People I would recommend this course to: People preparing for the coding test
I finally completed the course on July 14, 2023, when I bought the course and wrote a review, starting the semester in March 2023. I skipped 2 weeks each for the midterm and final exams during the semester, so I completed the course in 14 weeks. It's not 10 weeks, but it feels a little late because of school.
I started with a blank sheet of algorithms, not even knowing if there was a site called Baekjoon or Programmers. I learned C++ because I'm an engineering major, but I've never seen it again for 3 years, including 2 years in the military + 1 year, so I started with almost a blank sheet of paper.
I think I literally followed the instructions in the lecture. I studied the C++ textbook for about 2 weeks, went into the actual class, learned the concepts, solved problems, and if I got it wrong, I asked how to solve it, and when they answered, I followed them (they even always answered within a day). Before I knew it, I completed the course.
Now I know what an algorithm is and can tell you how to solve a problem. I couldn't even solve Baekjoon Bronze problems, but now I happily solve Silver problems and I'm growing by getting 50-60% correct on Gold sub-problems.
Of course, the problems included in this lecture are by no means easy. This is not an exaggeration..ㅠ When I took the class up to the 3rd week, I got almost all the problems wrong, so I doubted myself and wrote to the teacher, asking if I was really studying properly. Fortunately, I received feedback on this within a day, and I followed it.
This is a lecture with really solid updates. There was a major reorganization during the period I was taking the class. The lecture was updated by incorporating the opinions of the students. I even confirmed that the questions I asked were included, which is a little embarrassing... But it's great that the code is clean...
If you take this class, you will definitely have doubts dozens of times. Even though I looked at the C++ textbook, C++ is so difficult... How can I memorize it all? Every time I learn a new algorithm through a weekly lecture, how do I use it? How do I apply it? Should I just give up when I get a mistake on a problem that I sincerely solved and lose motivation?
All of these answers are in this lecture. Each problem is mentioned dozens of times so that you can memorize it. You may still not know. You may still have questions. Then ask. You can get the answer to your question on the same day at the earliest, or within 3 days at the latest.
Bigdolnim is the best! And fighting to all the other students!!
**** Companies that passed the coding test as of January 17, 2024
Nexon, LG CNS, LG Electronics, Hyundai Motors, and other boot camps
Although I did not pass due to insufficient specifications, I applied to companies that wanted to take the coding test and had good results at least in the coding test. I hope everyone will have good results through this lecture! Thank you.
**I passed the final interview at LG Electronics!
5.0
냠냐미냠냠냠
60% enrolled
Thanks to this lecture, I passed the LG Electronics exam!!
I am a major, but this lecture is the first time I started studying for a coding test in earnest,
and I would like to say that it was a great help.
(They even praised me for doing well on the coding test during the interview ㅎㅎ)
I highly recommend it!!👍👍
5.0
ghtkdrla321
38% enrolled
As IT becomes more crowded and competition for positions increases, the difficulty of coding tests is gradually increasing. I don't think that just doing 'implementation slightly, dfs/bfs slightly, dp slightly up to Baekjoon Silver-Gold lower level' like before can guarantee a stable pass.
Personally, I think that maintaining consistency is important when preparing for a coding test. Even in the test room, I think that it is important to think about how to solve it according to the flow of my usual thoughts, and when solving the logic into code, rather than doing different implementations, variable names, etc. as I feel like, I think that I can avoid exceptions such as 'condition issues' by doing it the way I usually do.
In that sense, I think this lecture is a lecture that I really recommend to majors.
ES-> Time Complexity Calculation-> Finding Improved Algorithms that are the same for all problems
It is based on a consistent solution for each week's algorithm, and you can continuously practice good habits that remind you that you have to pay attention to the consistency up to variable naming. ‘What kind of major would pay for a coding test?’ That’s right. You can do it on your own. But it’s a waste of time. I think that the carefully selected problems, consistent optimization solutions, quick query feedback that reduces the time spent on digging, and base codes through the textbook will be valuable leverages for majors as well.
What you will gain after the course
C++ Basics for Coding Tests and Algorithms
Algorithm
Data Structures
Tips for "Why is this wrong?" from a top 0.1% Baekjoon user
Algorithm concepts for coding tests, along with 160 recommended problems and video explanations.
Conquer coding tests now with a proven 10-week curriculum!😎
Coding test lectures Which one should you choose? 💬
There are many coding test courses, but not many are actually proven. I created this course based on my experience teaching students for three years and successfully helping those who knew nothing about algorithms get hired by major IT corporations.
* Attaching some of the KakaoTalk messages left by actual students who passed.
[Baedal Minjok (Baemin) Acceptance]
[LINE Acceptance]
[Naver Webtoon Accepted]
[Naver Acceptance]
[Kakao Acceptance]
[Samsung Electronics Acceptance]
Check out the reviews from successful candidates 💪
C++? It's okay if you don't know it! 3 years of know-how condensed into this algorithm study guide is all you need. It takes as little as 3 days, or 2 weeks at most!
* These are the minimum and maximum amounts of time it took for students who didn't know C++ to learn it, based on three years of teaching experience.
