kevinsogo's blog

By kevinsogo, history, 9 months ago, In English,

Hello, CodeForces Community!

HackerRank's Week of Code 38 is starting today, June 18th 7:00am UTC.

Each day, from Monday to Saturday, we'll unlock a new challenge for you to solve. The contest is rated and the top 10 hackers will win HackerRank T-shirts.

The maximum score for each problem decreases by 10% at the end of every 24 hours. Also, your submissions will run on hidden test cases at the end of every 24 hours.

The contest problems are written and tested by kevinsogo, koca_kodza, ashmelev, Saurabh42, VastoLorde95, nonsequitur, shashank21j, zemen, pkacprzak, boleyn.su, niyaznigmatul. (I assume these people use the same CF and HR handles.)

Good luck and happy coding!

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By kevinsogo, history, 10 months ago, In English,

Hello Codeforces Community!

I invite you all to join HackerRank's HourRank 28 on June 3, 2018, at 20:30 IST.

You will be given one hour to solve three tasks. The contest will be rated and the top ten contestants will receive HackerRank T-shirts!

The problems are created by mr.logix, abx_2109, and coderdecode and tested by me.

Good luck and happy coding!

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By kevinsogo, history, 10 months ago, In English,

Hello Codeforces Community,

I invite you all to join HackerRank's World Codesprint 13 starting on 26 May 2018. The contest duration is 48 hours.

The winners of the contest will win up to 1000USD cash prizes. Also, there are opportunities to win some nice T-shirts.

The contest will be rated. If two persons get the same score, the person who reached the score first will be ranked higher. There will be 7 algorithmic challenges in the contest.

The problems are prepared by immuntasir, sreka11, pkacprzak, virus_1010, qoo2p5, saluja123, BishalG, Manashi, Baba, adamant, and myself.

Good luck, and I hope you enjoy the problems!

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By kevinsogo, history, 12 months ago, In English,

Hello Codeforces Community!

I invite you all to join HackerRank's HourRank 27 on April 2, 2018, at 20:30 IST.

You will be given one hour to solve three tasks. The contest will be rated and the top ten contestants will receive HackerRank T-shirts!

The problems are prepared by guptautkarsh028, svanidz1, pkacprzak, wanbo and myself (kevinsogo). I suggest you read all of them. I hope you'll like them!

Good luck and happy coding! Also, happy April Fools' Day! (This announcement is not an April Fools joke.)

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By kevinsogo, history, 13 months ago, In English,

Hello Codeforces Community,

I am glad to share HackerRank's University Codesprint 4 starting on 23rd February 2018. The contest duration is 48 hours.

The winners of the contest will win up to 1000USD cash prizes. The top 100 will also win awesome hoodies. (The winners will be required to give proof that they are currently enrolled in the university they represented during University CodeSprint.)

The contest will be rated. If two person gets the same score, the person who reached the score first will be ranked higher. There will be a separate ranklists for schools.

There will be 7 algorithmic challenges in this contest.

The problems were prepared by Alladdin, prateekg, niyaznigmatul, BishalG, anuj95, wanbo, svanidz1, kevinsogo, xennygrimmato, geek_geek, Wild_Hamster, shashank21j.

Good luck and Happy Coding!

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By kevinsogo, history, 14 months ago, In English,

Hello Codeforces Community!

I invite you all to join HackerRank's HourRank 26 on February 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 different setters and testers: VastoLorde95, Harun, shashank21j, pkacprzak, ikbal and kevinsogo. I suggest you read all of them. I hope you'll like them!

Good luck and happy coding!

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By kevinsogo, history, 15 months ago, In English,

Hello Codeforces Community,

I invite you all to join HackerRank's World Codesprint 12 starting on 14 December 2017. The contest duration is 48 hours.

The winners of the contest will win up to 1000USD cash prizes. Also, there are opportunities to win some nice hoodies.

The contest will be rated. If two persons get the same score, the person who reached the score first will be ranked higher. There will be 7 algorithmic challenges in the contest.

The problems are prepared by sreka11, krismaz, Shaikhidoshik, forthright48, muratekici, shashank21j, pkacprzak, Xsquare, extraVirgin20, Golovanov399, niyaznigmatul and myself.

Good luck, and I hope you enjoy the problems!

P.S. I hope I got all the CF handles right.

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By kevinsogo, history, 17 months ago, In English,

Hello Codeforces Community!

I invite you all to join HackerRank's HourRank 24 on November 2, 2017, at 20:30 IST.

There will be four 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 anveshi and tested by Stomach_ache, qoo2p5 and me. There are four problems this time instead of three. I suggest you read all of them. I hope you'll like them!

Good luck and Happy Coding!

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By kevinsogo, history, 18 months ago, In English,

Hello, Codeforces Community!

