<ul><li>Doubly linked lists involve two pointers - next and prev - where null prev signifies the head of the list.</li><li>For insertion at the end, the tail pointer must be updated along with setting prev pointer for the new node. Time complexity: O(1).</li><li>Deletion at the end involves setting the tail pointer to the node before the current tail. Time complexity: O(1).</li><li>Access in doubly linked lists allows traversal in both directions with a time complexity of O(n).</li></ul>

Doubly Linked Lists - DSA Notes 📝

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