Define Linked list, add, delete and traverse a Linked list. Difference between Singly and Doubly LL.

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A linked list is a data structure where each element points to the next element in the sequence. Adding, deleting, and traversing a linked list involves manipulating these pointers.

Linked list: a data structure where each element (node) has a reference to the next element
Add to linked list: create a new node and update the pointer of the last node to point to the new node
Delete from linked list: update the pointer of the previous node to skip the node to be deleted
Traverse linked list: start from the head node and follow the pointers to visit each node
Singly LL: each node points to the next node (e.g. 1 -> 2 -> 3)
Doubly LL: each node points to both the next and previous nodes (e.g. 1 <-> 2 <-> 3)

Define Linked list, add, delete and traverse a Linked list. Difference between Singly and Doubly LL.

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