I invite you all to join HackerRank's University CodeSprint 3 starting on 29th September 2017. The contest duration is 48 hours.

The winners of the contest will win up to 1000USD cash prizes. The top 100 will also win awesome hoodies. (Winners will be required to give proof that they are currently enrolled in the university they represented during the University CodeSprint.)

The contest will be rated. If two people get the same score, the person who reached the score first will be ranked higher. There will be a separate rank list for schools.

There will be 7 algorithmic challenges in this contest. Some of them will have subtasks, so I highly recommend you to read all of them.

The problems were created by immuntasir, sreka11, svanidz1, sgtlaugh and Hillan and tested by Shafaet, pkacprzak, wanbo, Wild_Hamster and me. Big thanks to Wild_Hamster for helping to review and test most of the problems.

Good luck and happy coding!

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By kevinsogo, history, 19 months ago, In English,

Hello Codeforces Community!

I invite you all to join HackerRank's HourRank 23 on September 9, 2017, 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 Wild_Hamster, zoomswk and me, and tested by shashank21j, Birjik and me. I hope you'll like them!

This round is a bit harder than the usual for HourRank. I suggest you read all the problems.

Good luck and Happy Coding!

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By kevinsogo, 19 months ago, In English,

Hello Codeforces community,

I would like to invite you to join HackerRank's 101 Hack 51 which starts at 1500 UTC, August 7, 2017.

There will be five tasks and three hours 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 Yury Shilyaev (hloya_ygrt) and Vlad Vishnevsky (Vladik). (HackerRank only displays one author per problem, but the whole set was actually prepared by both.) I tested the problems and I found them to be interesting. I hope you'll enjoy the problems as much as I did!

Happy Coding!

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By kevinsogo, history, 21 month(s) ago, In English,

Hello Codeforces community,

I would like to invite you to join HackerRank's 101 Hack 50 on June 20, 2017.

There will be five tasks and three hours 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 kevinsogo, nabila_ahmed, zemen, Fedoriaka, and krismaz and tested by shashank21j, allllekssssa, bayleef, wanbo, and kevinsogo. I hope you'll enjoy the problems prepared by the community!

Happy Coding!

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By kevinsogo, history, 2 years ago, In English,

Hello CodeForces Community!

I would like to invite you all to the mirror contest of ACM-ICPC Asia — Kolkata Onsite Mirror Contest ACM-ICPC Asia — Kolkata Onsite Mirror Contest. For those who are prepping for the ICPC onsite regionals this would be a perfect platform to practice as it would simulate the real onsite contest.

Contest Details

Time: 27th December 2016 (1100 hrs) to 27th December 2016 (1600 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Contest link: https://www.codechef.com/KOL16MOS

Registration: You just need to register as a Team on CodeChef. Those who are interested and do not have a CodeChef handle are requested to register in order to participate.

Good Luck! Hope to see you participating!!

Note: The mirror contest will run in parallel to the main contest with an hour delay.

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By kevinsogo, history, 2 years ago, In English,

Hello CodeForces Community!

Being your Secret Santa this Christmas, I have packed a nice little gift for you. I am happy to invite you to the ACM-ICPC Asia — Kharagpur Onsite Mirror Contest ACM-ICPC Asia — Kharagpur Onsite Mirror Contest. Please do come and open your little gift on 17th December 1000 hours IST.

Joining me on the problem setting panel are:

Problem Testers: Errichto(Kamil Debowski), kingofnumbers(Hasan Jaddouh), kevinsogo(Kevin Charles Atienza)
Problem Setters: PraveenDhinwa(Praveen Dhinwa), Balajiganapathi(Balajiganapathi Senthilnathan), rekt_n00b(Animesh Fatehpuria), arjunarul(Arjun Arul), adurysk(Surya Kiran), kevinsogo(Kevin Charles Atienza).

I hope you will enjoy solving them. Please give your feedback on the problem set in the comments below after the contest. You can find the rest of the details about the contest below.

Time: 17th December 2016 (1000 hrs) to 17th December 2016 (1500 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Details: https://www.codechef.com/KGP16MOS

Registration: You just need to register as a Team on CodeChef. Those who are interested and do not have a CodeChef handle are requested to register in order to participate.

Good Luck! Hope to see you participating!

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By kevinsogo, history, 3 years ago, In English,

Hello CodeForces Community!

We are a few hours away from the SnackDown 2016 Finale. The atmosphere here at the Onsite Finale is amazing. All the teams here seem excited for the final contest.

In parallel to the Onsite Finale there will be a mirror contest of the onsite finale and I’d like to invite you to participate in it. The SnackDown Onsite Finale Mirror Contest will begin at 12:00 PM, 9 th July.

