What was your most memorable “first time”?

I think the most memorable “first time” in my life was the time I solved a difficult algorithm problem by myself. When I started to study problem solving field, there were few problems I could solve and I couldn’t even get a sense of a difficult problem. At that time, I realized that all I have to do is to study hard and learn anything that can help my skills. So, I’ve made steady and persistent effort. Sometimes I used to debug my code through the night. Recently, I found myself getting better than before. I can now solve a difficult problem that I couldn’t even touch before. Even though there are more steps to improve, I want to pay myself a compliment and I’ll go on.