Long Link Chain

A long ring chain refers to a circular linked list composed of multiple nodes. Each node has a pointer pointing to the next node. Different from ordinary linked lists, the tail node pointer of a long ring chain points to a certain node in the linked list, forming a ring.
Long-link chains can be used to solve certain problems, such as the Joseph problem. In the Joseph problem, there are n people in a circle, starting from a certain person, and counting each m people out of the queue until there is only one person left. This process can be easily simulated by using a long chain. Every time you find the person you want to list, delete it from the linked list, and then continue to count.
Long ring chains can also be used to implement circular queues. A circular queue is a special queue that can insert elements at the end of the queue and delete elements from the head of the queue. This circular effect can be easily achieved using a long ring chain. When the tail pointer of the queue points to the tail node of the linked list, point it to the head node of the linked list, forming a ring.
The long ring chain can be implemented using the data structure of a linked list. Each node contains a data field and a pointer field. When operating a linked list, you need to pay attention to handling loops to avoid infinite loops or pointers pointing to wrong nodes.