Hello Codeforces,
ICPC Amritapuri Regional will be hosting next team practice round on CodeDrills on Tuesday, 25th May 2021. There will be 5 problems to be solved in 2.5 hours.

Contest Details

• Contest Link — Amritapuri Practice Session #7
• Date & Time — 25 May 2021, Tuesday, 18:30 IST
• Duration — 2.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)
• It is a team contest and it would be unrated.

Registration

• You will need to create a team on the contest page in order to participate.
• Team size can be upto 3.
• While creating the team, add the registered emails of other users to invite them to join your team. They will get an invite email, ask them to accept.
• For more details on team registration, refer this guide.

Note : Register your teams & accept invites before the start of the contest. This won't be allowed after contest starts!

Prizes

• Cash prizes of INR 35000 for top 15 teams.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes but everyone can participate.
• Prize money is per team.

Joining me on the problem setting panel are:

• Setters: Aryan aryanc403 Choudhary, Chaithanya Dragonado Shyam, Aswin aswinashok44 Ashok, Bipin bipinb1994 B and Vichitr Vichitr Gandas
• Testers: Aswin aswinashok44 Ashok, Mayank katana_handler Pugalia, Chaithanya Dragonado Shyam, Balajiganpathi Balajiganapathi S and Vichitr Vichitr Gandas
• Admin: Vichitr Vichitr Gandas

I would like to thank all of them for the round preparation. Along with them I would also like to thank

• Balajiganpathi Balajiganapathi S, and Ashish Ashishgup Gupta for suggestions and improvements.
• Deepa deepa_panwar Panwar for developing amazing CodeDrills platform.
• Mike MikeMirzayanov Mirzayanov for amazing Polygon platform.

I hope you will enjoy solving the problems. Any feedback is appreciated after the contest.

Good Luck & Have Fun!
Hope to see you participating!!

UPDATES:

• Contest is over. Thanks for great participation. Problems are public and available for practice now.
• Submissions are also public. You can view others submissions from leaderboard.
• Editorials are published for all problems except Alibaba and Thieves. View them on Editorial tab on the problem page.
• If there are any doubts on the problems or solutions, ask them on this blog or on CodeDrills Discuss.
• Editorial for Alibaba and Thieves is also published now.

Hello Codeforces,
ICPC Amritapuri Regional will be hosting next team practice round on CodeDrills on Tuesday, 13th April 2021. There will be 5 problems to be solved in 2.5 hours.

Contest Details

• Contest Link — Amritapuri Practice Session #6
• Date & Time — 13 Apr 2021, Tuesday, 20:00 IST
• Duration — 2.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)
• It is a team contest and it would be unrated.

Registration

• You will need to create a team on the contest page in order to participate.
• Team size can be upto 3.
• While creating the team, add the registered emails of other users to invite them to join your team. They will get an invite email, ask them to accept.
• For more details on team registration, refer this guide.

Note : Register your teams & accept invites before the start of the contest. This won't be allowed after contest starts!

Prizes

• Cash prizes of INR 35000 for top 15 teams.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes but everyone can participate.
• Prize money is per team.

Joining me on the problem setting panel are:

• Setters: Mayank katana_handler Pugalia, Chaithanya Dragonado Shyam, Vaibhav xennygrimmato Tulsyan, Aswin aswinashok44 Ashok and Vichitr Vichitr Gandas
• Testers: Aswin aswinashok44 Ashok, Mayank katana_handler Pugalia, Aditya asdoc Sarode, Subhankar badSHAH Shah and Vichitr Vichitr Gandas

I would like to thank all of them for the round preparation. Along with them I would also like to thank

• Balajiganpathi Balajiganapathi S, and Ashish Ashishgup Gupta for suggestions and improvements.
• Deepa deepa_panwar Panwar for developing amazing CodeDrills platform.
• Mike MikeMirzayanov Mirzayanov for amazing Polygon platform.

