Linked List Explained in English | Types of Linked List & Insertion with Code | DSA with Python
Welcome to the first video of our Linked List Series !
In this video, we’ll cover the basics of Linked Lists in Data Structures, along with live coding in Python.
🔹 What is a Linked List?
🔹 Types of Linked Lists (Singly, Doubly, Circular)
🔹 Real-life analogies to understand it easily
🔹 Why prefer Linked List over Arrays?
🔹 How to perform insertion in a Singly Linked List
🔹 Hands-on Python code with clear explanations and dry run
This video is perfect for DSA beginners and those preparing for coding interviews.
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🎬 Timeline (Translated)
⏰ 0:00 – 0:10 → Intro
“If you find Linked Lists confusing, this video is made just for you — from real-life examples to complete Python code, we’ll break it all down step by step!”
⏰ 0:11 – 1:01 → What is a Linked List?
Unlike arrays, memory blocks in Linked Lists are not stored in a continuous manner
Each node contains two parts: data and pointer to the next node
Real-life example: Train bogies or music playlist 🎶🚆
⏰ 1:01 – 3:31→ Types of Linked Lists
Singly Linked List → Node points only to the next
Doubly Linked List → Node has both previous and next pointers
Circular Linked List → Last node connects back to the head node
⏰ 3:31 – 5:25 → Singly Linked List Structure
Define a Node class in Python
Explain the data and next attributes clearly
⏰ 5:25– 6:05 → Insertion in a Singly Linked List
Insert at the beginning
Insert at the end
Insert at a specific position (only basic concept here; code in next video)
⏰ 6:05– 11:40 → Python Code for Insertion and painting linklist
Show complete Node and LinkedList classes
Focus on insert_at_beginning() function
Perform a dry run on an example input
⏰ 11:40– 12:00 → Time Complexity Analysis
Inserting at head → O(1)
Inserting at tail → O(n) (because you traverse till the end)
⏰ 12:01 – 16:20→ Summary + Outro
"In today’s video, we learned what a linked list is, its types, and how to perform insertion using Python. In the next video, we’ll explore deletion and traversal in a Linked List."
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