I've taken many courses on Inflearn, but I've never encountered such an excellent course. The money was absolutely worth it. In fact, I'm grateful that you're selling it at such an affordable price. I had to take coding tests for a job change, and starting from almost no foundation, after just one week of intensive cramming, I can now solve or at least attempt Baekjoon Gold 5 problems. Right before taking this course, I tried to brute-force my way through topological sorting but gave up, but now I understand it and can solve those problems.