Olá Codeforces!

Tomorrow, on August 17, we'll be holding Universidade de São Paulo Try-outs, a competition that aims to select the teams that will represent our university in the Brazilian regionals. We will also run an online mirror contest in Codeforces Gym starting at 14:30 (UTC -3, São Paulo time)!

The link for the mirror in Codeforces: https://mirror.codeforces.com/gym/106039

Contestants should follow ICPC rules. We have prepared challenging and interesting problems suitable for both beginners and veterans. You can check previous contests to get an estimate of the difficulty level.

A huge thanks to all setters and testers for their time and valuable feedback.

We look forward your participation!

Hey!

Me and a couple of friends (victorsenam, gabrielrc) developed a telegram bot to list upcoming contests. The bot lists the main contests from Codeforces, Topcoder, Codechef, CSAcademy and AtCoder!

Checkout the bot here!

You can use /upcoming to list upcoming contests, and the bot will also remind you 1 day and 1 hour before each contest (this can be enabled and disabled using /start and /stop)

NEW!

Now you can add you Codeforces handles and get notifications for rating changes in CF rounds. Use /help_handles to get info on how to add handles.

The code is available on GitHub. Send us your pull requests!

Any comments and bug-reports are appreciated :)

Hi! I'm trying to use Polygon to create some problems, but I'm having difficulties running the code on my machine (Linux, not Windows). I downloaded the Package on Polygon, and there are several scripts (do-all, gen-answer, ...), but no instruction on how to use them. I tried the Help page on the Polygon website, but the link is broken. do-all seems to generate all the tests, but I don't know how to test some code my friends wrote. If it wasn't clear, I have an a.cpp file, and I want to test if it is a correct solution. Is there something on Polygon that helps with that? Or should I do this manually? (And if so, how can I do it safely so some code doesn't mess up my machine?)

Any help or links would be great.

Thank You!