kostka's blog

By kostka, 5 months ago, In English,

Hey everyone,

I know that nearly everyone is looking towards China right now, but let's try (like in a previous year) to create a list of IOI 2018 participants.

The list can be found here: http://weaselcrow.com/pro/cf/ioi/18/

How to add or update data? Please fill the following form: https://goo.gl/forms/he4DlrzfKWw35lx73

 
 
 
 
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5 months ago, # |
  Vote: I like it +11 Vote: I do not like it

Wow, I didn't know RockyB is IOI 2018 participant, lol

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5 months ago, # |
Rev. 4   Vote: I like it +91 Vote: I do not like it

Romania’s IOI team:

Oncescu Costin-Andrei geniucos

Tatomir Alex atatomir

Constantin-Buliga Stefan fanache99

Musat Tiberiu Tiberiu

I’ll upload the team via the system as well but figured that it’s better to post it here so that the blog will appear in the recent actions section and people would remember of the existence of this blog. I advise the other guys to do the same

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    5 months ago, # ^ |
      Vote: I like it +57 Vote: I do not like it

    And this way is much more fun to see, too

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5 months ago, # |
  Vote: I like it -82 Vote: I do not like it

I hope that there won't be a ton of predictions of another Chinese guy getting the champion as it was last year.

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    4 months ago, # ^ |
      Vote: I like it +95 Vote: I do not like it

    Put some sugar on it, too salty.

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      4 months ago, # ^ |
        Vote: I like it -48 Vote: I do not like it

      It's funny how criticizing any comment that has lots of downvotes will always give people free upvotes.

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        4 months ago, # ^ |
        Rev. 2   Vote: I like it +107 Vote: I do not like it

        It's funny how a person like you posts these stupid and useless comments.

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          4 months ago, # ^ |
            Vote: I like it -87 Vote: I do not like it

          Please explain how your post is less "stupid" and "useless" than mine. And how your comment itself doesn't fall into the category of the type I described above.

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            4 months ago, # ^ |
              Vote: I like it +113 Vote: I do not like it

            Simple explanation: his comment states an evident fact, your comment is a childish cry for attention over a failure for 32809238049329-th time.

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              4 months ago, # ^ |
                Vote: I like it -84 Vote: I do not like it

              Just think about how little intellect you need to comment something like that and how you just typed a random number like a monkey and yet ironically and much to the point of my comment, it still gets so many upvotes.

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                4 months ago, # ^ |
                  Vote: I like it +76 Vote: I do not like it

                Wait, what was the point of your comment? Criticizing downvoted comments gives you upvotes? In other words, if people disagree with something, then they are likely to agree with the opposite. Seems like an adequate point to make.

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                4 months ago, # ^ |
                  Vote: I like it +167 Vote: I do not like it

                The reason you get downvoted and those making fun of you get upvoted is that many people are tired of you complaining whenever you fail a competition (even a year later, apparently). You also seem to lack a sense of humour. Stop over-dramatizing everything and move on, for everyone's sake.

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                  4 months ago, # ^ |
                    Vote: I like it -71 Vote: I do not like it

                  I sort of agree on the complaining part. I indeed complained too much on Codeforces(I mean I wasn't wrong to complain, but this is not a good place to do it). And I would stop complaining(and probably I already did to some extent, you judge) in the future. However, I didn't and at least I didn't mean to complain in my original comment. I don't think that's the reason why I get downvotes. Is it that I shouldn't have written the comment so that it would sound humorous and that everybody would know I was just making a joke?

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                  4 months ago, # ^ |
                    Vote: I like it +40 Vote: I do not like it

                  Even if so, I don't think it's reason to offend the another guy. It's unpleasantly and disgustingly for me to read this branch, honestly saying.

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                  4 months ago, # ^ |
                    Vote: I like it 0 Vote: I do not like it

                  I would stop complaining(and probably I already did to some extent, you judge)

                  What do you call your main comment!!!

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                  4 months ago, # ^ |
                    Vote: I like it +23 Vote: I do not like it

                  Do you really think that's complaining?

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                  4 months ago, # ^ |
                    Vote: I like it +19 Vote: I do not like it

                  Yes!!

