In this article we will learn about DLLs and then we will go through different methods of reversing a doubly linked list. Reverse Linked List is a linked list created to form a linked list by inverting the links within the list. The number of nodes in the list is in the range 0, 5000.-5000 < Node. Example 1 : Input: head 1,2,3,4,5 Output: 5,4,3,2,1 Example 2 : Input: head 1,2 Output: 2,1 Example 3 : Input: head Output: Constraints. Suppose we are given a Doubly Linked List (DLL) and we need to reverse it so that the pointer currently pointing to the head of the list will point to the tail of the DLL. Given the head of a singly linked list, reverse the list, and return the reversed list.
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