"Not suitable for beginners, but can be improved as you learn" If I were to summarize the lecture in one line, I would say so. I will write down what I felt while taking the lecture (not yet a complete course) from the perspective of someone who really knew nothing about algorithms. Lecture materials: Medium -> The C++ textbook is very detailed. However, the concept explanations on the instructor's blog are disappointing for beginners. Since it is an algorithm lecture, I gave it a medium rating because the algorithm concept descriptions are lacking. Problem difficulty: Low -> The problems are very difficult for beginners to solve. I think this part had a big impact on the one-line summary of the lecture. It is clear that these are not beginner-friendly problems. There are many problems that the instructor asks you to solve that have a correct answer rate of less than 30% or in the 30% range. Beginners may feel a big wall in the problems. (I'm just starting out with algorithms, but this is a Baekjoon Gold problem...OTL) Since the problems are this difficult, I can't solve many problems and it's not easy to make progress.. Problem structure: Medium-low -> There are core concepts for each chapter, but among the problems to be solved in each chapter, there are many implementation problems that are unrelated to the core concepts of the chapter. I wish they had included easy problems corresponding to the core concepts and solved them while increasing the difficulty level. (If they had made a separate implementation chapter...) Lecture content: Medium -> The concept explanation is kind and detailed, but the problem-solving lecture is disappointing. When I look at the problem, it seems like I should solve it like this, so I wrote the code like this~ (Actually, the lecture running time for each problem is not that long) This also felt difficult for beginners. It felt like learning to walk in the concept explanation, but suddenly having to do a somersault in the problem. I think this part is closely related to the difficulty of the problem. Answer to question: Best -> The answers to questions are really kind and faster than other instructors. This part is really good because I can feel that they really work hard for their students. In conclusion, it is definitely not a kind and good lecture for beginners. However, I think it is a lecture that has a high possibility of becoming a good lecture as much as you grow by persevering and breaking down. However, I think that beginners may give up on algorithms a lot during this process. (I am also thinking about whether I should give up because my brain is not good and I have no talent.) I think it would be better for those who want to learn the basics of algorithms one by one in a really kind way to take other lectures. I have rarely written reviews for this course (there are many lectures purchased from Inflearn..), but since there are many people who are thinking about and preparing for algorithms, I wrote this in detail to share my experience.