Dear community, I finished work on my diploma and returned to the CP. Did you have such an experience of returning? If yes, please share advice that helped you.

Hello, community

I have an idea how to improve tournaments: let tournament authors tag the rating they think is needed for solving every problem, because of cf task rating system is quite strange... There is the 1900 task in the recent div4... I think this will help self-improvement for people who practice without a coach

Which thoughts do you have about this?

What is better for improvement skills: Upsolve problems Doing virtual contest Solving problems of specific topic

MikeMirzayanov tourist Um_nik Вы знаете, что в Украине есть большое сообщество которое есть неотъемлимой частью сообщества Codeforces. Мы требуем вашей реакции на наступление российской армии, которая вторглася в чужую страну (вторжение случилось зимой 2014, сегодня армия РФ вторглася в нашую страну полностью), как влиятельных членов сообщества. You know that there is a large community in Ukraine which is an integral part of the Codeforces community. We demand your reaction to the offensive of the Russian army, which invaded a foreign country (the invasion happened in the winter of 2014, today the Russian army invaded our country completely), as an elite part of this community.

MikeMirzoyanov consider adding a list of people who added the current user as a friend

My current goal is reaching 1400+ rating (top green or bottom cyan). I solved a quiet lot of problems and almost all bottom part of a2oj ladder 1300-1400 problems(50 harder). I realised that 50+% of my ideas are correct, and I often fails at string,bits and dp problems, and sometimes my solves are wrong. Also after holidays I haven't so much time to do cf. So I have some questions: 1) what the better way to develop( solving a2oj 1400-1500, solving 1300-1400 extra problems or solve problems on topics I usually fails. 2) how to test tasks when it's fails on 3-4 test. 3) what to do if I stack on some rating and I cannot solve problems with higher rating?

P.S. sorry for my poor English and I will be grateful for any advicе

Some time ago I used to do competitive programming a lot, but unfortunately I didn't do it a very long time. Now, after the break, I realized that cp is the most interesting thing in my life and want to develop this skill a lot and reach at least 1400 rating by this winter. Please say which topics I need to know and what ranking I need to have on the contest to reach this goal. And please sorry for my poor English.