to determine which statement is true:
nums = []
vals = nums[:]
vals.append(1)
nums = []
nums is initialized as an empty list: [].
vals = nums[:]
vals is created as a shallow copy of nums.
Since nums is an empty list, vals will also be an empty list: [].
vals.append(1)
1 is appended to the list vals.
After this operation, vals will be: [1].
Final State of the Lists
nums remains an empty list: [].
vals is now: [1].
Comparing the Lengths
The length of nums is 0.
The length of vals is 1.
Conclusion
vals is longer than nums.
Therefore, the correct statement is:
C. vals is longer than nums
c is the correct answer. we have a swallow copy here so vals is greater since nums is not getting appended but only vals.
upvoted 2 times
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hovnival
1 month, 1 week agochristostz03
5 months, 2 weeks ago