Hello Codeforces Community!

I invite you all to join HackerRank's 101 Hack 54 on May 2, 2018, at 15:00 UTC.

There will be five problems in the round and three hours for you to solve them. The contest will be rated and the top ten contestants will receive HackerRank T-shirts!

Top 100 coders will get contacted by HackerRank for a job opportunity. (India only)

The problems are prepared by me. Thanks to kevinsogo, who tested and helped in setting up this contest.

I hope you’ll enjoy the problems and find them interesting.

Good luck and happy coding!

Hello Codeforces Community!

Happy New Year to all!

I invite you all to join HackerRank's HourRank 25 on January 2, 2018, at 20:30 IST.

There will be three tasks in the round and one hour for you to solve them. The contest will be rated and the top ten contestants will receive HackerRank T-shirts!

The problems are prepared by me and tested by niyaznigmatul. Thanks to kevinsogo for help in setting up this contest.

I hope you’ll enjoy the problems.

Good luck and Happy Coding!

Hi!

On Monday, July 31, 2017, at 14:35 UTC rated Codeforces Round #427 for participants from the second division will take place. As always, participants from the first division can take part out of competition.

The problems for this round were prepared by me. Many thanks to Alexey Ilyukhov (Livace) for help in preparations of the round and testing the problems, AmirReza PoorAkhavan (Arpa) for proofreading the statements and testing the problems, Gaev Alexandr (krock21) for testing the problems, Nikolay Kalinin (KAN) for the round coordination and, of course, Mike Mirzayanov (MikeMirzayanov) for great Codeforces and Polygon platforms.

The round will last for 2 hours, and you will be given 6 problems. I recommend you to read the statements of all problems. I hope everyone will find an interesting problem!

Scoring will be announced before the round.

Scoring: 500 — 750 — 1250 — 1500 — 2250 — 2250.

UPD.

Thanks for participating!

The editorial is here.

Congratulations to the winners!

Div2:

1. ywwyww

2. nick452

3. JustAnAverageCoder123

4. cxt

5. wa1tz7I9

Div1:

1. dotorya

2. rajat1603

3. anta

4. Kaban-5

5. HellKitsune

I want to ask people who has already prepared Codeforces contests: how long had you been waiting for a response?

I have no response for more than 6 weeks... It's really disappointing.