This is the best coding test lecture ever! I've taken many algorithm lectures since I was an undergraduate, but I don't think there's any other lecture that provides such high-quality visual materials + detailed concept explanations + systematic problem explanations. I started listening to it when I started preparing for a job change, and I'm so happy that I can listen to such a high-quality lecture at this price. ㅎㅎ What really impressed me was that you could visualize each code and see how the code works line by line! I could feel that you put a lot of effort into the lecture. ㅠㅠ Also, I liked that you explained various approaches to solving tree problems, and it was amazing that many problems could be solved with just a little modification from the template you asked me to memorize! I think it's important to explain the trade-off in terms of time complexity when doing a coding interview, and I liked that you covered in detail why this code has this time complexity, and what the minimum time complexity should be for solving this constraint, etc. Problem solving deals with problems that can apply the concepts learned for each concept, and if you know how the instructor approaches it, how to think about it, and what parts to keep in mind, and if you repeatedly solve and master those problems, you will be able to solve other problems without much difficulty! I didn't have confidence in algorithms, but thanks to the instructor, I'm having fun these days ㅎㅎ I applied for the killing camp this time, and I will definitely complete this lecture and camp to successfully transfer to the company I want!!>_<