A list with various numbers of the node containing data and address pointer and the list start and finish at the same first node is known as a circular linked list. this list forms a circle and having a common start and endpoint.
Inside this blog post, we are going to see hat is a circular linked list? What are the types of a linked list? What is the principle of a circular linked list? How do you check a linked list is circular or not?
As in the case of the linked list, we have seen that the first node is pointed by an external pointer and in the last node we have a null value in the field of the address.
We should be very careful while traversing the circular linked list as there is a chance to be stuck in an infinite loop if the end node is unable to detect. To avoid this situation we can set an external pointer at the starting node and now used as the stop point or endpoint of the list.
As an alternative method, we can make a header node to our first node and can keep a special value in the info field that will not be connected with other info data in the list, or will not have any relation with another data field. And we will halt traversing the circular linked list once this header node is reached.
What is a circular linked list?
It is just like a single linked list where we have the address of the first node in the last node address field. This way it turns out to be a circular linked list.
What are the types of a linked list?
Mainly there are three types of linked list, singly linked list, doubly linked list, and circular linked list.
What is the principle of a circular linked list?
As we know that in the circular linked list the last node has the address of the first node. Both singly and doubly linked lists can be a circular linked list. The main principle of the circular linked list is to solve the time-sharing problem by the OS.
How do you check a linked list is circular or not?
You can check it by writing a simple function where we can match the address of the first node in the address field of the last node. If the program returns the true value then it would be a circular linked list else it is not.
Advantages of a circular linked list?
There are many advantages using a circular linked list, fews are listed below.
It is useful for implementation of queue.
Any node can be starting point.
This list is best suited for the application where the process repeats and go around.
Doubly circular linked list is used for advanced data structure.
Circular linked list in data structure is a list that forms a circle shape while traversing the data element using this list. This circular list has a common starting and ending point which is, in general, is the very first node or header node, which may also be filled with some special data to detect it as a header node where we can stop our traversing.
Using this blog we have gone through What is a circular linked list? What are the types of a linked list? What is the principle of a circular linked list? How do you check a linked list is circular or not? Advantages of a circular linked list?.
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