Data Structures and Algorithms Made Easy with Pictures (Basic Edition)

Data structures and algorithms that developers must know
We'll teach you in a fun and easy way with pictures!

Once you learn the basics
You say it determines the code of your life? 🔍

Developer's Basics, Data Structures & Algorithms 📖

I always felt sorry when I saw developers who lacked basic skills wandering around, not knowing what to learn. They didn't have enough time, and it seemed like it was too much to keep up with the latest technologies.
Of course, cutting-edge technology is important, but in computer science, the fundamentals are even more important.
If you have a good grasp of the basics, you can easily learn flashy and popular techniques at any time.

Data structures and algorithms are not limited to a specific language or framework.
Even if popular languages and frameworks change, you can still take the data structure and algorithm knowledge you learn and apply it.

Developers who need guidance
Anyone OK 🚩

academic

_{Learning in school classes
Data structure/algorithm
It's too difficult and stiff.
Can't it be learned easily?}

Non-major

_{The specialists learn a new language,
Also in the framework
You seem to be adapting well...
I wonder what the secret is!}

Job seeker

_{If you look at the coding test questions,
I feel like there's a wall and I feel blocked.
I feel like I have to learn something
What the heck is that?}

Efficiency King

_{The code I wrote
Analyze performance,
More efficient and better performing
I want to change it into code.}

People who are just starting out in development often say this.

• “Often when I’m trying to solve a problem, I feel like I’m floating in a vast ocean.”
• “I try to solve problems by writing codes as ideas come to mind, but I can’t guarantee that the code is efficient .”
• “Even when comparing my code to other people’s code, I can’t really tell which code is more efficient.”
• “I feel like there must be some kind of systematic way to do this, but I have no idea how to do it.”

It's natural to immediately translate the ideas that come to your mind into code.
Until you learn data structures and algorithms !

Most of the problems we easily encounter can be solved with already known data structures and algorithms. Even if there are none, we can quickly solve them by applying the data structures and algorithms we know.
If you've ever felt the need for guidance, I'm confident that data structures and algorithms can do the job well.

Learning content
Check it out 📚

1️⃣ Prepare data structures and algorithms!

Learn what data structures and algorithms are, and prepare the necessary knowledge and environment before learning data structures and algorithms in earnest.

2️⃣ Learn about data structures!

Let's learn about data structures in earnest. Since this lecture is a basic course, we will learn about linear data structures, which are relatively simple structures, and implement them ourselves.

3️⃣ Learn the algorithm!

We will learn and implement a recursive algorithm and an algorithm for sorting a linked list, which is one type of linear data structure. We will also learn about dynamic programming, which can solve the shortcomings of recursive algorithms.

Frequently Asked Questions 💬

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