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Back to Linked Lists Overview

Interactive Linked List Simulation

Explore linked list operations with step-by-step algorithm visualization. Watch how pointers connect nodes dynamically.

Linked List Visualization

Head:

de-1

10

ID: de-1

next

23

ID: de-2

next

45

ID: de-3

next

67

ID: de-4

NULL

Insertion Operations

Search Operations

Watch the algorithm traverse through each node sequentially to find the target value.

List Operations

🎨 Animation Legend

Normal Node

Currently Traversing

Found/Highlighted

New Node

💡 Learning Notes

Key Observations:

• Nodes are connected through pointer references
• Insertion at beginning is always O(1)
• Traversal is required for most operations
• No direct access to nodes by index
• Memory is allocated dynamically
• Each operation shows step-by-step execution

Algorithm Complexity:

• Insert at beginning: O(1) - Direct head update
• Insert at end: O(n) - Traverse to last node
• Insert at position: O(n) - Traverse to position
• Search: O(n) - Linear traversal required
• Delete: O(n) - Find node then remove
• Space: O(n) - Linear space per node

💭 Practice Exercises:

• Insert nodes at different positions and observe pointer updates
• Compare search time with different list sizes
• Watch how deletion affects the remaining connections

• Notice the step-by-step traversal process
• Try searching for non-existent values
• Observe how the head pointer changes with operations

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