We explain the basics of C++ step-by-step based on examples.
It kindly teaches you all the data structures "perfectly" required for coding tests and the overall usage of C++ STL.
We explain the easiest and most efficient "killer codes" that can execute the core logic frequently found in coding tests.
It contains know-how on how to resolve frequently encountered and frustrating situations, such as "Why is this wrong when it should be right?"
In addition to this, we provide a 200-page teaching manual packed with C++ basics and various coding test know-how, so that even those who don't know C++ can perform algorithms using C++ with just this single guide.
With a total of 440 pages of course materials, perfectly covering everything from C++ to algorithm concepts
We provide a total of 440 pages of PDF files, combining the algorithm concept manual, C++ manual, and explanation manual. Through this, you can learn algorithms perfectly.
Top 0.1% of Baekjoon, the highest level of solution codes are provided.
Each problem is bound to have multiple answers, and among them, a best answer. I have continuously contemplated "What makes a better code?" while building these explanatory codes.
* For problem 1911, this shows achieving 6th place in the overall code rankings among all submitted solutions
You no longer have to waste time scouring the internet to find better or more understandable code. You only need to study the "explanation code" in this lecture. We have prepared and refined the highest quality code for our students.
From the perspective of solving the problem, we will teach you everything and pass on 3 years of premium know-how.
It doesn't just teach you to solve a problem because "this is the code"; it passes on the expertise perfected over three years of teaching students, including the perspectives and ideas behind why a problem should be solved in a certain way.
* Baekjoon 3986 Good Word Problem Solving
This problem is solved simply by using a stack. However, it explains in detail why you should think of a stack, how to come up with the idea of using a stack, and how to approach the problem to generate such ideas. Rather than just showing the final code, it focuses on the problem-solving process to help you refine your "thought process for solving problems."
Not only for coding tests, but you can also learn general data structures.
This course not only equips you with the algorithmic skills needed for coding tests but also allows you to build a solid foundation in overall data structures. In this course, you can learn a wide range of data structures, including vector, array, map, unordered_map, set, multiset, stack, and queue.
Even for coding tests restricted to Java or JavaScript, perfection is guaranteed.
Sometimes, there are cases where you must take a coding test using only Java or JavaScript. To prepare for such situations, I have even created a video explaining what to watch out for when converting knowledge learned in C++ to other languages, as well as the core logic that needs to be focused on specifically in Java and JavaScript.
160 problems, exactly what you need for coding tests, along with explanation lectures.
There are so many problems in the world. For example, in implementation, there are representative problems like the Robot Vacuum. For three years, while teaching students directly, I experimented over and over to find which problems should be solved in what order and how many to pass the coding test. As a result, I am revealing 160 carefully selected problems to you.
There are many courses in the world that solve easy problems or only a small number of problems. However, you can never pass a coding test by solving easy problems and a small number of questions. Based on a curriculum verified over three years, this is the only course in Korea that solves as many as 160 problems. This course contains the time I spent agonizing over and over so that you can pass the coding test just by solving the problems provided in this lecture.
I hope you no longer study algorithms in an inefficient way.
I hope you will no longer have to scour the internet in search of better, more understandable code.
Don't waste your time and
I hope you can finish your "coding test" preparation with this single lecture.
Check out the curriculum. 📚 📚
First, you should study by following the process of completely mastering the C++ algorithm textbook > conceptual lectures > solving problems on your own > watching the corresponding problem-solving lectures. You will focus on concepts frequently appearing in coding tests, such as implementation, DFS, BFS, tree traversal, brute force, backtracking, and bitmasking, with recommended problems (160 in total) provided for each week.
I believe that a course that is continuously updated is the best kind of course. As if to prove this, it was selected as the course with the most updates among all courses on Inflearn in 2022. I will always strive to provide the best learning experience by quickly incorporating student feedback and other areas for improvement.
My course is also well-known for providing fast and sincere answers when students ask "Why is this wrong?" (WA). As if recognizing this, I was selected as the instructor who provided the most answers this year at the 2024 Inflearn Awards. I will always strive to provide the best possible answers to my students' questions. :)
Notice regarding response to the termination of Baekjoon services on April 28th
Hello, I am the instructor Kundol. Despite the shutdown of the Baekjoon service, I have created the "Coding Apricot Club" exclusively for my students so that there are no issues with taking my course.
What Coding Apricot Club looks like
You can solve weekly practice problems as well as modified past exam questions from actual major corporations. :)
There's even a cute animation when you get it right ^_^
Check out the Frequently Asked Questions. 💬
Q. The coding test language for the company I am applying to is not C++. Will that be okay?
Yes, it is fine. I have seen many students study with this course, port the code to Java or JavaScript, and pass their coding tests. In fact, converting to another language is not very difficult. For example, to add an element to a vector in C++, you use the push_back() function, right? In Java, you use append(), and in JavaScript, you use push(). Since there are only these minor differences, I recommend studying with this course using C++, which is an easy language for learning algorithms, and then if you must use a different language for the coding test, porting it to that language.
thoughtful
You will need some practice on this part before taking the coding test, but it doesn't take that long. If you have to use Java for a coding test after learning with C++, it usually takes an average student about one day to complete the preparation for that transition.
