# Circular Linked List Application & Pros/Cons

## What is a circular linked list?

A circular linked list is similar to the single linked list except that the last node points to the first node in the list. This means that circular linked list is a sequence of elements in which every element has link to its next element in the sequence and the last element has a link to the first element in the sequence.

## Applications of Circular Linked List

A Circular Linked List can be used for the following –

• Circular lists are used in applications where the entire list is accessed one-by-one in a loop.
• It is also used by the Operating system to share time for different users, generally uses a Round-Robin time-sharing mechanism.
• Multiplayer games use a circular list to swap between players in a loop.
• Implementation of Advanced data structures like Fibonacci Heap
• The browser cache which allows you to hit the BACK button
• Undo functionality in Photoshop or Word
• Circular linked lists are used in Round Robin Scheduling
• Circular linked list used Most recent list (MRU LIST)

## Advantage of circular linked list

• Entire list can be traversed from any node of the list.
• It saves time when we have to go to the first node from the last node.
• Its is used for the implementation of queue.
• Reference to previous node can easily be found.
• When we want a list to be accessed in a circle or loop then circular linked list are used.

## Disadvantage of circular linked list

• Circular list are complex as compared to singly linked lists.
• Reversing of circular list is a complex as compared to singly or doubly lists.
• If not traversed carefully, then we could end up in an infinite loop.
• Like singly and doubly lists circular linked lists also doesn’t support direct accessing of elements.

### What is the benefit of a circularly linked list over singly linked list in search applications?

• If your program wants to access items of Linked List over and over again in a loop. Such processes do exist in OS, where some list of system processes must be implemented in loop one by one
• These are round-robin type of OS scheduling algorithms
• Any node can be the starting point since, we can access all nodes from anywhere, unlike a singly linked list where we must only start from the head node if we want to access all nodes.
• The fibonacci heap can be implemented via Circular Linked List

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### Circular Linked List

• Introduction to Circular Linked List
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• Circular Linked List Applications
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• Circular Linked List in –
C | C++ | Java
• Insertion in Circular Linked List –
C | C++ | Java
• Insertion at the beginning–
C | C++ | Java
• Insertion at the end –
C | C++ | Java
• Insertion at nth position –
C | C++ | Java
• Deletion in Circular Linked List –
C | C++ | Java
• Deletion from beginning in Circular Linked List –
C | C++ | Java
• Deletion from nth position in Circular Linked List –
• Deletion from end in Circular Linked List –
C | C++ | Java
• Insertion and Deletion in Circular Linked List – C | C++ | Java
• Split a Circular Linked List in two halves –
C | C++ | Java
• Count nodes in Circular Linked List –
C | C++ | Java
• Sorted Insert In Circular Linked List –
C | C++ | Java
• Insertion in the middle in Circular Linked List –
C | C++ | Java