I hope you will enjoy solving the problems. Any feedback is appreciated after the contest.

Good Luck & Have Fun!
Hope to see you participating!!

UPD: Thanks for participating! Editorials(small write ups) are out!!! All AC submissions have been made public.

Hello Codeforces,
ICPC Amritapuri Regional will be hosting next team practice round on CodeDrills on Sunday, 28th March 2021. There will be 5 problems to be solved in 2.5 hours.

Contest Details

• Contest Link — https://codedrills.io/contests/amrita-icpc-practice-session-5
• Date & Time — 28 Mar 2021, Sunday, 20:00 IST
• Duration — 2.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration

• You will need to create a team on the contest page in order to participate.
• Team size can be upto 3.
• While creating the team, add the registered emails of other users to invite them to join your team. They will get an invite email, ask them to accept.
• For more details on team registration, refer this guide.

Note: Register your teams & accept invites before the start of the contest. This won't be allowed after contest starts!

Prizes

• Cash prizes of INR 35000 for top 15 teams.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes but everyone can participate.
• Prize money is per team.

I hope you will enjoy solving the problems. Any feedback is appreciated after the contest.

Good Luck & Have Fun!
Hope to see you participating!!

UPD: Thanks for participating! Editorials are out!!! All submissions have been made public.

I would like to thank everyone who helped in the round preparation.

• Admin: Vichitr Vichitr Gandas
• Problem Setters: Jatin rivalq Garg, Chaithanya Dragonado Shyam, Vaibhav xennygrimmato Tulsyan and Vichitr Vichitr Gandas
• Aswin aswinashok44 Ashok and Mayank katana_handler Pugalia for the help in round testing.
• Balajiganpathi Balajiganapathi S, Divyansh failed_coder Verma and Ashish Ashishgup Gupta for suggestions and improvements.

Finally I would like to congratulate all the winners:

1. rdopti: Rahul amnesiac_dusk Dugar
2. Back Again: Raja raja1999 Vardhan, Tejavardhan teja349 Reddy
3. NITT 1: Aditya kumaraditya1999 Kumar, Vivek Raveendran, Sudharsan Srikanth
4. Return0: Arihant K R, Himanshu HimanshuG Garg, Anay AwakeAnay Karnik
5. Invariant: Abhishek darklight13 Chopra, Ravi Kishan, Snigdh Sixpathsguy Sinha
6. god_in_my_team: Debajyoti little_angel Dasgupta, Naman namanjain0501 Jain, Praagy frost_ Rastogi
7. Squirtle Squad: Arsh Nightmare05 Mahajan, Chandan Kumar, Shubhankar Amitabh
8. Codechef hi badiya tha: Lavish Gupta, Rishabh far_from_NOOB Gupta, Utkarsh Gupta
9. itna-naam-bhi-nahi-karna: Abhishek AK.... Kumar, Kshitij Parwani, Smit Lunagariya
10. Evil Geniuses: Vineet Kumar Dhandharia, Kaustubh Miglani, Pranav Sanjay Maral
11. BForBruteForce: Anubhab Das, Arka Choudhuri, Deepamoy Yomapeed Pal
12. gib money: Alok Kumar Singh, Diptarag Ray GoatTamer Chaudhuri, Shubham Pandey
13. no_ones: Abhishek Jha, Aman Singh
14. concon: Carlos cjoa Joa
15. Venom: Nikhil Believe Choudhary, Shivang segment_tea Bhawsar

The winners list is not final. Plagiarism check will be done later! Also non-Indian teams wont be eligible for prizes.

Hello Codeforces,
ICPC Amritapuri Regional will be hosting next team practice round on CodeDrills on Sunday, 14th March 2021. There will be 4 or 5 problems to be solved in 1.5 hours.

