Dynamic Linear Structure • Singly Linked Chain

Singly Linked List Visualization

A linear collection of data nodes linked together through unidirectional pointer addresses. Each node encapsulates a data value and a reference pointer to the successor node.

Abstract Data Type Properties

Unlike contiguous arrays, linked list nodes are allocated dynamically in heap memory and chained via explicit memory pointers. The sequence originates at the Head reference and terminates with a NULL pointer.

Traversal
Unidirectional (Head → Tail)
Insert at Head
O(1) Constant Time
Search / Random Access
O(n) Linear Time

Operations Panel

1. List Capacity & Reset
2. Input Parameters

3. Insertions & Deletions
4. Search, Reorder & Inspection
Singly Linked Pointer Chain
List is empty

Educational Reference

Memory Pointer Representation

Each node occupies distinct non-contiguous memory addresses (e.g. ABC001) and stores an explicit reference to its successor node.

Insertion Mechanics

Prepend requires only redirecting the new node's next pointer to the old head and updating head in O(1) time without element shifting.

Deletion Mechanics

Deleting a node at index k requires linking node k-1 directly to node k+1, bypassing the target node.

Array vs Linked List Tradeoffs

Linked lists avoid resizing costs and wasted capacity but introduce pointer memory overhead and lose O(1) random indexing capability.