Simple Queue Data Structure Visualizer

STEM Interactive Visual Learning Program at TEC-Bridge AI

Queue Setup

Queue Operations

Queue Visualization

Operation Steps

How to Use

Setup: Enter numbers separated by commas or click "Random" to generate a queue
Enqueue: Enter a value and click "Enqueue" to add element to rear
Dequeue: Click "Dequeue" to remove element from front
Peek: Click "Peek" to view the front element without removing it
Traverse: Click "Traverse" to visit each element from front to rear
Observe: Watch elements being processed with color-coded visualization
Reset: Click "Reset" to restore the original queue and start over

Colors: Orange = Current Element, Green = Found/Success, Blue = New Element, Red = Deleted

Queue Concept

Queue is a linear data structure that follows the First-In-First-Out (FIFO) principle.

Key Characteristics:

FIFO (First In, First Out) ordering
Elements added at rear (enqueue)
Elements removed from front (dequeue)
Two main pointers: front and rear
Sequential access only

Purpose & Applications

Why use Queues?

Fair scheduling (first come, first served)
Buffer for data streams
Breadth-first search algorithms
Process scheduling in OS
Handling requests in web servers

Common Applications:

Print job scheduling
CPU task scheduling
Breadth-first traversal
Handling interrupts
Call center systems

Time & Space Complexity

Operation	Time Complexity	Space Complexity
Enqueue	O(1)	O(1)
Dequeue	O(1)	O(1)
Peek/Front	O(1)	O(1)
Search	O(n)	O(1)
Traversal	O(n)	O(1)

Strengths & Limitations

Strengths:

Simple FIFO implementation
Constant time enqueue/dequeue
Fair ordering guarantee
Memory efficient
Thread-safe variants available

Limitations:

No random access to elements
Fixed size in array implementation
Memory overhead in linked implementation
No priority handling
Sequential access only

Queue Code Implementation

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