Rating predictor for Codeforces

Latest Version

Version
0.6.7
Update
September 29, 2024
Size
44.82KiB
Developer
Category
Users
40,000+
Rating
4.15789 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
Storage
UnlimitedStorage
*://*.codeforces.com/*
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Carrot Extension

Carrot enhances Codeforces ranklists.

For an active contest:
Carrot calculates rating changes according the current standings when you open the ranklist, and displays them in a new column. Carrot also adds a column showing the delta required to rank up. The delta calculation is done in real time a̶n̶d̶ ̶i̶s̶ ̶1̶0̶0̶%̶ ̶a̶c̶c̶u̶r̶a̶t̶e̶ (see note below).

For a finished contest:
Carrot displays the final deltas of each contestant in a new column and shows their rank change, if any, in an adjacent column.

For both active and finished contests, Carrot displays a column for performance, the rating at which the delta would be zero.

Each of Carrot's columns can be toggled according to your preference, so as to not clutter the ranklist more than you would like.

Carrot communicates only with the Codeforces API and runs entirely in the browser.

Note: Since all required data is fetched and processed in the browser, Carrot is not ideal if you have a low data cap on your network. If so I recommend using CF-Predictor instead: https://codeforces.com/blog/entry/50411
Note: The rating calculation is no longer 100% accurate since the new rating system was introduced. See https://github.com/meooow25/carrot/pull/18 for details.

Bug reports/suggestions? Feel free to open an issue at https://github.com/meooow25/carrot/issues
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "Carrot", "version": "0.6.7", "description": "Rating predictor for Codeforces", "icons": { "16": "icons/icon16.png", "32": "icons/icon32.png", "48": "icons/icon48.png", "128": "icons/icon128.png" }, "permissions": [ "storage", "unlimitedStorage", "*://*.codeforces.com/*" ], "background": { "page": "src/background/background.html", "persistent": true }, "content_scripts": [ { "matches": [ "*://*.codeforces.com/*" ], "js": [ "polyfill/browser-polyfill.min.js", "src/content/content.js" ], "css": [ "src/content/content.css" ] } ], "options_ui": { "page": "src/options/options.html", "chrome_style": true }, "browser_action": { "default_icon": "icons/icon128.png", "default_title": "Carrot", "default_popup": "src/popup/popup.html" }}
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How to download and manually install Carrot extension for Chrome

Looking for a way to install Carrot extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Carrot extensions manually, this article outlines two simple methods to effortlessly install Carrot extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Carrot extension and manually install through Drag &Drop

If you ever need to manually install a Carrot extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Carrot Extension by clicking the "Download CRX" button on the website.

Look for the Carrot extension you wish to install. Go to the website and download the Carrot extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Carrot extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Carrot extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Carrot extension for Chrome and install in Developer Mode

This is another method to install Carrot extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Carrot extension file

Select and download the Carrot extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Carrot extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Carrot extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Carrot extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Carrot extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Vaibhav Yadav (ID: 000000df4d640745) Voted 1 ★ - Updated 08/07/2023 not working

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Sorry Peeps (ID: 0000009f5a6f30a1) Voted 2 ★ - Updated 08/07/2023 Not working

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Zyad A (ID: 000000a91b8e7882) Voted 5 ★ - Updated 01/13/2023 i like it, so accurate

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Md Imran Hosen (ID: 000000fc77d8b44e) Voted 5 ★ - Updated 10/23/2022 It's work properly and Predict rating as colse as possible.

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NIKHIL KUMAR (ID: 0000001ef901f111) Voted 1 ★ - Updated 12/29/2021 Not working