[Bug Busters] python 7

[Sriram-2706]

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[bughunt-bot]

Team Name: Bug Busters
File Name: python 7
Line Number: [33, 21]
Bug Description: sum variable shadowing the built-in function sum.

dummyHead.next = None as it's not necessary since dummyHead.next is already initialized as None.

Solution: Renamed the variable sum to sum_val to avoid shadowing the built-in function sum.
Removed the line dummyHead.next = None as it's not necessary since dummyHead.next is already initialized as None.

[bughunt-bot]

Bug Hunt Evaluation:
Answer: ((0,),)
Correctness: 0/1
Points: 0/100