The Ultimate Data Structures & Algorithms: Part 2
Ace your coding job interview. Learn to write better and faster code.
Studied Computer Science - but never really understood the complex topic of data structures and algorithms?
Or maybe you’re a self-taught programmer, with little to no knowledge of this important topic.
Or perhaps you failed a job interview because you couldn't answer basic data structure and algorithm questions.
So, why are data structures so important these days?
Data structures and algorithms are patterns for solving problems. Developers who know more about data structures and algorithms are better at solving problems. That’s why companies like Google, Microsoft and Amazon always include interview questions on data structures and algorithms. They want to assess your problem-solving skills. They don't care how many programming languages and frameworks you're familiar with.
A complex topic made simple
That’s why I made this course. I want to demystify data structures and algorithms once and for all.
I remember being hopelessly confused when my college lecturer tried to teach it, many moons ago. So I had to teach myself. Now I’m an expert on the topic, and I want to save you the dozens of hours I wasted at the library trying to wrap my head around it.
Packed with the most popular interview questions and step-by-step solutions
By the end of this course…
You’ll be able to:
- Ace your next coding interview
- Write better, faster code
- Become a better developer
- Improve your problem solving skills
- Master computer science fundamentals
- Implement all the essential data structures from scratch
- Master dozens of popular algorithms
"I’ve actually landed my first job as a Junior software developer. I owe a lot of it to you because your courses have been EXTREMELY helpful. This has really changed my life from working as a security guard and doing websites for free, now I am a professional."
- Danish Jafri
"Mosh, let me tell you I have been winning the code competitions here in India and excelling in my work and it gives me a great proud to say that you are my teacher. I have purchased every course you have uploaded till now and looking forward to learn everyday with you. Cheers!!"
- Karan Valecha
What you're going to learn
This course is the second of a series. In the first part, we covered the linear data structures (Arrays, Linked Lists, Stacks, Queues and Hash Tables). In this part, we'll be focusing on non-linear data structures. Part 3 is about searching, sorting and string manipulation algorithms.
Here's what you're going to learn in this part:
- Binary Trees
- AVL Trees
This is the most comprehensive data structures and algorithms series online. Every example and exercise is picked from popular interview questions asked by Google, Microsoft, Amazon and other big companies.
Most data structure books and courses are too academic and boring. They have too much math and their code looks ugly, old and disgusting! This course is fun and easy to follow and shows you how to write beautiful code like a software engineer, not a mathematician.
Who is this course for?
- Anyone preparing for a coding job interview
- Computer science students whose lecturers failed to explain the topics
- Self-taught developers who missed out on a computer science degree
- Anyone who wants to become a better developer
In this course, I use Java to teach the concepts but you can apply these concepts in any programming language. Our focus is on data structures and algorithms, not programming languages and tools.
All you need to take this course are some basic programming skills. If you know variables, loops, and conditional statements, you're good. If you need a quick refresher to get up to speed with Java syntax, you can watch the first part of my Java series.
Ideally, you should have taken the first part of this series as the concepts and exercises in this part are more complex than those covered in the first part.
Hi! My name is Mosh Hamedani. I'm a software engineer with two decades of experience. I've taught millions of people how to code and how to become professional software engineers through my online courses and YouTube channel.
I believe coding should be fun and accessible to everyone.
Preview1- Introduction (0:55)
Preview2- What are Trees (5:36)
Preview3- Exercise- Populating a Binary Search Tree
Preview4- Exercise- Building a Tree (2:41)
Preview5- Solution- insert() (7:44)
Preview6- Solution- find() (2:00)
Start7- Traversing Trees (5:58)
Start8- Exercise- Tree Traversal
Start9- Recursion (5:39)
Start10- Depth First Traversals (5:23)
Start11- Depth and Height of Nodes (7:06)
Start12- Minimum Value in a Tree (7:37)
Start13- Exercise- Equality Checking (0:45)
Start14- Solution- Equality Checking (4:08)
Start15- Exercise- Validating Binary Search Trees (4:14)
Start16- Solution- Validating Binary Search Trees (4:18)
Start17- Exercise- Nodes at K Distance (1:48)
Start18- Solution- Nodes at K Distance from the Root (4:37)
Start19- Level Order Traversal (2:55)
Start20- Trees- Exercises
Start21- Summary (1:22)
Start1- Introduction (0:31)
Start2- Balanced and Unbalanced Trees (3:01)
Start3- Rotations (5:02)
Start4- AVL Trees (4:04)
Start5- Exercise: AVL Rotations
Start6- Exercise- Building an AVL Tree (1:11)
Start7- Solution- insert() (8:47)
Start8- Exercise- Height Calculation (1:24)
Start9- Solution- Height Calculation (2:43)
Start10- Exercise- Balance Factor (2:04)
Start11- Solution- Balance Factor (4:01)
Start12- Exercise- Detecting Rotations (2:54)
Start13- Solution- Detecting Rotations (3:32)
Start14- Exercise- Implementing Rotations (3:51)
Start15- Solution- Implementing Rotations (5:40)
Start16- AVL Trees- Exercises
Start17- Summary (1:01)
StartA Quick Note
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Frequently Asked Questions
Ace Your Next Coding Interview
Mastering data structures and algorithms is essential to getting your dream job. Don't waste your time browsing disconnected tutorials or super long, boring courses. Enroll in the course to get:
- 6 hours of HD videos
- Popular interview questions
- Step-by-step solutions
- Certificate of completion
- Downloadable source code
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