Linked List Node
A linked list node represents the fundamental building block of a linked list data structure. Each node in a linked list typically contains two elements: the data value and a data reference (or data pointer) to the next node in the sequence. In the case of a doubly linked list, each node also holds a reference to the previous node, enabling bidirectional traversal of the list. The structure of a node allows for dynamic data management, as elements can be easily inserted or removed without reallocating or reorganizing the entire data structure. The last node in a linked list points to null, indicating the end of the list. The simplicity and flexibility of linked list nodes make them a versatile choice for implementing queues, stacks, and other more complex data structures.