![circular linked list circular linked list](https://etutorialspoint.com/images/ds/circular-linked-list.png)
It is convenient for the operating system to use a circular list so that when it reaches the end of the list it can cycle around to the front of the list. For example, when multiple applications are running on a PC, it is common for the operating system to put the running applications on a list and then cycle through them, giving each of them a slice of time to execute, and then making them wait while the CPU is given to another application.
![circular linked list circular linked list](https://cdncontribute.geeksforgeeks.org/wp-content/uploads/CircularLinkeList.png)
If the list is not empty then we define two pointers curr and prev and initialize the pointer curr with the head node.If the list is empty we will simply return.Keep the address of the node next to the last node in tempģ) D elete any node from the circular linked list: We will be given a node and our task is to delete that node from the circular linked list.Locate the node before the last node (let it be temp).Nodes are traversed quickly from the first to the last. The last value should be NULLA node always points to another node, so NULL assignment is not necessary.Īny node can be set as the starting point.Deletion in a circular linked list:ġ) Delete the node only if it is the only node in the circular linked list: ISRO CS Syllabus for Scientist/Engineer ExamĪuxiliary Space: O(1) 2.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.No new functionality will be added to this module.
#CIRCULAR LINKED LIST SERIES#
Issues and Pull RequestsĪs this is part of series of tutorials I'm writing, only bug fixes will be accepted. There are frequently more concise ways of implementing the details of this class, but the more concise ways are difficult for newcomers who are unfamiliar with linked lists as a concept or JavaScript as a whole. That is intentional, as the primary use of this module is intended to be for educational purposes.
#CIRCULAR LINKED LIST CODE#
You may find the code style of this module to be overly verbose with a lot of comments. circularValues ( ) // remove an item at the given index and return the data that was removed let data = list. indexOf ( "foo" ) // convert to an array using iterators let array1 = let array2 = // create a circular iterator to keep iterating over values const iterator = list. size // get the index of a value let index = list. get ( 0 ) // get the number of items let count = list. insertAfter ( "baz", 1 ) // get the value at an index let value = list. Const list = new CircularLinkedList ( ) // add an item to the end list.