How to Get Started on Codeforces: A Beginner’s Guide to Competitive Programming

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Introduction

Codeforces is one of the best platforms for improving your problem-solving skills and preparing for competitive programming contests. If you're new to Codeforces, this guide will help you get started and boost your skills step by step.

Step 1: Understand the Rating System

Codeforces assigns you a rating based on your performance in contests.
As a beginner, don’t worry too much about the rating. Focus on learning and solving problems.
Here's a quick breakdown of the rating system:
Newbie (less than 1200)
Pupil (1200-1399)
Specialist (1400-1599)
... (list other divisions briefly).

Step 2: Solve Problems Effectively

Start by solving problems rated 800 or 900.
Gradually increase the difficulty as you improve.
Use the “Problems” tab to filter problems by rating and number of submissions.

Step 3: Participate in Contests

Compete in Codeforces rounds to practice solving problems under time pressure.
Learn from others by reading editorial solutions after the contest.

Step 4: Use Helpful Tools

Virtual Contests: Simulate past contests to improve your speed.
Tags: Use problem tags (e.g., math, greedy, dp) to focus on specific topics.

Step 5: Common Mistakes to Avoid

Skipping easy problems: Always build a strong foundation with simple problems.
Focusing on rating too early: Learning is more important than rating.

Step 6: Suggested Resources

CP Algorithms: A great resource for algorithms and data structures.
YouTube channels like "Errichto" or "SecondThread" for learning advanced techniques.

Conclusion

Remember, competitive programming is a marathon, not a sprint. Stay consistent, practice regularly, and don’t be afraid to ask for help when you’re stuck. Good luck, and happy coding!

These are the best group links to solve the problem for beginners :

https://codeforces.net/group/MWSDmqGsZm/contests

https://codeforces.net/group/KQlzWufN6x/contests

https://codeforces.net/group/yeVhAfeK6s/contests

https://codeforces.net/group/yDgfwmKNMS/contests

https://codeforces.net/group/xVLE81LHxg/blog

https://codeforces.net/group/n3sTiYtHxI/contests