shivamg_isc's blog

By shivamg_isc, history, 5 years ago, In English

Aparoksha is back with the flagship coding event — Alkhwarizm

2 years back, we launched the first ever External Rated Contest on CodechefAlkhwarizm 2017.
Last year's Alkhwarizm 2018 was a great success with over 1100 people participating in the contest.
If you have the appetite for algorithmic problem solving, then don't miss it out!

Contest link is here — Alkhwarizm 2019

It will be a 5 hour individual contest with algorithmic problem-set of diverse nature, and is open for both students as well as professionals.
The contest will comprise 10 problems, and will be rated for both divisions.

The prizes include cash prizes worth INR 20,000, along with Codechef Laddus.

  • For Indian participants:
    • Top 10 from ranklist will receive 300 laddus.
    • Additionally, they get bonus laddus (Bonus = n — contest rank) where 'n' is 11 for short contests.
  • For Global participants:
    • Top 10 from ranklist will receive 300 laddus.
    • Additionally, they get bonus (Bonus = n — contest rank) where 'n' is 11 for short contests.
  • For combined participants:
    • Random Laddus to any 5 users: 200 laddus.
    • First to solve each problem individually: 100 laddus.
    • Country wise participation: Top 10, 20 and 30 will get 30, 40 and 50 laddus as per participation.
    • Country wise performance: 200, 250, 300 laddus as per performance.

So be ready to have a nail-biting experience on April 7, 2019 at 21:00 IST

The problem have been set and tested by satylogin, blake_786, shivamg_isc, priyanshupkm, modi_aashu2, fLUKEmASTER and idiot_owl.

Some of our previous contests — CodeRed 2019, Alkhwarizm 2018, CodeRed 2018, Alkhwarizm 2017, and HumbleFool Cup 2016.

Register here to be eligible to sit on the Iron Throne.

Good luck everyone !

Upd 1 — The contest is about to begin in 1.5 hours.
Upd 2 — The contest is over. Thanks for the huge participation.
And we are sorry for this unbalanced contest.
The initial version of the contest was perfectly balanced. But, each problem of external rated contest has to be reviewed by few people from Codechef.
The initial version of the contest was told to be made rated just for Div 2.
The problem right now with 3rd least number of submissions was marked by them as an EASY-MEDIUM problem, and similarly were the others.
We tried to convince them to make the contest rated for all, as we felt the contest was indeed balanced.
But, finally in order to make the contest rated for all, we had to add harder elements to most of the problems.

We in a way could have agreed to keep the contest rated for just div 2, but that would remain unbalanced for them similarly.
We are sorry again, but please try to understand that the error was not on our part entirely.

Thanks !

The hints will be posted soon.

Upd 3

Congratulations to the top 3 Global winners :D
1. step_by_step — 8 problems
2. KrK — 8 problems
3. uwi — 7 problems

The hints are as follows —

Danny Wants To Know
Weirwood Trees
They are COMING
Arya and the Grid of Stars
Winter Is Here
Cersei and her Soldiers
Game of Theory
Our Enemy does not Tire
Conquer Beyond the Wall
I Promised to Fight for the Living

Detailed Editorials will be posted soon :D

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By shivamg_isc, history, 5 years ago, In English

Hello Codeforces !!

Aparoksha is back with the second edition of the flagship-event CodeRed.
Last year's CodeRed 2018 was a great success with over 900 teams registering for it.
If you have the appetite for algorithmic problem solving, then don't miss it out!

It will be a 4.5 hour long team event with a maximum size of the team being 3 members.
The participants need not be from the same college/institution/organization.

The preliminary round will be held on Codechef, and the onsite round will be held during Aparoksha.

The total prize money is worth INR 125,000 (Including goodies for all teams selected for onsite round, travel expenses* and cash prizes worth INR 50,000).
The best 40 teams will make it to the onsite round.
Also, top 3 teams in the online round will get INR 4500, 2500 and 1500 respectively, along with Codechef Laddus.
All teams making it to the onsite round will get CodeRed T-shirts.

