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  1. Prepare
  2. Data Structures
  3. Linked Lists
  4. Reverse a doubly linked list
  5. Discussions

Reverse a doubly linked list

  • ankurk007
     + 3 comments

    Python3:

    def Reverse(head):

    curr = None

    while head:

        nxt = head.next
        curr = head
        head.next = head.prev
        head.prev = nxt
        head = nxt
    
    return curr