Contest Details

• Contest Link — https://codedrills.io/contests/amrita-icpc-practice-session-4
• Date & Time — 14 Mar 2021, Sunday, 21:00 IST
• Duration — 1.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration

You will need to create a team on the contest page in order to participate. Team size can be upto 3. While creating the team, add the registered emails of other users to invite them to join your team. They will get an invite email, ask them to accept. For more details on team registration, refer this guide.
Note: Register your teams & accept invites before the start of the contest. This won't be allowed after contest starts!

Prizes

• Cash prizes of INR 35000 for top 15 teams.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes but everyone can participate.
• Prize money is per team.

I hope you will enjoy solving the problems. Any feedback is appreciated after the contest.

Good Luck & Have Fun!
Hope to see you participating!!

UPD1: We intend not to penalize compilation errors. Penalties shown on leaderboard are not final. We will recalculate scoreboard after the contest to remove compilation error penalties!
UPD2: Issue with the scoreboard is fixed now! Thanks for participating!
UPD3: All problems are public & available for practice! Submissions are also public now! Check others accepted solutions on leaderboard page.

Hello Codeforces!
CodeDrills will be hosting its first team contest CodeDrills Beta Contest #3 on Sunday, 7th March, 2021 9:00 PM — 10:30 PM IST. There will be 4 or 5 problems to be solved in 1.5 hours.

Contest Details

• Contest Link — https://codedrills.io/contests/beta-contest-3
• Date & Time — 7 Mar 2021, Sunday, 21:00 IST
• Duration — 1.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration
You will need to create a team on the contest page in order to participate. Team size can be upto 3. While creating the team, add the registered emails of other users to invite them to join your team. They will get an invite email, ask them to accept. For more details on team registration, refer this guide.

I hope you will enjoy solving the problems.
Hope to see you participating!!!

Thanks everyone for participating. Editorials are out for all the problems. Solutions wont be visible if you are not logged in.

Congratulations to the winners!
1. Unbreakable — Nishant nishant403 Shah, Taranpreet taran_1407 Singh
2. Onyan — Nishank IceKnight1093 Suresh
3. TodoMihnator — Alexandru atodo Todoran

Note:
For practice, users are not able to submit the solutions on contest page, we will fix it.
All problems after the contest will be added to competitive section — https://codedrills.io/competitive. So you can still submit from here.
Attaching all problem links for practice -
1. https://codedrills.io/problems/new-virus-spread
2. https://codedrills.io/problems/stack-of-boxes
3. https://codedrills.io/problems/relics-collection
4. https://codedrills.io/problems/phone-and-chargers
5. https://codedrills.io/problems/expected-empty-chess-squares

Hello Everyone,

We are looking for problem setters on CodeDrills. The problems will be used for beta/regular contests or some ICPC practice contests. If you have some problem ideas, you can purpose them here. Before submitting any problem idea, please read the guidelines here. Any other required information is provided on the guidelines page.

We have more requirements for medium or harder problems! Though you can submit problems with less difficulty as well. If you have multiple problem ideas, submit the form multiple times. If we like your problem idea, we will reach out to you for further process!

Hello Codeforces,
I invite you to participate in the ICPC Amritapuri Practice Session #3 hosted on CodeDrills in coordination with ICPC Amritapuri. It would be a 1.5 hours long contest having 4 problems of varying difficulty.

Contest Details

• Contest Link — https://codedrills.io/contests/amrita-icpc-practice-session-3
• Date — 14 Feb 2021, Sunday
• Start Time — 20:30 IST
• Duration — 1.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration

You will need an account on CodeDrills to participate in the contest. If you have not signed up on CodeDrills yet, do so here. If you already have an account, no extra registration is required.

Prizes

• Cash prizes of INR 35000 for top 15 ranks.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes but everyone can participate.

Special News

• We have launched profile feature. Access it here — https://codedrills.io/profile. Please add your Codeforces/Codechef account and verify it.
• We have launched CodeDrills Campus Chapter Program, to be a part of it, please have a look here — https://codedrills.io/campus-chapter-program.