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                  4 months ago, # ^ |
                    Vote: I like it +9 Vote: I do not like it

                  Well that's what you think

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                  4 months ago, # ^ |
                  Rev. 2   Vote: I like it 0 Vote: I do not like it

                  But you are trying to make yourself look better than other IOI 2017 contestant.

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                  4 months ago, # ^ |
                    Vote: I like it +86 Vote: I do not like it

                  I feel people should stop being rude with matthew99 — it's not funny to see him being downvoted for some negative things he may sometimes say, while everyone else gets +100 on posts which do no more than bully him.

                  This is not how a strong community is meant to work.

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                  4 months ago, # ^ |
                    Vote: I like it +51 Vote: I do not like it

                  And where were you when I got bullied

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                  4 months ago, # ^ |
                    Vote: I like it 0 Vote: I do not like it

                  He is giving his views which is unpopular, and therefore is downvoted. While you on the other hand, were offending and bullying everyone, not the other way round. At least recently it seems like you have changed, so thank you for that.

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                  4 months ago, # ^ |
                    Vote: I like it +10 Vote: I do not like it

                  So true.

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        4 months ago, # ^ |
          Vote: I like it +53 Vote: I do not like it

        This concept is called roasting, the best thing you can do is to relax and laugh at your stupidity

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          4 months ago, # ^ |
            Vote: I like it -61 Vote: I do not like it

          You just described your own comment.

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            4 months ago, # ^ |
              Vote: I like it +59 Vote: I do not like it

            Downvotes are there to remind us we're doing something wrong not to do it over and over again.

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              4 months ago, # ^ |
                Vote: I like it -37 Vote: I do not like it

              I'm sorry, but I wrote that comment to remind some people that they aren't doing something they should be proud of instead of asking them to do it over and over again.

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        4 months ago, # ^ |
          Vote: I like it +104 Vote: I do not like it

        Nice I wanna try it, guys up-vote me please to prove it :D

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    4 months ago, # ^ |
      Vote: I like it +51 Vote: I do not like it

    You can't really stop anyone from making any predictions for the IOI (or other contests) so the best way to not feel pressured because of it is to just ignore these predictions yourself.

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    4 months ago, # ^ |
      Vote: I like it +136 Vote: I do not like it

    I predict China team will win with 4 gold medals !!!!! =3=

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    4 months ago, # ^ |
      Vote: I like it -27 Vote: I do not like it

    You should be busy studying at MIT instead of arguing here :))

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5 months ago, # |
  Vote: I like it +12 Vote: I do not like it

I don't know how/if it's possible to edit this, but attempts left for Slovaks should be: Jozef Fülöp 2, Ondrej Baranovič 1.

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    5 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    You can fill the form again, but I already added this. Thanks!

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5 months ago, # |
  Vote: I like it +22 Vote: I do not like it

Egypt's IOI team:

Mahmoud Badawy: mahmoudbadawy

Mohamed Ehab: mohammedehab2002

Mohamed Otify: Darksinian

Mahmoud Adel: Mahmoud..Adel

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4 months ago, # |
Rev. 3   Vote: I like it +1 Vote: I do not like it

For India, the information is wrong. rajarshi_basu is not in the team. The final team is

Adhyyan R Sekhsaria Adhyyan1252

Choudhury Istasis Mishra MagicPotato

Mohammad Zaid sir.zaid

Ramchandra Kishor Apte ramchandra

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4 months ago, # |
Rev. 2   Vote: I like it +51 Vote: I do not like it
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4 months ago, # |
  Vote: I like it -26 Vote: I do not like it

Bangladesh team is not decided yet. But I am sure that Rezwan.Arefin01 will surely make the team. He will make us proud in the IOI.

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4 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Did something happen? Ratings and colours aren't available anymore.

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4 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Delete my registration with 2 attempts.

