We invite you to participate in CodeChef's Starter's 64, today, November 9, rated till 5-stars Coders (i.e. for users with rating < 2200). This contest is organized by Exun Clan, Delhi Public School, R. K. Puram.

Time: 8:00 PM — 11:00 PM IST

Joining us on the setting panel are:

• Setters: Vishesh vishesh312 Saraswat, Ritul ritul_kr_singh Kumar Singh, Utkarsh Utkarsh.25dec Gupta, Satyam satyam343
• Testers: Nishank IceKnight1093 Suresh, Satyam satyam343
• Statement Verifier: Kanhaiya notsoloud1 Mohan
• Video Editorialists: Sundar K , Garvit Virmani, Vibhu Bhatia, Madhav Jha, Suraj Jha, Jwala, Rohit Oze, Adhish Kancharla
• Text Editorialist: Nishank IceKnight1093 Suresh
• Contest Admins: Jeevan JeevanJyot Jyot Singh, Utkarsh Utkarsh.25dec Gupta

High School Students registered here have to participate at https://www.codechef.com/EXUN22MI to be eligible for the following:

• Top 3 High School Students will receive prizes and certificates of merit.
• Top 8 Indian High School Students will be invited for onsite finals at Delhi Public School, R.K. Puram on November 13. More details can be found here.

Registrations are now closed.

Check out our invite if you are interested in participating in other technical events including our flagship Cryptic Hunt X CTF Sudocrypt v12.0.

Written editorials will be available for all on CodeChef Discuss. Pro users can find the editorials directly on the problem pages after the contest.

The video editorials of the problems will be available for all users for 1 day as soon as the contest ends, after which they will be available only to Pro users.

Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef’s contests, you can share them here.

Good luck and we hope you enjoy the contest!

Hello, Codeforces!

We would like to invite you all to participate in the Exun 2021-22 Competitive Programming contest this Wednesday, 12th January 2022 from 8 PM to 11 PM IST.

The contest is rated for both division 2 and 3. Participants of division 1 are also encouraged to participate unofficially to get a chance for prizes. The contest, authored by me and halemon123, will feature 7 problems in all divisions.

I would like to thank:

• Our contest admin, nishant403, for providing invaluable feedback on the problem set.
• knightron00 for helping with preparation.
• iscsi for testing.
• aujasvit_datta, vedantsingh1, DumbbAlgo and halemon123 for helping with testing and writing the editorials.
• Kuroni for verifying the statements.
• CodeChef team for support throughout the preparation.

Participants have to be registered here to be eligible for the following:

• From the Division 1 & 2 combined rank list:
  • Top 3 school students will receive cash & sponsor prizes.
  • Top 25 school students will be awarded certificates.
  • Top 8 Indian school students will qualify for Lockout.
  • Top 16 Indian school students will qualify for Challenge Programming.
• Top 25 school students from the Division 3 rank list will be awarded certificates.

The event is a part of our annual tech symposium Exun 2021-22. If you're interested in participating in other technical events, such as Machine Learning and Hackathons, please check out our invite!

We hope you enjoy solving the problems, good luck!

UPD: The editorials are available here.