Most linked lists eventually end. You keep following nodes and finally reach: null But what if the list never ended? What if the last node connected back to the first node? That's exactly what a Circular Linked List does. 1. What is a Circular Linked List? A Circular Linked List is a linked list where: the last node points back to the first node. Visual: [10] → [20] → [30] ↑ ↓ └─────────────┘ Instead of: 30 → null we have: 30 → head 2. Why Use Circular Linked Lists? Circular structures are useful whenever operations repeat continuously. Examples: Round Robin CPU Scheduling Music Playlist Loops Multiplayer Game Turns Resource Sharing Systems 3. Insert at Head Idea Create a new node and reconnect the last node to the new head.…