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4 months ago, # |
Rev. 2   Vote: I like it +21 Vote: I do not like it

Vietnam's IOI team (according to unofficial APIO result):

Nhat Hoang Xuan (FallingStar1709)

Minh Nguyen Hoang Hai (mink_ank_loves_me)

Khanh Nguyen (Definitely_Not_Ngkan146)

Thang Pham Duc (AomeII)

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4 months ago, # |
Rev. 3   Vote: I like it +30 Vote: I do not like it
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4 months ago, # |
  Vote: I like it +17 Vote: I do not like it

Syria's team:

repeating Fadi Younes, 2nd participation, no medal

XmtosX Ahmad Haidar, 1st participation

tamtam Tamer Emad, 1st participation

dwikov Moahmmad Dwik, 4th participation, no medal

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4 months ago, # |
  Vote: I like it +60 Vote: I do not like it

Malaysia's IOI team:

Yeoh Zi Song zscoder

Tan Wei Xin duckmoon99

Tan Jia Qing hh-2013080

Lee Jia Jun jiajunlee

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    4 months ago, # ^ |
      Vote: I like it +11 Vote: I do not like it

    How many attempt does zscoder have left?

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      4 months ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      at most 4 attempts as he is 16 in July(but 17 this year). But as Malaysian usually go to university at 19, he will probably only attempt 3 more times.

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4 months ago, # |
Rev. 2   Vote: I like it +4 Vote: I do not like it

Our country hasn't yet choosed the participants of IOI 2018, but my name is in the list. I don't know who added me and there is no option to remove data. So can you please help me?

UPD: I see I am no longer in the list. Thanks a lot)

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4 months ago, # |
  Vote: I like it +28 Vote: I do not like it

Canadian IOI Team 2018:

Joey Yu (kobortor, grade 12, 0 tries left, 1 participation in 2017 with no medal)

Peter Zhou (duality, grade 8, 4 tries left, no previous IOI) //This is not a typo, he is really grade 8!

Victor Rong (r3mark, grade 11, 1 try left, no previous IOI)

Ava Pun (AvaLovelace, grade 11, 1 try left, no previous IOI)

Some of my sidenotes about the team below:

This year the Canadian IOI Qualifier (Canadian Computing Olympiad, aka CCO) had quite an upset. A person who won gold at IOI last year failed to qualify this year, while I got 1st place no medal at IOI last year and came out ahead of him.

In addition, 3/4 of the Canadian team doesn't really use codeforces, but they are all active on the main Canadian Competitive Programming site "Don Mills Online Judge (DMOJ)", which I'm sure many of you are familiar with.

Lastly, if you guys are curious about the scores at CCO, I have posted the unofficial results of the CCO on my website over at kobortor.com. (Excuse the shoddy website "design", this was put together in a hurry)

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    4 months ago, # ^ |
      Vote: I like it +22 Vote: I do not like it
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      4 months ago, # ^ |
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      Unbelievable!

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      4 months ago, # ^ |
        Vote: I like it +23 Vote: I do not like it

      On the bright side, this means that Canada will get 4 gold this year, since they're all better than me ;). Everyone has their bad days. (and bad nights, 2h sleep before the contest).

      Outline of tasks:

      d1p1: trivial dp task

      d1p2: Basically "hacking" on cf. Output only, write a case so that the given code fails.

      Draw a graph by hand and copy it into your program.

      d1p3: There are n+1 rooms in a row. You can travel between room i and i+1 if there are ai people in room i or bi people in room i+1, not including the person travelling. How many people can you place in all the rooms such that room 0 is unreachable?

      A really nice problem in hindsight. Easy to miss a case on the dp.

      d2p1: binary search task with minor optimization for last subtask

      d2p2: You are given A. At each operation, Ai is changed to a new value x. After each operation, find the maximum sum of two elements in A whose indices are no more than k apart, where k is a constant given at the beginning of input.

      Clean data structures if you took more than 10 minutes to think about it, horrible data structures if you didn't. Hint: online is not enforced.

      d2p3: Given an array A and B, transform A into B using the following operation: Take an interval [l, r] and swap the maximum and minimum elements in the interval.

      very nice solution in theory. It's only nice in theory.

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    4 months ago, # ^ |
      Vote: I like it +8 Vote: I do not like it

    Where can I find the problem statements?

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      4 months ago, # ^ |
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      And is there a possibility to do a virtual competition?

