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Python Linked List Quiz: Question 10 
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Python Linked List Quiz: Question 10
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Consider the following function that takes reference to head of a Doubly Linked List as parameter. Assume that a node of doubly linked list has previous pointer as prev and next pointer as next.
def fun(head_ref):
temp = None
current = head_ref[0]
while current is not None:
temp = current.prev
current.prev = current.next
current.next = temp
current = current.prev
if temp is not None:
head_ref[0] = temp.prev
What action will be performed by the following code?
Set the value of head_ref to next;
Set the value of head_ref to NULL;
Set the value of head_ref to current;
Set the value of head_ref to prev;
This question is part of this quiz :
Python Linked List QuizShare your thoughts in the comments
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