# 🚀 New Tool: Codeforces Division Filter for Problemset (Div. 1, Div. 2, Educational & More!)↵
↵
Hello Codeforces! ↵
↵
Have you ever wanted to easily practice specific types of rounds like *only* Div. 2, *only* Educational Rounds, or *only* Div. 3 on the Problemset page, but found it annoying that there is no native way to filter them? ↵
↵
I've built a **Browser Extension / Tampermonkey Script** that fixes this! ↵
↵
↵
↵
## Features↵
* **Multi-Select Filtering**: You can select multiple categories at once (e.g., check both "Div. 2" and "Educational" to see problems from either).↵
* **OR Logic**: If a problem belongs to any of your selected categories, it stays visible.↵
* **Memory Status**: It securely saves your filter preferences so they remain active even if you refresh or switch to another page in the problemset! ↵
↵
## How to Install (Two Methods)↵
↵
I've provided this tool in two ways: as a **Tampermonkey Userscript** and as a **Chrome Extension ZIP**.↵
↵
### Method 1: The Tampermonkey Script (Easiest)↵
1. Install the [Tampermonkey](https://www.tampermonkey.net/) extension for your browser.↵
2. **Important for All Browsers:**You may need toDue to modern browser security restrictions (like Manifest V3), you must go to your browser's specific Extensions settings page (e.g., `chrome://extensions/` for Chrome, `edge://extensions/` for Edge), find Tampermonkey, and enable **"Developer Mode"** so userscripts run smoothly und), turn on **Developer Mode**, and click "Details" on Tampermonkey to explicitly toggle **"Allow userscripts"** (or "Allow access to file URLs"). Without this, Tamper modern browser security restrictions.nkey scripts might not run!↵
3. **Install from Greasy Fork:** Click the Greasy Fork link in the Links section below and click "Install". Tampermonkey should automatically pop up and prompt you to install it.↵
4. *(Fallback)* If auto-install doesn't work: Open the Greasy Fork script code (or the `userscript.js` file from GitHub), select all, and copy the entire code. Then click the Tampermonkey icon in your browser, select **"Create a new script..."**, completely delete all the default template code it shows you, paste the code you just copied, and finally hit `Ctrl+S` (or File -> Save) to save it.↵
5. Go to the [Problemset page](https://codeforces.me/problemset) and you'll see the filter box on the right!↵
↵
### Method 2: The Chrome Extension (ZIP)↵
If you prefer standalone extensions without Tampermonkey:↵
1. Download the extension ZIP file and extract it to a folder.↵
2. Go to your browser's Extensions page (e.g., `chrome://extensions/` in Chrome).↵
3. Turn on **Developer mode** (usually a toggle in the top right corner).↵
4. Click **"Load unpacked"** and select the folder you extracted.↵
5. You're done!↵
↵
## Links & Downloads↵
* [Install via Greasy Fork](https://greasyfork.org/en/scripts/574069-codeforces-problemset-filter)↵
* [Download Chrome Extension ZIP](https://github.com/Xan-ca/Codeforces_Problemset_Filter/blob/main/cf-filter-extension.zip)↵
* [Source Code / GitHub](https://github.com/Xan-ca/Codeforces_Problemset_Filter)↵
↵
---↵
↵
I hope this tool helps streamline your CP training! Let me know in the comments if you encounter any bugs or have feature requests. Happy coding!↵
↵
↵
Note : If anyone wants to publish the chrome extension they may feel free to do so i just didnt wanna pay 5$ lol, i can include the link in this blog later↵
↵
↵
↵
↵
Hello Codeforces! ↵
↵
Have you ever wanted to easily practice specific types of rounds like *only* Div. 2, *only* Educational Rounds, or *only* Div. 3 on the Problemset page, but found it annoying that there is no native way to filter them? ↵
↵
I've built a **Browser Extension / Tampermonkey Script** that fixes this! ↵
↵
↵
↵
## Features↵
* **Multi-Select Filtering**: You can select multiple categories at once (e.g., check both "Div. 2" and "Educational" to see problems from either).↵
* **OR Logic**: If a problem belongs to any of your selected categories, it stays visible.↵
* **Memory Status**: It securely saves your filter preferences so they remain active even if you refresh or switch to another page in the problemset! ↵
↵
## How to Install (Two Methods)↵
↵
I've provided this tool in two ways: as a **Tampermonkey Userscript** and as a **Chrome Extension ZIP**.↵
↵
### Method 1: The Tampermonkey Script (Easiest)↵
1. Install the [Tampermonkey](https://www.tampermonkey.net/) extension for your browser.↵
2. **Important for All Browsers:**
3. **Install from Greasy Fork:** Click the Greasy Fork link in the Links section below and click "Install". Tampermonkey should automatically pop up and prompt you to install it.↵
4. *(Fallback)* If auto-install doesn't work: Open the Greasy Fork script code (or the `userscript.js` file from GitHub), select all, and copy the entire code. Then click the Tampermonkey icon in your browser, select **"Create a new script..."**, completely delete all the default template code it shows you, paste the code you just copied, and finally hit `Ctrl+S` (or File -> Save) to save it.↵
5. Go to the [Problemset page](https://codeforces.me/problemset) and you'll see the filter box on the right!↵
↵
### Method 2: The Chrome Extension (ZIP)↵
If you prefer standalone extensions without Tampermonkey:↵
1. Download the extension ZIP file and extract it to a folder.↵
2. Go to your browser's Extensions page (e.g., `chrome://extensions/` in Chrome).↵
3. Turn on **Developer mode** (usually a toggle in the top right corner).↵
4. Click **"Load unpacked"** and select the folder you extracted.↵
5. You're done!↵
↵
## Links & Downloads↵
* [Install via Greasy Fork](https://greasyfork.org/en/scripts/574069-codeforces-problemset-filter)↵
* [Download Chrome Extension ZIP](https://github.com/Xan-ca/Codeforces_Problemset_Filter/blob/main/cf-filter-extension.zip)↵
* [Source Code / GitHub](https://github.com/Xan-ca/Codeforces_Problemset_Filter)↵
↵
---↵
↵
I hope this tool helps streamline your CP training! Let me know in the comments if you encounter any bugs or have feature requests. Happy coding!↵
↵
↵
Note : If anyone wants to publish the chrome extension they may feel free to do so i just didnt wanna pay 5$ lol, i can include the link in this blog later↵
↵
↵
↵
