The Round 3 of the Algorithm Competition of 2021 Topcoder Open is happening! It will take place on [SatThursday, July 8 at 07:00 UTC -4](https://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO21+Round+3&iso=20210708T07&p1=98). ↵
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Please note that you must register for this round in the Arena. Registration is now open for the round in the [Arena or Applet](http://topcoder.com/community/arena) and will close 5 minutes before the match begins, so make sure that you are all ready to go. [Click here to what time it starts in your area](https://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO21+Round+3&iso=20210708T07&p1=98). ↵
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There will be a parallel rated round for those who are not eligible to compete.↵
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**Members eligible to compete in the Parallel Round include:** ↵
\- Who did not qualify for Round 3 ↵
\- [Qualified for Round 4](https://tco21.topcoder.com/competition-overview/algorithm/round-4) or [TCO21 Algorithm Finals](https://tco21.topcoder.com/competition-overview/algorithm/leaderboard) from Online Stages 1, 2, 3 and 4 ↵
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**Don’t know how to compete in Topcoder Algorithm Competitions?** ↵
Check out [this guide](https://www.topcoder.com/community/competitive-programming/how-to-compete) to successfully compete in an algorithm match.↵
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You can compete using:↵
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- [Topcoder Java Applet](https://www.topcoder.com/contest/arena/ContestAppletProd7.2.jnlp) - You can refer to [this guide](https://drive.google.com/open?id=1gVJZxhWYMuUNx3PfSSTkkk-b9AeJkL4j) here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)↵
- [Topcoder Web Arena(Beta)](https://arena.topcoder.com/) - Please watch [this video](https://youtu.be/INc96_Rl6u0) for step by step guide↵
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**Some Important Links**↵
[Match Results](https://community.topcoder.com/stat?c=round_overview) (match results, rating changes, challenges, individual test case results), [Problem Archive](https://community.topcoder.com/tc?module=ProblemArchive), [Problem Writing](https://www.topcoder.com/thrive/articles/Write%20Problems%20for%20Topcoder), [Algorithm Rankings](https://www.topcoder.com/tc?module=AlgoRank), [Editorials](https://www.topcoder.com/?s=Editorials) and [Older Editorials(SRM 710 and before)](https://www.topcoder.com/thrive/tracks?track=Competitive%20Programming&tax=SRM%20Editorials), ↵
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Best of luck to you in the Arena! ↵
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\- The Topcoder Community team
↵
Please note that you must register for this round in the Arena. Registration is now open for the round in the [Arena or Applet](http://topcoder.com/community/arena) and will close 5 minutes before the match begins, so make sure that you are all ready to go. [Click here to what time it starts in your area](https://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO21+Round+3&iso=20210708T07&p1=98). ↵
↵
There will be a parallel rated round for those who are not eligible to compete.↵
↵
**Members eligible to compete in the Parallel Round include:** ↵
\- Who did not qualify for Round 3 ↵
\- [Qualified for Round 4](https://tco21.topcoder.com/competition-overview/algorithm/round-4) or [TCO21 Algorithm Finals](https://tco21.topcoder.com/competition-overview/algorithm/leaderboard) from Online Stages 1, 2, 3 and 4 ↵
↵
**Don’t know how to compete in Topcoder Algorithm Competitions?** ↵
Check out [this guide](https://www.topcoder.com/community/competitive-programming/how-to-compete) to successfully compete in an algorithm match.↵
↵
You can compete using:↵
↵
- [Topcoder Java Applet](https://www.topcoder.com/contest/arena/ContestAppletProd7.2.jnlp) - You can refer to [this guide](https://drive.google.com/open?id=1gVJZxhWYMuUNx3PfSSTkkk-b9AeJkL4j) here to set up the applet. (Note that those who have Java 8 installed on their machine will see a security issue — You will have to add Topcoder in security exceptions in Java Control Panel. Please refer to the details in the guide.)↵
- [Topcoder Web Arena(Beta)](https://arena.topcoder.com/) - Please watch [this video](https://youtu.be/INc96_Rl6u0) for step by step guide↵
↵
**Some Important Links**↵
[Match Results](https://community.topcoder.com/stat?c=round_overview) (match results, rating changes, challenges, individual test case results), [Problem Archive](https://community.topcoder.com/tc?module=ProblemArchive), [Problem Writing](https://www.topcoder.com/thrive/articles/Write%20Problems%20for%20Topcoder), [Algorithm Rankings](https://www.topcoder.com/tc?module=AlgoRank), [Editorials](https://www.topcoder.com/?s=Editorials) and [Older Editorials(SRM 710 and before)](https://www.topcoder.com/thrive/tracks?track=Competitive%20Programming&tax=SRM%20Editorials), ↵
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Best of luck to you in the Arena! ↵
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\- The Topcoder Community team