I hope you will enjoy solving the problems. Any feedback is appreciated after the contest.

Good Luck & Have Fun!
Hope to see you participating!!

UPD1: Editorial/solution outlines are out! Check them under Editorial tab for a particular problem!

UPD2: We have also received some feedback on penalty rules of the contest and will be looking to tweak them in future contests.

Hello Codeforces,
I invite you to participate in the ICPC Amritapuri Practice Session 2 hosted on CodeDrills in coordination with ICPC Amritapuri. It would be a 1.5 hours long contest having 4 problems of varying difficulty giving you a flavor of ICPC Amritapuri Regionals.

Contest Details

• Contest Link — https://codedrills.io/contests/amrita-icpc-practice-session-2
• Date — 27 Dec 2020, Sunday
• Start Time — 21:00 IST
• Duration — 1.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration

You will need an account on CodeDrills to participate in the contest. If you have not signed up on CodeDrills yet, do so here. If you already have an account, no extra registration is required.

Prizes

• Cash prizes of INR 35000 for top 15 ranks.
• 1st Place — INR 5000
• 2nd, 3rd Places — INR 4000 each
• 4th, 5th, 6th Places — INR 3000 each
• 7th, 8th, 9th, 10th Places — INR 2000 each
• 11th, 12th, 13th, 14th, 15th Places — INR 1000 each
• Only Indian participants are eligible for prizes.

I hope you will enjoy solving the problems. Please, give your feedback on the problem set in the comments below, after the contest.

Good Luck & Have Fun!
Hope to see you participating!!
Happy Programming!!!

Hello Codeforces,
I invite you to participate in the ICPC Amritapuri Practice Session hosted on CodeDrills. It would be a 1.5 hours long contest having 3 problems of varying difficulty giving you a flavor of ICPC Amritapuri Regionals.

Contest Details

• Contest Link — https://codedrills.io/contests/amrita-icpc-practice-session-1
• Date — 6 Dec 2020, Sunday
• Start Time — 17:30 PM IST
• Duration — 1.5 Hours
• Will follow standard ICPC scoring system (20 minutes penalty and 1 point per problem)

Registration

You will need an account on CodeDrills to participate in the contest. If you have not signed up on CodeDrills yet, do so here. If you already have an account, no extra registration is required.

I hope you will enjoy solving the problems. Please, give your feedback on the problem set in the comments below, after the contest.

Good Luck & Have Fun!
Hope to see you participating!!
Happy Programming!!!

UPD1: Congratulations to the winners!
1. Tanmay Rathi
2. Sriram V
3. Kshitij Agrawal

UPD2: Editorial is out.

Hello Codeforces community!!!

I invite you to Phoenix 1.0 — a coding contest organised by BFME and sponsored by CodingBlocks. BFME is a part of IET NITK and promotes competitive programming at NITK.

The contest will take place on 8th May 2019 at 20:30 IST. Contest duration is 4 hours.

The problems are written and prepared by me, Divyansh Verma (failed_coder), Rupesh Nitnaware (IMGR00T) and Abhishek Ranjan. Thanks to Barun Kumar Acharya (bka_hackman) for testing the problems.

You will be given 6 or 7 or 8 problems and 4 hours to solve them. All problems carry equal points. There is a penalty of 5 minutes for each wrong submission. The leaderboard will be ACM-ICPC style.

Contest link — Phoenix 1.0

Our previous contests — Beat This Up, BFME 1.0.

If you love to solve algorithmic challenges then don't miss out.

Hope you will have fun solving the problems. Good luck everyone!
Happy Coding!!!

UPD1:
Overall Winners:
1. Pruthvi Raju (Pruthvi_raju)
2. Dibyadarshan Hota (dibyadarshan)
Girl's Winner:
1. Veena Nagar

Congratulations to the winners!

UPD2: Editorials are out.