Link List : Introduction to List and Linked Lists

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The document provides an introduction to lists and linked lists, highlighting that lists can be implemented using arrays or linked lists. It explains that linked lists consist of nodes with a data field and a pointer to the next node, allowing non-adjacent memory storage. Moreover, it covers the structure of a single linked list, where each node connects to the next via a single link.

Unit 4
LINKED
LIST
www.bcanotesnepal.com

Introduction to List and Linked Lists
• List is a term used to refer to a linear collection of data items. A List can be
implemented either by using arrays or linked lists.
• Usually, a large block of memory is occupied by an array which may not be
in use and it is difficult to increase the size of an array.
• Another way of storing a list is to have each element in a list contain a field
called a link or pointer, which contains the address of the next element in
the list.
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• The successive elements in the list need not occupy adjacent space in
memory. This type of data structure is called a linked list.
2

Linked List
• It is the most commonly used data structure used to store similar
type of data in memory.
• The elements of a linked list are not stored in adjacent memory
locations as in arrays.
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• It is a linear collection of data elements, called nodes, where
the linear order is implemented by means of pointers.
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SPecial Thanks To: Prashant sir. 3

Linked List
4
• Ina linear or single-linked list, a node is connected to the next node by
a single link.
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• A node in this type of linked list contains two types of fields
• data: which holds a list element
• next: which stores a link (i.e. pointer) to the next node in the list.
,.. I

Linked List
• The structure defined for a single linked list is implemented as follows:
struct Node{
int
info;
struct Node * next;
5
• The structure declared for linear linked list holds two members
• An integer type variable 'data' which holds the elements and
• Another type 'node', which has next, which stores the address of the next
node in the list.
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Link List : Introduction to List and Linked Lists

1. Unit 4 LINKED LIST www.bcanotesnepal.com

2. Introduction to List and Linked Lists • List is a term used to refer to a linear collection of data items. A List can be implemented either by using arrays or linked lists. • Usually, a large block of memory is occupied by an array which may not be in use and it is difficult to increase the size of an array. • Another way of storing a list is to have each element in a list contain a field called a link or pointer, which contains the address of the next element in the list. www.bcanotesnepal.com • The successive elements in the list need not occupy adjacent space in memory. This type of data structure is called a linked list. 2

3. Linked List • It is the most commonly used data structure used to store similar type of data in memory. • The elements of a linked list are not stored in adjacent memory locations as in arrays. www.bcanotesnepal.com • It is a linear collection of data elements, called nodes, where the linear order is implemented by means of pointers. www.bcanotesnepal.com SPecial Thanks To: Prashant sir. 3

4. Linked List 4 • Ina linear or single-linked list, a node is connected to the next node by a single link. www.bcanotesnepal.com • A node in this type of linked list contains two types of fields • data: which holds a list element • next: which stores a link (i.e. pointer) to the next node in the list. ,.. I

5. Linked List • The structure defined for a single linked list is implemented as follows: struct Node{ int info; struct Node * next; 5 • The structure declared for linear linked list holds two members • An integer type variable 'data' which holds the elements and • Another type 'node', which has next, which stores the address of the next node in the list. www.bcanotesnepal.com

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