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Lecture 78: Introduction To Linked List | Traversal and Insertion in a Linked List

Coder Army・127 minutes read

The Gender List series explains the concept, application, and data structure of gender lists, addressing common problems and providing solutions. The array data structure is compared to gender lists, emphasizing sequential data storage and the creation of linked structures with blocks containing data and addresses.

Insights

The Gender List series explains the concept, necessity, and real-world applications of gender lists, aiming to address common problems and provide solutions for better understanding.
The array data structure is compared to gender lists, emphasizing sequential data storage and the linked structure of blocks within the list.
The process of creating and managing nodes in a gender list involves pointers, linked structures, and iterative steps to ensure the integrity and sequential execution of tasks.

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Recent questions

What is the purpose of a gender list?
Gender lists are data structures used to store and organize information in a sequential manner, allowing for efficient storage and retrieval of data.
How are nodes connected in a gender list?
Nodes in a gender list are connected through pointers, with each node containing data and the address of the next node, creating a linked structure for efficient data storage.
What is the significance of the head pointer in a gender list?
The head pointer in a gender list points to the first element of the list, crucial for inserting, updating, and accessing data within the list efficiently.
How are values inserted at the end of a gender list?
Values are inserted at the end of a gender list by moving the head pointer to the last node and creating a new node with the desired value, ensuring the continuity of the linked structure.
Why is dynamic memory allocation important in managing gender lists?
Dynamic memory allocation is essential for managing gender lists as it allows for the creation and deletion of nodes as needed, accommodating varying data sizes and ensuring efficient memory usage in the list structure.

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Summary

00:00

"Exploring Gender Lists: Concept, Structure, Applications"

The Gender List series is commencing to explain the concept, necessity, real-world applications, and data structure of gender lists.
The series aims to address common problems associated with the concept and provide solutions to ensure better understanding and recognition of issues.
An example involving hiding money in different locations is used to illustrate the concept of gender lists practically.
Two main methods of storing data are highlighted: storing data together or in different locations, akin to a shopkeeper storing sacks of china.
The array data structure is compared to the gender list, emphasizing the sequential storage of data in the latter.
The process of storing numbers 1 to 5 in a gender list is explained, showcasing the partitioning and linking of data blocks.
Each block in the gender list contains data and the address of the next block, creating a linked structure.
The concept of a single-linked list is introduced, where each block has a single address pointer to the next block.
The pointer within each block is named 'Next' and points to the address of the subsequent block.
The creation of a block in a gender list is detailed using a class structure, with each block (node) containing data and a pointer to the next block.

13:03

Node Creation and Insertion in Linked Lists

A node is named and given a node name, with a pointer pointing to a value of type b note.
The class named node contains data and the next part, which is a node pointing to the value of type b note.
The pointer p is explained as pointing to an integer type value.
Different types of addresses are discussed, such as IP address, MAC Address, home address, and office address.
Creation of a node is detailed, with the static and dynamic ways of creating a node explained.
The use of the new keyword for dynamic node creation is emphasized.
The process of inserting a node in a linked list is explained, with the importance of the head pointer highlighted.
Instructions on how to insert a node at the beginning of a linked list are provided.
The creation of a node and updating the head pointer to point to the new node is detailed.
The completion of the linked list creation process by inserting nodes is clarified.

28:48

Creating Gender List Using Pointers

The process involves creating a gender list with specific values.
The initial step is to create a pointer named 'head'.
If the 'head' is null, a new node with the value 28 is created.
The new node is created with the value 28 and its address is stored in 'head'.
A loop is used to add more values to the gender list, such as 4.
To add 4 to the list, a new node is created and linked accordingly.
The process involves dynamically creating nodes and managing their deletion manually.
The gender list is formed with values like 3, 6, 4, and 2.
The 'head' pointer is crucial in pointing to the first element of the gender list.
The process concludes with a successfully created gender list.

