What is a circular linked list in C++?

What is a circular linked list in C++?

A circular linked list is a variation of a linked list where the last node points back to the first node, forming a circle.

How do I implement a circular linked list in C++?

You can implement it by creating a Node structure and maintaining a pointer to the last node, which points to the head.

What are the advantages of using a circular linked list?

Circular linked lists allow for efficient traversal and can be useful in applications like round-robin scheduling.

Can you show me a simple code example?

Sure! Here's a basic implementation:

struct Node {
    int data;
    Node* next;
};

class CircularLinkedList {
    Node* last;
public:
    CircularLinkedList() : last(nullptr) {}
    void insert(int value) {
        Node* newNode = new Node{value, nullptr};
        if (!last) {
            last = newNode;
            last->next = last;
        } else {
            newNode->next = last->next;
            last->next = newNode;
            last = newNode;
        }
    }
};

This code defines a simple circular linked list with an insert function.