/ C · C++ · Python · Beginner to advanced
Master Data Structures
& Algorithms
Physical structures like arrays and linked lists. Logical structures like stacks, queues, trees and graphs. Searching, sorting, recursion, greedy methods and dynamic programming — each one worked through by hand, then implemented in C, C++ and Python.
- Sections
- 0
- Lectures
- 0
- Of video
- 0h 57m
- Arrays
- Stacks
- Recursion
- Queues
- Circular Queues
- Linked Lists
- Doubly Linked Lists
- Binary Trees
- Traversals
- Binary Search Trees
- Heaps
- AVL Trees
- Graphs
- BFS & DFS
- Hashing
- Collision Resolution
- Big-O
- Master Theorem
- Spanning Trees
- Quick Sort
- Merge Sort
- Binary Search
- Greedy Method
- Dynamic Programming
/ The path
From memory layout to dynamic programming
21 sections, grouped into six stages. Open any stage to see the sections it contains, exactly as they appear in the course.
- 01
Linear structures: Arrays
How memory is laid out, then the four structures built directly on top of it. Row- and column-major order, push and pop, the circular queue that fixes the ordinary one, and singly, circular and doubly linked lists — each written out in C, C++ and Python.
- Sections
- 5
- Lectures
- 79
- Runtime
- 16h 22m
Sections in this stage
- 01Basic Stuff1
- 02Arrays16· 1 article
- 03Stacks9
- 05Queues11
- 06Linked Lists43
- 02
Recursion
Reading recursive code by drawing its recursion tree, then turning that tree into a running time with the substitution method. Given its own stage because it is the section the course itself flags as the hard one.
- Sections
- 1
- Lectures
- 11
- Runtime
- 1h 51m
Sections in this stage
- 04Recursion : Exclusive11
- 03
Trees & heaps
Pre-, in- and post-order traversal, and rebuilding a tree from two of them. Insertion and deletion on binary search trees, max-heap construction and its array representation, and every AVL rotation case — LL, RR, LR, RL on insert, R0 through L1 on delete.
- Sections
- 5
- Lectures
- 41
- Runtime
- 8h 22m
Sections in this stage
- 07Binary Trees9
- 08Binary Search Trees11
- 09Heaps4
- 10AVL Trees - ExclusiveBonus · Advanced16
- 112ary Tree, Full Binary Tree, Complete Binary Tree - Properties.1
- 04
Graphs & hashing
Adjacency lists against adjacency matrices for directed and undirected graphs, depth-first and breadth-first traversal, and Kruskal's and Prim's algorithms for minimum spanning trees. Then hash functions and every collision resolution technique from linear probing to chaining.
- Sections
- 3
- Lectures
- 26
- Runtime
- 4h 16m
Sections in this stage
- 12Graphs5
- 13Hashing14
- 17Spanning Trees7
- 05
Complexity analysis
Big-O, Big-Omega and Theta with worked examples and their algebra. Counting the cost of simple and nested loops, and the Master Theorem for divide-and-conquer recurrences.
- Sections
- 3
- Lectures
- 19
- Runtime
- 2h 47m
Sections in this stage
- 14Asymptotic Notations10
- 15Time Complexity : Exclusive5
- 16Master Theorem4
- 06
Sorting, searching & algorithm design
Bubble, insertion, selection, merge, quick and heap sort, each with its best and worst case. Linear and binary search, iterative and recursive. Then greedy methods — job sequencing, knapsack, optimal merge patterns — and dynamic programming.
- Sections
- 4
- Lectures
- 46
- Runtime
- 10h 20m
Sections in this stage
- 18Sorting Algorithms26
- 19Searching Algorithms9
- 20Greedy Method7
- 21Dynamic Programming4
/ Free to watch
Watch before you decide
Full lessons and worked GATE questions from the same instructor, on the EduFulness channel. No sign-up, no email.
Data Structures and Algorithms
The full data structures and algorithms series on YouTube, in order.
Open the playlist- LessonCourse demo
Data Structures and Algorithms Demo
YouTube - LessonSorting
Bubble Sort : Example, Algorithm, Time Complexity | Data Structures and Algorithms.
YouTube - LessonRecursion
1.Towers of Hanoi | Introduction to Towers of Hanoi | Towers of Hanoi part one, Towers of Hanoi game
YouTube - GATE PYQRecursion
Evaluating Recursive Code - Constructing Recursive Tree | Data Structures | GATE 2023
YouTube - GATE PYQBinary trees
1. Data Structures - Binary Trees - Postorder and Inorder -2018 | Previous Year GATE CS/IT Questions
YouTube - GATE PYQHeaps
2. Data Structures - Min Heaps - 2018 | Algorithms | GATE CS/IT Previous Year Question Solutions
YouTube - GATE PYQGraphs
3. Data Structures - Graph Traversals - 2017 |Algorithms|GATE CS/IT Previous Year Question Solutions
YouTube - GATE PYQHashing
Data Structures & Algorithms - Chaining - Hashing -2014 |GATE CS/IT Previous Year Question Solutions
YouTube
More on the EduFulness channel.
/ Next live class
Free live demo session
- Date
- Wednesday, 2 September 2026
- Time (IST)
- 8:00 pm
Attend the demo and experience the learning approach before you begin your DSA journey with EduFulness.
