Linked Lists
A linked list is a linear data structure where elements, called nodes, are linked
together in a sequence using pointers. Unlike arrays, the elements are not stored
in contiguous memory locations. This structure provides flexibility in memory
allocation and enables efficient insertion and deletion operations.
1. Key Features
Dynamic Size: The size of the linked list can grow or shrink as needed,
making it more flexible compared to arrays.
Non-Contiguous Memory: Nodes are scattered throughout memory and
connected via pointers.
Sequential Access: Traversal must follow the links from one node to the
next.
2. Structure of a Node
Each node in a linked list consists of:
1. Data: The value stored in the node.
2. Pointer: A reference (or pointer) to the next node in the sequence.
In some variants, a node may also have:
A pointer to the previous node (in doubly linked lists).
Additional pointers for specific use cases (e.g., random pointers in certain
applications).
A linked list is a linear data structure where elements, called nodes, are linked
together in a sequence using pointers. Unlike arrays, the elements are not stored
in contiguous memory locations. This structure provides flexibility in memory
allocation and enables efficient insertion and deletion operations.
1. Key Features
Dynamic Size: The size of the linked list can grow or shrink as needed,
making it more flexible compared to arrays.
Non-Contiguous Memory: Nodes are scattered throughout memory and
connected via pointers.
Sequential Access: Traversal must follow the links from one node to the
next.
2. Structure of a Node
Each node in a linked list consists of:
1. Data: The value stored in the node.
2. Pointer: A reference (or pointer) to the next node in the sequence.
In some variants, a node may also have:
A pointer to the previous node (in doubly linked lists).
Additional pointers for specific use cases (e.g., random pointers in certain
applications).
