What is a linked list?

A linked list is a data structure that consists of nodes, where each node contains data and a pointer to the next node in the list.

How do you create a linked list in C?

To create a linked list in C, you need to define a user-defined data type, allocate memory using malloc, and use pointers to connect the nodes.

What is the purpose of the head pointer in a linked list?

The head pointer stores the address of the first node in a linked list, allowing you to traverse the list and access its elements.

How do you dynamically allocate memory in C?

In C, you can dynamically allocate memory using the malloc function, which creates a memory block of the specified size and returns its starting address.

How do you insert a new node in a linked list?

To insert a new node in a linked list, you need to create a new node, update the pointers of the previous and next nodes, and adjust the head pointer if necessary.

Learn Linked List Implementation in C/C++ with User-Defined Data Types | DSA Tutorial

Name: Learn Linked List Implementation in C/C++ with User-Defined Data Types | DSA Tutorial
Uploaded: 2023-04-17 15:13:42
Description: Creating and traversing a linked list with user-defined data types, pointers, and malloc is demonstrated in the video.

This article is a summary of a YouTube video "2.4 Linked List Implementation in C/C++ | Creation and Display | DSA Tutorials" by Jenny's Lectures CS IT

TLDR Creating and traversing a linked list with user-defined data types, pointers, and malloc is demonstrated in the video.

Key insights

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Understanding the basics of linked lists, dynamic memory allocation, pointers, and structures is essential for implementing a singly linked list in C/C++.
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The use of dynamic memory allocation in C/C++ allows for the efficient allocation of memory based on the size of the data type, optimizing memory usage.

Q&A

What is a linked list?

— A linked list is a data structure that consists of nodes, where each node contains data and a pointer to the next node in the list.
How do you create a linked list in C?

— To create a linked list in C, you need to define a user-defined data type, allocate memory using malloc, and use pointers to connect the nodes.
What is the purpose of the head pointer in a linked list?

— The head pointer stores the address of the first node in a linked list, allowing you to traverse the list and access its elements.
How do you dynamically allocate memory in C?

— In C, you can dynamically allocate memory using the malloc function, which creates a memory block of the specified size and returns its starting address.
How do you insert a new node in a linked list?

— To insert a new node in a linked list, you need to create a new node, update the pointers of the previous and next nodes, and adjust the head pointer if necessary.

Timestamped Summary

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00:00
Create a linked list with three nodes using a user-defined data type, a head pointer, and pointers to traverse the list.
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05:25
Allocating memory for a new node with malloc and typecasting it to a pointer to a struct node.
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09:01
Allocating memory and inserting nodes into a linked list is done by creating a node, asking for user input, and using a pointer to access the structure members.
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12:56
Create a new node and update the head pointer to it, access the structure of a node using a pointer.
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15:44
Setting up a new node with a value of 300 in a linked list of two existing nodes requires two pointers and setting the head and temp to the new node.
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20:16
Set temp to new node and add to list if user presses 1, otherwise exit program.
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23:09
Initialize a temp pointer and use a while loop to print the values 5, 4, 8, 9 from user-created nodes.
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26:22
Temp is assigned a value, printed, and then reassigned until it is null, and nodes are created, traversed, and counted.