For the finals, the problems have been set and tested by kingofnumbers (Hassan Jaddouh), me (kevinsogo), Cherrytree (Sergey Kulik), utkarshl (Utkarsh Lath) and Antoniuk (Vasya Antoniuk), the translations were written by huzecong (Hu Zecong) for Mandarin, Antoniuk (Vasya Antoniuk) along with Cherrytree (Sergey Kulik) for Russian and VNOI Team for Vietnamese. The contest admin and language verifier is PraveenDhinwa (Praveen Dhinwa).

Registrations:

  • You can register in a team of two or can go solo into the contest. The Onsite Finale Mirror Contest starts at 12:00 PM 9 th July.

  • If you are yet to register, you can do so here: https://www.codechef.com/teams/register/SNFL16MR.

  • The contest format requires you to participate in a team of 2 or you can go solo. The prizes for the winners of the contest will be 5000 INR for the one who secures the first position and 3000 INR for the runner up.

See you all at the contest.

Regards,

Kevin Charles Atienza

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By kevinsogo, history, 3 years ago, In English,

Hello CodeForces Community!

Congratulations to all those who have cleared the SnackDown 2016 Qualifiers. We hope you are prepared for the Pre-Elimination Rounds. There will be two pre-elimination rounds and 1000+ teams ( to be precise, the top 1000 teams and teams with number of problems solved equal to 1000th team ) will be selected from each of the 2 rounds, Pre-Elimination Round A and Pre-Elimination Round B, who will further advance to the SnackDown 2016 Elimination.

The CodeChef SnackDown 2016 Pre-Elimination Round A begins tomorrow, at 9 PM IST, 4th June.

The problems have been set and tested by Cherrytree (Sergey Kulik), Antoniuk (Vasya Antoniuk), and me (kevinsogo, Kevin Charles Atienza). The translations are written by huzecong (Hu Zecong), Antoniuk (Vasya Antoniuk), VNOI Team, Cherrytree (Sergey Kulik), with PraveenDhinwa (Praveen Dhinwa) as contest admin. I hope you will enjoy solving the problems. Please feel free to give your feedback about the problems in comments below.

  • Furthermore, this year, CodeChef will be inviting 52 teams (top 25 global + top 25 Indian + all Girl team + Indian school team) for the onsite finals. Of these 52 teams, 32 teams (top 15 each Global & Indian + Girl + Indian school team) will get an all-expense-paid trip to India, while the remaining 20 teams will be provided with accommodation and local travel in India. However, if any of these 20 teams win the competition, their travel fare will be reimbursed as well. It’s a win-win situation.

Along with the cash prizes for Global Winners, there are special prizes for Best School Team, Best Girls team and Best Indian Team (the total cash prizes are worth $22,500).

  • The winning team shall win a whopping cash prize of $10,000.
  • Also, taking into consideration the previous discussions regarding the timing of online elimination round of the contest, the organizers have decided to reschedule the round.

The new timings for the SnackDown 2016 Elimination Round are:

In order to accommodate the new timings, they have also rescheduled the June Cook-Off 2016. And the new timings for the June Cook-Off are:

Date & Time: 26th June 2016, 21:30 Hrs IST to 00:00 Hrs IST

I hope you like the new timings and that will enjoy the contest till the very end. That will be all from my side for now. See you all at the contest.

Regards,

Kevin

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By kevinsogo, history, 3 years ago, In English,

Hi all. I want to invite you to HourRank 9. The contest will take place tomorrow (exact time) on HackerRank. There are three problems to be solved in one hour.

For this round I wrote the problems. I hope you find them interesting! wanbo tested them, and other contributors (pre-solving, suggestions, technical help, etc.) are malcolm, satyaki3794, and Shafaet. Thank you for all your help!

The top 10 will get awesome HackerRank t-shirts. Editorials will be available at the end. Good luck and have fun!

Update: Score distribution : 30-50-80

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By kevinsogo, history, 3 years ago, In English,

Hi Coders!

Ad Infinitum is back with its 15th Edition, a contest restricted to the mathematics domain, held on HackerRank.

Register at https://www.hackerrank.com/infinitum15
The contest commences on 15th April 15:30 UTC. You are allowed to enter the contest anytime. For tie breaking, the timer will start when you view the first challenge, which allows you to start late at your own convenience, but once started try to finish as fast as possible to be on top of the leaderboard :)

It's a 2-day contest with 8 problems (3 Easy(Tutorial), 3 Medium, 2 Hard)
Scoring Distribution: 20 25 30 40 60 80 90 100

Top 10 on leaderboard gets Cool HackerRank T shirts,

Detailed editorials will be available by the end of contest :) I suggest you try all challenges, and at the end of contest understand the solutions.

GL&HF

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