What the session covers
- Complete course roadmap
- What you will learn in each module
- Our teaching methodology
- How we approach DSA problems
- Interview preparation strategy
- Course structure and learning path
- How the program can help students, job seekers and working professionals
Free to attend
/ The programme
What you get
In the course
- 21 sections, 222 video lectures
- 43h 57m of video
- Implementations in C, C++, Python
- 6 stages, from memory layout to dynamic programming
- 1 written article
What you'll learn
- Data Structures and Algorithms for Beginners to Advanced
- Detailed discussion on Physical Data Structures like Arrays and Linked Lists
- Detailed discussion on Logical Data Structures like Stacks, Queues, Trees, Graphs
- Play with Searching and Sorting techniques
- Master the Most difficult concept 'RECURSION'
- Master Dynamic Programming and Graphs
Where to buy
The course is sold on Udemy, where the price moves with Udemy's own promotions. Rather than print a figure here that goes stale, the button takes you to the live price.
See the price on UdemyRegister for Free Demo ClassFree lessons first? Start here
/ Your instructors
Taught by Atchyut Kumar and Amulya
Atchyut Kumar
Founder, EduFulness
Atchyut Kumar
Founder, EduFulness
Atchyut Kumar has taught computer science for more than fifteen years, seven of them as GATE faculty. He holds an M.Tech from NIT Calicut and placed in the 99.97th percentile in GATE CS/IT — All India Rank 440.
That background shows in how this course is built. Every structure is worked through by hand first — drawn, traced, its cost counted — and only then written out in C, C++ and Python. It is the same order an interviewer asks for, and the same order GATE marks.
- Students mentored
- 0+
- GATE CS/ITpercentile · AIR 440
- 0
- Years teachingresearch and industry
- 0+
Amulya
Software Engineer SDE-II, Microsoft
Amulya
Software Engineer SDE-II, Microsoft
Amulya is a Software Engineer SDE-II at Microsoft, working on Azure Networking, with a strong background in Data Structures & Algorithms, System Design, and software engineering. A Computer Science graduate from NIT Rourkela, she has also mentored students in DSA and interview preparation.
That experience shapes how she teaches. Concepts are not treated as patterns to memorise — they are built from first principles, visualised, and then translated into code. The focus is on understanding the why behind a solution and developing the problem-solving skills needed for both interviews and real-world engineering.
/ In their words
What students say
Reviews left on Udemy, quoted in full and unedited.
Rated 5 out of 5
The Data Structures & Algorithms using C++, C, and Python – 2025 course by Atchyut found it very useful. The explanations were clear, made the concepts easy to understand with examples. Great course for building strong DSA foundations. Thank you!
Rated 5 out of 5
The course "Data Structures & Algorithms using C++, C and Python - 2025" by Atchyut Sir is excellent! The explanations are very clear, well-structured, and easy to follow. I really liked how he covered each topic with practical examples. It helped me understand the core concepts deeply. Thank you Sir.
Rated 5 out of 5
Great course. What a effort with simple explanation with deep knowledge. The best teacher naturally in my life. Concepts implemented in three languages is great thing. Thanks a lot dear Sir.
Rated 5 out of 5
Why this instructor didn't became famous in this computer science field. His knowledge and teaching skill is awesome. He know very well how to start a topic and how to engage the students. This is my personal view after 70% of course completed. The best faculty. I wish you will became very famous very soon sir.
Rated 5 out of 5
Good course with deep knowledge from instructor. Most likely part for me is , he always teaching from scratch and providing lots insights giving and making so much confident in subject. Linked lists and trees are such difficult topics for me, but now I am absolutely playing with them. Thank you sir.
Rated 5 out of 5
This course is quite comprehensive when compared with other courses available on this platform which is why I bought it. It is packed full of amazing content and like the description, it did make me a full data structures master. The instructor is a very good teacher using visual aids (not just talking) and simple illustrations to drive home a point. I enjoyed the course, well recommended for all levels.
Rated 5 out of 5
Very smooth teaching and deep discussion on every topic. Teaching from always basics and taking very deep. I did 60% of course. Simply superb. My basics are very poor. But made me like pro. Thank you sir.
Rated 5 out of 5
This is a really amazing course. Seems like a lot of effort was given to creating this course. It helped me a lot with my academics as well as placement preparation. Tons of thanks to you Atchyut Sir.
Rated 5 out of 5
Great way to explain complicated data structures.
Rated 5 out of 5
The course was great. Great part of his course is every concept explaining in all possible directions. Always starting from very basic and going very deep as much as possible. Most part of the material was complex and instructor found a way to explain it clearly. A lot of examples were provided were discussed for every concept.
Rated 5 out of 5
Mr. Atchyut Kumar does an excellent job of thoroughly explaining each method data structure. He shows with plenty of detailed examples, making it very easy to understand. He doesn't go straight to the solution, he explains things in a way that make it easy to understand with charts and very descriptive diagrams. It makes for very easy learning. You won't be disappointed.
Rated 5 out of 5
One of the best courses I've enrolled here in Udemy, he is a good teacher, he gives challenges, examples and tips too.
Rated 5 out of 5
This is Course is the FIRST Udemy course which I felt PERFECT! There was enough guidance AND enough opportunity to explore and rock yourself. I really enjoyed the course. It covered lot of things which are missed in college and hopefully will help me with my upcoming interview.
More on the course page.
/ Ready to start?
Start solving, not
memorising.
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