Hello everyone!

I created this simple training that contains 100 Problems "graphs, dfs and similar, dsu".

Difficulty of problems from 1200 to 1700

Group link: Graphs Problems

Welcome all suggestions for improving training

Good luck everyone!

Hello everyone!

Mathematics is very important, So I created this simple training that contains 200 Problems "Math"

Difficulty of problems from 1200 to 2100

Group link: Math Problems

Welcome all suggestions for improving training

Good luck everyone!

Hello everyone!

Games and Geometry Two branches are very important, And usually their problems are difficult.

So I created this simple training that contains 100 problems "Games" and 100 problems "Geometry".

Group link: Games and Geometry Problems.

All problems in both branches are arranged in order of difficulty!

Welcome all suggestions for improving training

Good luck everyone!

Hello everyone!

I have prepared a practice training containing 500 problems, Problems difficulty: from 1500 to 1900,

These a 500 problems were divided into 25 weeks to become 20 problems per week, of course you can solve more or less than that in a week as you like!!

Practice Training Group Group link

UPD : Added 100 problems for beginners, difficulty: 1000

Welcome all suggestions for improving training!

Good luck everyone

Hello everyone!

I have collected some codeforces extensions that were created by users.

• CF-Predictor — Know your rating changes Blog Link
• Codeforces Practice Tracker — Browser Extension Blog Link
• Presenting Codeforces Optimal Theme Blog Link
• UpSolve.me | Efficient Codeforces Practice Blog Link
• Colorize standings by used programming language Blog Link
• [UPD: 22 July 2020 -- v.1.2] Codeforces Enhancer — Chrome Extension Blog Link
• Multiple rating graph with other accounts Blog Link
• Google Chrome extension for automatic sample case testing on Codeforces Blog Link
• CF X-Users : Website For X-Users Blog Link
• Codeforces Watcher 1.7.0 (Asimov): User Profile UI and few more updates Blog Link
• Codeforces WatchR 1.6.0: Localization, UX/UI polishes and bug fixes Blog Link
• Average number of problems solved during a contest per rating Blog Link
• Multiple rating graph with other accounts Blog Link
• Codeforces Chrome Extension for FB Blog Link
• Dogeforces (now available in Chrome extension!!) Blog Link
• [Coder's Calendar] Chrome extension for Competitive Programming Blog Link
• Google Chrome Extension Blog Link
• Codeforces Problem Tracker Chrome Extension Blog Link
• An awesome list for competitive programming! Blog Link
• Codeforces Visualizer Android App Blog Link
• CF Submission Count — Browser Extension Blog Link
• Introducing Codeforces standings by country Blog Link
• Codeforces Data Scraping Websites, Ashishgup list, Blog Link
• Dark mode in codeforces Blog Link
• Change rating and Contribution (CF no steroids) Blog Link
• Chrome/Firefox Extension to analyse Codeforces profiles Blog Link
• Similar Problems Webservice Blog Link
• [chrome extension] Codeforces Customizer Blog Link
• Chrome/Firefox Extension to analyse Codeforces profiles Blog Link
• Introducing CF Stonks — A Virtual Stock Market Based on Your CodeForces Rating! Blog Link

some useful site:

• Graph editor
• Gravy
• Competitive programming comparator
• Codeforces Visualizer site
• CodeHunt
• Geometry Widnet
• Diff Tool

If someone knows any extensions I haven't added, please let me know!

Hello everyone!

I have set up a training for beginners, The training focuses on solving various problems on Codeforces.

Training that contains: 100 Problems (A) and 100 Problems (B). and 50 Problems (C).

Tags of problems in the training:

Problems Difficulty: from 800 to 1500.

Problems links:

Newcomers group of my community Group link

Thank you nooinenoojno to create a training group, Group link

Welcome all suggestions for improving training!

Good luck everyone!