39. User defined lists - Part A
User-defined lists serve as an illustration of how to implement a linked list data structure in Python. The chapter explores creating nodes, appending, inserting, and deleting nodes from a list while following recursive and iterative approaches. Additionally, the importance of understanding node connections and memory management when performing these operations is emphasized.
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Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- A linked list consists of nodes, each storing a value and pointing to the next node.
- An empty list is represented as a single node with its value and pointer set to none.
- Appending, inserting, and deleting nodes involves careful management of pointers to maintain the integrity of the list structure.
Key Concepts
- -- Node
- A basic unit of a data structure, which in the context of a linked list contains a value and a reference to the next node.
- -- Linked List
- A data structure consisting of a sequence of nodes where each node points to the next node in the sequence.
- -- Append
- The operation of adding a new node with a specified value at the end of the linked list.
- -- Insert
- The operation of adding a new node at the beginning or a specified position of the linked list.
- -- Delete
- The operation of removing a node from the linked list based on a specified value.
Additional Learning Materials
Supplementary resources to enhance your learning experience.