Linked lists come in various types, each with its own characteristics and use cases. The main types of linked lists include:
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Singly Linked List:
- In a singly linked list, each node contains a data element and a pointer (or link) to the next node in the sequence.
- The last node’s pointer typically points to null, indicating the end of the list.
- Traversal is only possible in one direction, starting from the head.
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Doubly Linked List:
- In a doubly linked list, each node has a data element, a pointer to the next node, and a pointer to the previous node.
- This bidirectional linking allows for easier traversal in both forward and backward directions.
- The first node’s previous pointer and the last node’s next pointer usually point to null
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Circular Linked List:
- In a circular linked list, the last node’s pointer points back to the first node, creating a circular structure.
- This type allows continuous traversal from any node to any other node in both directions
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Doubly Circular Linked List:
- Combining the features of doubly linked lists and circular linked lists, each node in a doubly circular linked list has a pointer to the next and previous nodes.
- The last node’s next pointer connects to the first node, creating a circular structure, and the first node’s previous pointer connects to the last node.