43:40

Creating and Printing Linked List Nodes

To insert at the beginning, the order is Aaya before two, four before four, si si se.
The list is printed, and to print it, the elements present inside the list are printed.
A new pointer is created, and the head is pointed to the same person.
A while loop is run until temp is not equal to null, printing the values.
The process involves creating a new node and inserting values in time.
The array contains elements 2, 4, 6, 8, 10 to be included in the gender list.
The program is run using a for loop to print the values.
To insert at the beginning, a new node is created and inserted.
To insert at the end, the head pointer is moved to the last node.
The process involves creating a new node and inserting values at the end of the list.

57:43

Creating and Updating Pointers in Programming

The text discusses the process of creating a new pointer and updating values within a program.
It emphasizes the importance of maintaining clarity in the process, ensuring the head pointer remains unchanged.
The text details the steps involved in creating a new pointer named Tail and updating values within it.
It highlights the significance of conditions and loops in the program, ensuring the correct sequence of actions.
The process involves creating new nodes and connecting them to the existing structure.
The text explains the necessity of updating values within the nodes and ensuring the correct pointers are established.
It underscores the iterative nature of the process, with a focus on creating and updating nodes systematically.
The text outlines the conditions for moving through the program, ensuring each step is executed accurately.
It concludes by emphasizing the importance of maintaining the integrity of the data structure and the sequential execution of tasks.
The text highlights the need for a systematic approach to programming, ensuring each step is executed correctly to achieve the desired outcome.

01:13:49

Creating Linked List with Tail Pointer

The process involves adding 30 initially and then adding another 30, pushing the tail forward.
The next step includes adding 80, avoiding the need to complete the entire traverse.
A small change in the code is suggested, involving a note pointer and inserting a new node.
The problem statement is clarified, emphasizing the need to traverse repeatedly.
The head and tail are both set to null, with a focus on the problem statement.
The process of creating a new node and updating the tail is detailed.
The code is simplified by avoiding unnecessary lengthy statements.
The new node is created and added to the tail, with addresses being crucial.
The process of inserting values at the end of the list is explained, emphasizing the head and tail pointers.
The recursive method of creating a linked list is outlined, detailing the creation of nodes and their addresses.

01:28:02

"Creating Linked List: Efficient Node Handling"

Rs 400 was returned, the note type value was written on it
Handling the base case is the initial step
Creating a node involves taking a new node pointer and inserting it into the array
Making a function call for the next node increases the index value by one
Storing the returned address is crucial in the process
The function "Create linked list" is called with specific parameters
The function returns the address of the created list
The time complexity of creating the list is of order n
The space complexity involves using a stack for the nodes
Removing extra space and only using space for the nodes is essential
Adding nodes in reverse order can be achieved by starting from the end and working backwards
Creating a linked list by adding nodes at the beginning involves linking them to the head pointer

01:41:59

Creating Linked List Nodes and Functions

The speaker is creating a node named Lia, which is expected to be the last node.
They clear 200 memory locations and proceed to call the next node.
The speaker passes the function key to the node, ensuring it reaches 200.
A node named Maan Loy is created in 300 locations, followed by a function call.
The speaker discusses the process of passing addresses and returning values.
They mention the importance of the head pointer and achieving specific conditions.
The speaker details the process of creating a linked list using arrays and passing addresses.
They emphasize the significance of the base case and the value of the previous node.
The speaker explains the steps involved in creating the linked list and returning addresses.
They conclude by running the function and verifying the correct output of the linked list.

01:56:07

Inserting Value in List: Key Steps Explained

The text discusses inserting a value in the middle of a list.
It emphasizes the importance of understanding the process clearly.
The text mentions the need to add a value after the third element in a list.
It details the steps involved in inserting a new value in a specific position.
The process involves creating a new node and updating pointers accordingly.
The text highlights the significance of correctly pointing to the next node.
It explains the necessity of managing addresses and pointers accurately.
The text provides a practical example of inserting the value '30' in a list.
It underscores the importance of avoiding errors in coding.
The text concludes by encouraging readers to practice similar exercises for better understanding.

02:09:58

Dynamic Gender Lists and Memory Management

Gender list is dynamic and can increase in size.
Using vectors can help increase dynamic lists.
Arrays can be increased by adding elements.
Dynamic memory allocation is crucial for managing varying data sizes.
Gender lists are beneficial for efficient memory usage.
Gender lists are useful in scenarios with unpredictable data sizes.

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