For your reference, I have even created a video to help you prepare for that part. Please check it out. :)
Q. Can I take this course for the purpose of studying algorithms rather than specifically for coding tests?
Yes, that's fine. In fact, while the title of this lecture is "10-Week C++ Coding Test" for keyword optimization, it could just as easily be called "10-Week C++ Algorithms." Since I explain a vast number of problems—160 in total—covering general algorithm concepts and including difficult problems up to Platinum difficulty, it will be helpful for studying overall algorithm topics.
Q. Isn't C++ difficult?
C++ is difficult, but C++ for algorithms is not. Through the C++ for algorithms syllabus I have prepared specifically for this purpose, you can learn to implement algorithms in as little as 3 days or as long as 2 weeks.
Yes, it's fine. However, you must know how to program, and it's fine as long as you can implement logic based on at least one language.
Q. Can I pass a coding test just by solving the problems provided here?
Yes, I am confident that you will pass the coding tests of most companies. I can say this with certainty because I have experience helping students who knew nothing about algorithms pass coding tests for companies like Naver, Kakao, and Samsung using only this curriculum.
Q. Even if I solved the problem, should I still watch the lecture or look at the answer?
Yes, that's correct. For example, if a student's code is 10 lines long but the answer I created is only 1 line, you should transcribe my answer. To write better code, a review process is necessary where you look through my code and study it once more.
Q. Within how many days will I receive a response after asking a question?
You can receive an answer as quickly as within an hour, but you should generally expect it within 1 to 3 days. (Excluding weekends and public holidays)
Recommended for these people
Who is this course right for?
A student who is unable to find direction on what to do, even though their coding test is just around the corner.
Students who can solve problems to some extent but get stuck when actually taking a coding test
Those who do not know which algorithm to apply when solving problems
I finally understand why the lecture is only 8 weeks long but it takes 10 weeks to complete... The problems in week 8 are too hard ㅠㅠ But I can feel my skills improving as I solve each problem. I used to study algorithms on my own. However, I had no idea how to solve the gold problems. What really helped me with this lecture was that it explained the core problem-solving methods and useful tips for each chapter in an easy-to-understand way. It doesn't just teach short coding that is difficult to use in real life, but it teaches efficient coding methods, so I think it will be helpful when preparing for algorithm competitions or coding tests in the future. I also liked the selection of quality problems. I listened to the good lecture at a reasonable price. Thank you~
Hello, Seojin Kim.
Thank you for your good review. ㅎㅎ
We will work hard to make the lecture even better.
If you have any feedback, please send it to me by email and I promise to review it and reflect it.
If you have any questions, please post them in the Q&A section and I promise to respond quickly.
Thank you.
Instructor Bigdol Upload
I was often exposed to the C language in college, but I was worried that I wouldn't be able to solve the algorithm because I wasn't familiar with it. However, my worries disappeared after I solved the problems by looking at the textbook that only included the key usage methods.
First of all, it's good that there are many fun parts in the middle of the concept lecture, so it doesn't get boring.
I think the characteristic of Teacher Bigdol's lecture is that the explanation is not complicated and only tells the key points.
However, in the end, I think the most important thing for coding tests is that you solve them consistently. I think that's also an advantage because you can solve high-quality problems that Teacher Bigdol has carefully selected.
Hello, Sangho.
Thank you for your good review. ㅎㅎ
We will work hard to make the lecture even better.
If you have any feedback, please send it to me by email and I promise to review it and reflect it.
If you have any questions, please post them in the Q&A section and I promise to respond quickly.
Thank you.
Instructor Bigdol Upload
Pros
ㆍ Quick answers to questions, quality communication and constant updates
ㆍ Detailed explanations when teaching concepts every n weeks
ㆍ Techniques for problem solving and efficient codes
Cons
ㆍ Lectures that feel like review
ㆍ Lectures focused on algorithms (C++ basic concepts omitted)
Personally, I think most of the cons are covered by the lecture materials.
Hello 03developer.
Thank you for your good review. ㅎㅎ
We will work hard to make the lecture even better.
If you have any feedback, please send it to me by email and I promise to review it and reflect it.
If you have any questions, please post them in the Q&A section and I promise to respond quickly.
Thank you.
Instructor Bigdol Upload
I've taken a few other coding test lectures, but there's no lecture as energetic as Bigdol's lecture. When I don't feel like studying, I feel energized when I watch the explanation lecture.
I can see that you put a lot of effort into the algorithm textbook.
When you first start learning algorithms in C++, you often don't know how much you should study, but this textbook contains all the content you need for algorithms, so it's good.
I like that the lectures only explain the key points without long explanations.
And they also select good problems, so I don't have to solve useless problems.!
Hello fb.
Thank you for your good review. ㅎㅎ
We will work hard to make the lecture even better.
If you have any feedback, please send it to me by email and I promise to review it and reflect it.
If you have any questions, please post them in the Q&A section and I promise to respond quickly.
Thank you.
Instructor Bigdol Upload