### Hey codeforces,↵
↵
I built a curated problem sheet for people grinding Div 3/4.↵
Link: https://cf-sheet.vercel.app/↵
↵
↵
↵
#### What's on it:↵
- 70 problems across 800/900/1000, ordered by actual learning difficulty↵
(not just raw CF rating — some 900s are easier than 800s and I explain why)↵
- Div 3 / Div 4 badge on every problem↵
- URL-hash persistence — bookmark your progress, no account needed↵
- 22 recommended Div 3/4 contest rounds to attempt after the sheet↵
↵
#### CF Handle Tracker (tracker page):↵
- Type your CF handle → it checks your submission history via the CF API↵
- Auto-marks everything you've already AC'd on the sheet↵
- No login, no OAuth, nothing stored on my end↵
↵
#### Curation Criteria page explains:↵
- Why CF ratings can be misleading (crowd-sourced from contest performance)↵
- The 5 rules every problem on the sheet must satisfy↵
- How to suggest additions or removals↵
↵
Feedback and problem suggestions welcome in the comments.↵
If you think something shouldn't be here, cite which rule it violates (R1–R5)↵
and suggest a replacement.↵
↵
I hope you found it helpful, you could _Star/Share_ this blog if you liked it!
↵
I built a curated problem sheet for people grinding Div 3/4.↵
Link: https://cf-sheet.vercel.app/↵
↵
↵
↵
#### What's on it:↵
- 70 problems across 800/900/1000, ordered by actual learning difficulty↵
(not just raw CF rating — some 900s are easier than 800s and I explain why)↵
- Div 3 / Div 4 badge on every problem↵
- URL-hash persistence — bookmark your progress, no account needed↵
- 22 recommended Div 3/4 contest rounds to attempt after the sheet↵
↵
#### CF Handle Tracker (tracker page):↵
- Type your CF handle → it checks your submission history via the CF API↵
- Auto-marks everything you've already AC'd on the sheet↵
- No login, no OAuth, nothing stored on my end↵
↵
#### Curation Criteria page explains:↵
- Why CF ratings can be misleading (crowd-sourced from contest performance)↵
- The 5 rules every problem on the sheet must satisfy↵
- How to suggest additions or removals↵
↵
Feedback and problem suggestions welcome in the comments.↵
If you think something shouldn't be here, cite which rule it violates (R1–R5)↵
and suggest a replacement.↵
↵
I hope you found it helpful, you could _Star/Share_ this blog if you liked it!
