We invite you to participate in CodeChef’s Starters 221, this Wednesday, 14th January, rated for 6 stars (i.e. for users with rating < 2500).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Contest Admin and Setter: Vaibhav kingmessi Khater

• Tester and Statement Verifier: Archit Pols_Agyi_Pols Kumar

• Text Editorialist: Nishank IceKnight1093 Suresh

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems 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. Hope to see you participating.

Good Luck!

Good day Codeforces ✨

We are excited to invite you all to Codeforces Round 1067 (Div. 2), starting at Nov/29/2025 17:35 (Moscow time).

This round features 6 problems to be scored in 2 hours, with a few problems including multiple parts. All tasks were authored and prepared by koderkushy and me. This round will be rated for all participants with rating below 2100. Take a look at all the problems, we hope you enjoy the challenge! 🚀

We extend many thanks to our team for helping make this round possible:

• abc864197532 for his excellent coordination.
• KAN for preliminary review.
• Testers lineup: Dominater069, dreamoon_love_AA, Fysty, amano_hina, _istil, __baozii__, IceKnight1093, CoderAnshu, Pols_Agyi_Pols, sv1shan, piyush_pransukhka, a.out, BiggestOtaku, Bucketsmith, -firefly-, satyam343, plAtEaUpUs, omsincoconut, snasibov05, homelanderrr, _helloLad, BladeRunner, deneribeiro10, Rafio, balakrishnan, UniversalAdmin
• Alexdat2000 for translation problem statements into Russian.
• MikeMirzayanov and KAN for lovely platforms Codeforces and Polygon.
• And of course, you, for taking part! 💛

Score Distribution: $$$500-1250-1500-2000-2750-(2500+1000)$$$ 🏆

UPD: Congrats to the winners!

• 🥇 StarSilk
• 🥈 Noobish_Monk
• 🥉 Mon_ster
• BurnedChicken
• ec3e9a2e8e

Kudos to antontrygubO_o for almost getting to the intended solution of F2 in contest!

UPD 2: The editorial is out.

We invite you to participate in CodeChef’s Starters129, this Wednesday, 10th April, rated for till 5-Stars(ie. for users with rating < 2200).

Time: 8:00 PM — 10:00 PM IST

Joining us on the problem setting panel are:

• Setters: Archit Pols_Agyi_Pols Kumar, Vaibhav kingmessi Khater.

• Tester: Aryaman WAtoAC2001 Das.

• Text Editorialists:Nishank IceKnight1093 Suresh.

• Statement Verifier: Nishank IceKnight1093 Suresh.

• Contest Admin : Mridul MridulAhi Ahi, Nishank IceKnight1093 Suresh.

Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems 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. Hope to see you participating.

Good Luck!