Just use AI ===============, I'm kidding, if you want to go from 0 to 1400 in 1 month, review the questions from previous contests every day, for example, if you want to start from 0, try to work on the questions A, B, C, D in div 4 yourself. If your rating reaches 800, go to div 3, work on questions A and B, and continue like that. If the questions in div 3, A, B, C, are easy for you, go to div 2, don't use AI. It won't help you if you use AI. If you don't understand the question, look at its explanations on YouTube or elsewhere. This is how I got to 1400 in 1 month.
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Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)
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In my opinion this is the best way
Can you explain these two submissions for B during your last rated contest? This and this are sent within 1 minute of each other.
Look at the time, I sent it in 1 hour, I'll write down the codes, I said that first, in div 2, it took less than 5 seconds to send issue C, I won't do it again and look at the A problem I was bored so I writed this also in B
I think if someone is a beginner and is starting their problem-solving journey directly from Codeforces, then it will be quite difficult for them to reach 1400 in one month or within 15 contests.
However, if someone has already solved a good number of problems on other platforms and then shifts to Codeforces, reaching 1400 within 15 contests is not that difficult.
In my case, I have solved around 1500+ problems on LeetCode and GFG. My current rating on Codeforces is 1331 after 9 contests, and I’m hoping to reach 1400+ in the next 4–5 contests.
You're right, it's hard to move to codeforces without knowing how to solve problems, especially in contests.