Contest link is here — CodeRed 2019.
The problem set comprises 7 problems of varying difficulty level.

So be ready to have a nail-biting experience on March 2, 2019 at 21:00 IST.

The problems have been set and tested by Shivam Garg (shivamg_isc), Ankit Rao (hybrid), Sahil Prakash (prakashs99), Vaibhav Srivastava (dbest077), Saurabh Kumar (shauryakr) and Mohammad Aquib (aquib786).
Special Thanks to Teja (tejavojjala) and Sacheendra (sacheendra9044) for their valuable input.

Facebook Page — CodeRed Facebook Page

Some of our previous contests —CodeRed 2018, Alkhwarizm 2017 and HumbleFool Cup 2016.

See you in the ENDGAME :D !!

Upd 1:- Contest is about to begin in almost 1 hour. Best of luck :)
Upd 2:- The contest is over, and was a great success with a mammoth 1271 teams registering for the contest.
Thanks for the overwhelming response. :D

Congratulations to the top 5 winners :D

  1. farhodkerimtemurbek — Kerim.K, Farhod
  2. 1e9+7 Bugs Per Second — Ashishgup, Slow_But_Determined, vntshh
  3. PaduKeDeewane — hitman623, Enigma27, _shanky
  4. Ryuzaki — Hiren.Vaghela, Learner99
  5. fast_coders — acraider, nitixkrai, fsociety00

Top 3 teams will get cash prizes of INR 4500, 2500 and 1500 respectively, along with Codechef Laddus. :)
Feedback of the contest in the comments will be highly appreciated :D

The detailed editorials will be posted on Monday.
For now, I am posting the hints.

CR191
CR192
CR193
CR194
CR195
CR196

Upd 3:- The Editorials for the problems are here. We will add for the remaining 2 problems in few hours.

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By shivamg_isc, 6 years ago, In English

Hello Codeforces!

Aparoksha presents to you an all-new flagship event CodeRed in association with ACM.
If you have the appetite for algorithmic problem solving, then don't miss it out!

It will be a 5-hour long team event with a maximum size of the team being 3 members.
The preliminary round will be held on Codechef, and the onsite round will be held during Aparoksha.

The total prize money is worth INR 50,000. The best 40 teams will make it to the onsite round.
Also, top 2 teams in the online round will get INR 3000 and 2000 respectively, along with Codechef Laddus.
All teams making it to the onsite round will get CodeRed T-shirts.

Contest link is here — CodeRed 2018
The problem set comprises 6 problems of varying difficulty level.

So be ready to have a nail-biting experience on February 17, 2018 at 21:00 IST
Register right now at the link given here to be eligible for prize money.

The problems have been set by me (shivamg_isc) and tested by Shiv Dhingra (lucifer2709).
Facebook Page — CodeRed Facebook Page

Some of our previous contests — Alkhwarizm 2017 and HumbleFool Cup 2016.

Great Prizes and Glory await you in the Coding Arena. CODE ON!

Upd 1:- Contest is about to begin in almost 1 hour. Best of luck :)

Upd 2:- The contest is over, and was a great success with about 900 teams registering for the contest.
Thanks for the overwhelming response. :D

Congratulations to the winners :D

  1. Mutability — uwi
  2. Twin Prime — jtnydv25, HackerTina
  3. Accidently in Warsaw — mexmans, YerzhanU
  4. noticeMeSenpai — satylogin, sarkysaurabh, vaibhav138
  5. karma — wittyskull, garuna, abhi_1595

Top 2 teams will get cash prizes of INR 3000 and INR 2000 respectively, along with Codechef Laddus. :)
Feedback of the contest in the comments will be highly appreciated :D

The detailed editorials will be published on Monday.
For now, I am posting the hints.

KRYP1
KRYP2
KRYP3
KRYP4
KRYP5
KRYP6

Upd 3:- Editorials are finally posted. :) Click Here

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