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Circular Queue Data Structure Visualizer

STEM Interactive Visual Learning Program at TEC-Bridge AI

Circular Queue Setup

Circular Queue Operations

Circular Queue Visualization

Operation Steps

How to Use

  1. Setup: Enter capacity and click "Setup" or use "Random" for sample data
  2. Enqueue: Enter a value and click "Enqueue" to add element at rear
  3. Dequeue: Click "Dequeue" to remove element from front
  4. Peek: Click "Peek" to view the front element without removing it
  5. Traverse: Click "Traverse" to visit all elements in circular order
  6. Observe: Watch the circular nature with front/rear pointer movement
  7. Reset: Click "Reset" to restore the original queue state

Colors: Green = Front, Blue = Rear, Orange = Both/Current, Gray = Empty

Circular Queue Concept

Circular Queue is a linear data structure that connects the end back to the beginning, forming a circle.

Key Characteristics:

  • Fixed size with efficient space utilization
  • Front and rear pointers wrap around
  • No memory waste from dequeue operations
  • FIFO principle with circular indexing
  • Prevents queue overflow in continuous operations

Purpose & Applications

Why use Circular Queues?

  • Efficient memory utilization
  • No memory fragmentation
  • Continuous operation support
  • Fixed memory footprint
  • Optimal for buffering systems

Common Applications:

  • CPU scheduling algorithms
  • Memory management systems
  • Traffic light control systems
  • Audio/video streaming buffers
  • Producer-consumer problems

Time & Space Complexity

Operation Time Complexity Space Complexity
Enqueue O(1) O(1)
Dequeue O(1) O(1)
Peek/Front O(1) O(1)
Is Full/Empty O(1) O(1)
Traversal O(n) O(1)

Strengths & Limitations

Strengths:

  • Optimal memory utilization
  • Constant time operations
  • No memory fragmentation
  • Suitable for continuous operations
  • Predictable memory usage

Limitations:

  • Fixed maximum capacity
  • Complex pointer management
  • Overflow handling required
  • No dynamic resizing
  • Implementation complexity

Circular Queue Code Implementation

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