It's been roughly 2 years since I compete in Codeforces and even 4 years since I first dive into competitive programming. My problem solving skills indeed improved but not significantly. I tried my best to solve many problem as possible but those problems is quite hard to solve with my current skills right now. And yet there's 5 months left before next ICPC regional and there'll be new contestansts stronger than last year's from my country. I really want to go to WF even if it's only once before I quit and focus to became developer... But it's really hard. I'm tired...