While using Atcoder, I noticed some features I needed were missing, so I developed an extension — [Atcoder Companion](https://chromewebstore.google.com/detail/atcoder-companion/bflhekmjlbpdlibcmojpikplaldgceec).↵
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The extension offers the following features: ↵
1. Adds a status column to the list of problems (inspired by [Atcoder Color](https://chromewebstore.google.com/detail/atcoder-color/mcefknoiablejellmicpmokcaelpdaec)) ↵
![ ](/predownloaded/e5/41/e541347640ea81096abc31b59431a837c7afca20.png)↵
2. Provides performance and rating predictions (inspired by [ac-predictor](https://github.com/key-moon/ac-predictor)) ↵
![ ](/predownloaded/ae/61/ae617ec5125bacc2f7ffd9a4d501dfb2cf57db9b.png)↵
3. Allows for downloading and copying test cases with ease. ↵
![ ](/predownloaded/15/66/1566cbcc4cb98865840ee5c28492433a44d92485.png)↵
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By clicking on the extension icon, you can enable or disable certain features. ↵
The extension's source code is currently messy, so I plan to publish it once I clean it up.↵
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If you encounter any issues while using the extension, please let me know in the comments.↵
Any feedback or ideas for new features are greatly appreciated.↵
↵
The extension offers the following features: ↵
1. Adds a status column to the list of problems (inspired by [Atcoder Color](https://chromewebstore.google.com/detail/atcoder-color/mcefknoiablejellmicpmokcaelpdaec)) ↵
![ ](/predownloaded/e5/41/e541347640ea81096abc31b59431a837c7afca20.png)↵
2. Provides performance and rating predictions (inspired by [ac-predictor](https://github.com/key-moon/ac-predictor)) ↵
![ ](/predownloaded/ae/61/ae617ec5125bacc2f7ffd9a4d501dfb2cf57db9b.png)↵
3. Allows for downloading and copying test cases with ease. ↵
![ ](/predownloaded/15/66/1566cbcc4cb98865840ee5c28492433a44d92485.png)↵
↵
By clicking on the extension icon, you can enable or disable certain features. ↵
The extension's source code is currently messy, so I plan to publish it once I clean it up.↵
↵
If you encounter any issues while using the extension, please let me know in the comments.↵
Any feedback or ideas for new features are greatly appreciated.↵