Hello coders!

I am very disappointed and frustrated after seeing today's rating on Codeforces. I don't remember the last time I saw 3k+ submissions on the 4th problem of a Div 2 contest. I don't think the 2nd and 3rd problems were easy compared to their solutions. I solved three questions in almost one hour, yet my rating only increased by 4 points.

Can you give me some tips on how to increase my speed on Codeforces (to avoid the cheating effect)?

Should I give up on becoming an expert?