Hello, wisehero!! Thank you for your cool evaluation. I think it's more reliable because someone who understands the recent coding trends left a review!! I also know what you're talking about. I try to reflect the latest trends by solving the coding test questions every year. In particular, the recent coding test questions are really long, so it will be very difficult to understand step 1. The problem. That's why I always say that understanding step 1 is really important throughout the lecture and spend a lot of time on it. However, the purpose of this lecture is to solidify the basics that everyone, from those who don't know anything about data structures and algorithms to those who have solved a lot of the latest coding test questions, must know. If you have a solid foundation, you can apply/apply to any problem!! That's my opinion. ㅎㅎ Still, I think it's really good that I can hear various opinions. Thank you again! If you have any questions, feel free to leave a question~~ Fighting