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Singly Linked List Visualizer

STEM Interactive Visual Learning Program at TEC-Bridge AI

List Setup

Tip: Singly Linked List supports unidirectional traversal with only 'next' pointers

List Operations

List Visualization

Operation Steps

How to Use

  1. Setup: Enter values separated by commas or click "Random" to generate a list
  2. Traverse: Click "Traverse" to visit each node sequentially from head to end
  3. Search: Enter a value and click "Search" to find its position in the list
  4. Insert: Enter position and value, then click "Insert" to add a new node
  5. Delete: Enter position and click "Delete" to remove a node
  6. Reset: Click "Reset" to restore the original list and clear all operations

Colors: Orange = Current Node, Yellow (bright) = Processing Node

Note: Each node in a singly linked list has data and a 'next' pointer to the following node for unidirectional traversal.

Singly Linked List Concept

Singly Linked List is a linear data structure where elements are stored in nodes, and each node contains data and a pointer to the next node.

Key Characteristics:

  • Dynamic size (grows/shrinks during runtime)
  • Unidirectional traversal (forward only)
  • Each node has data and next pointer
  • Head pointer points to first node
  • Last node's next points to NULL
  • Efficient at insertion/deletion at head
  • O(n) access time for random elements

Purpose & Applications

Why use Singly Linked Lists?

  • Dynamic memory allocation
  • Efficient insertion/deletion at head
  • Memory efficient (only one pointer per node)
  • No memory waste
  • Flexible size management
  • Simpler implementation than doubly linked lists

Common Applications:

  • Implementation of stacks and queues
  • Hash table collision resolution (chaining)
  • Image viewer (previous/next image navigation)
  • Social media feed (linked content)
  • Adjacency list representation of graphs
  • Memory management in operating systems

Time & Space Complexity

Operation Time Complexity Space Complexity
Access O(n) O(1)
Search O(n) O(1)
Insert at Head O(1) O(1)
Insert at Position O(n) O(1)
Delete at Head O(1) O(1)
Delete at Position O(n) O(1)
Traverse O(n) O(1)

Code Implementation