์ •๋ณด
This extension offers some key features:

1. Estimate performance and rating during contests (experimental, may be unstable).
2. Add test cases to a problem statement (disabled by default, open the setting popup to enable).
3. Show the status of the problems you have submitted.
4. Allow copying and downloading test cases (each or all) with one click.
5. Simplify debugging with the custom test page.

Blog on Codeforces: https://codeforces.com/blog/entry/133287
Source code: https://github.com/conlacda/atcoder-companion

============================
ไธ‹่จ˜ใฎๆฉŸ่ƒฝใ‚’ๆไพ›ใ—ใฆใ„ใพใ™๏ผš

1. ใ‚ณใƒณใƒ†ใ‚นใƒˆ้–‹ๅ‚ฌไธญใฎใƒ‘ใƒ•ใ‚ฉใƒผใƒžใƒณใ‚นๅ€คใ‚„ใƒฌใƒผใƒ†ใ‚ฃใƒณใ‚ฐใฎ่กจ็คบ๏ผˆๅฎŸ้จ“็š„ใชๆฉŸ่ƒฝ๏ผ‰ใ€‚
2. ๅ•้กŒๆ–‡ใซใƒ†ใ‚นใƒˆใ‚ฑใƒผใ‚นใ‚’่ฟฝๅŠ ๏ผˆใƒ‡ใƒ•ใ‚ฉใƒซใƒˆใงใฏ็„กๅŠนใงใ™ใŒใ€่จญๅฎšใƒใƒƒใƒ—ใ‚ขใƒƒใƒ—ใ‹ใ‚‰ๆœ‰ๅŠนใซใงใใพใ™๏ผ‰ใ€‚
3. ใ€Œๅ•้กŒใ€ใƒšใƒผใ‚ธใงใฎๆๅ‡บ็ŠถๆณใŒ็ขบ่ชใงใใ‚‹ใ€‚
4. ใƒ†ใ‚นใƒˆใ‚ฑใƒผใ‚นใฎใ‚ณใƒ”ใƒผใƒปใƒ€ใ‚ฆใƒณใƒญใƒผใƒ‰ใŠใ‚ˆใณใ‚ณใƒผใƒ‰ใƒ†ใ‚นใƒˆใ‚’ไฝฟใฃใŸใƒ‡ใƒใƒƒใ‚ฐใŒใงใใ‚‹ใ€‚

ใƒใ‚ฐใŒ่ฆ‹ใคใ‹ใฃใŸๅ ดๅˆใฏใ€ใŠ็Ÿฅใ‚‰ใ›ใใ ใ•ใ„ ๐Ÿ˜ƒ!!
Rated 5 by 1 reviewer

๋ณ„์  ์ €์žฅ๋จ