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        4 months ago, # ^ |
          Vote: I like it +5 Vote: I do not like it

        I don’t think there is a way to do so, but I have posted the problem statements in response to the other person’s comment.

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        4 months ago, # ^ |
          Vote: I like it +21 Vote: I do not like it

        Mirrors are now up on DMOJ.
        Day 1
        Day 2

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          4 months ago, # ^ |
            Vote: I like it 0 Vote: I do not like it

          Thank you

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          4 months ago, # ^ |
          Rev. 3   Vote: I like it 0 Vote: I do not like it

          I have a question about DMOJ. How is it possible that 109 pretty simple operations exceeded 8 seconds time limit (Complexity O(n * q) where n ≤ 104 and q ≤ 105). I am almost certain that this should fit in this time limit.

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            4 months ago, # ^ |
              Vote: I like it +5 Vote: I do not like it

            Some contestants tried submitting such an approach during the official contest and it still TLEd on the official site, with significantly faster judges than DMOJ (at least twice as fast).

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      4 months ago, # ^ |
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    4 months ago, # ^ |
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    The Indian IOI selection was also quite an upset. A person who went to IOI last year didn't make it to the team. A person who was expected gold or atleast a silver (not kidding) also didn't make it to the team. I came 5th. Also problems were pretty different from normal problems that come in IOI or even in previous TSTs. Most problems only had 1 subtask.

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4 months ago, # |
Rev. 4   Vote: I like it +6 Vote: I do not like it

Tajikistan’s IOI-team:

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  Vote: I like it +21 Vote: I do not like it

Team Finland:

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4 months ago, # |
  Vote: I like it +28 Vote: I do not like it

Georgian team:

Giorgi Kldiashvili octopuses (4th participation, 2017,2016- silver; 2015- bronze)

Nikoloz Birkadze nikabb (2nd participation, 2017- silver)

Aleksandre Khokhiashvili khokho (2nd participation, 2017- no medal)

Vano Gamezardashvili vanogam (1st participation)

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4 months ago, # |
  Vote: I like it +54 Vote: I do not like it

Japanese IOI Team

Rank 1st, 5th 2nd, 6th 3rd, 7th 4th, 8th
Japan 1 Team WA_TLE Kmcode 193s Hoget157
Japan 2 Team E869120 square1001 Pulmn hirakich1048576

IOI 2018 will be held in Tsukuba, Japan. Since this, Japan can send 2 teams to IOI 2018, one is official and another one is unofficial.
Spring camp of Japanese Olympiad in Informatics(JOI) held from March 19th to Marth 25th. Japanese IOI teams determined based on the results of spring camp.

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    4 months ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Congrats on making it! Will the problem statements of the JOI problems (in English) be available online?

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      4 months ago, # ^ |
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      They are already available in oj.uz (Spring Camp / Final Round)

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    4 months ago, # ^ |
      Vote: I like it +6 Vote: I do not like it

    I'll add some information of past IOI results and how many attempts left.
    - All 8 participants from Japan is, surprisingly, first participation of IOI.
    - All Japan 1 participants except Kmcode (which is 1 tries left) is the last chance of IOI. But in contrast, all Japan 2 participants except Pulmn (which is the last chance) is 2 more tries left.

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4 months ago, # |
  Vote: I like it +90 Vote: I do not like it

Team Korea:

Coach : ko_osaga leecs0503

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  Vote: I like it +148 Vote: I do not like it

Russian team:

  1. Vladimir Romanov voidmax 1 try left
  2. Mikhail Anoprenko manoprenko 0 tries left
  3. Ramazan Rakhmatullin grumpy_gordon 0 tries left
  4. Egor Lifar egor.lifar 3 tries left
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  Vote: I like it +35 Vote: I do not like it

Team Bangladesh:

  1. Tasmeem Bruteforceman Reza (2016, 2017 bronze, 2 attempts left)

  2. Ruhan ruhan.habib39 Habib (2016 bronze, 2017 bronze, 1 attempt left)

  3. Rezwan Rezwan.Arefin01 Arefin (first participation, 2 attempts left)

  4. Mamnoon Mamnoon_Siam Siam (first participation, 3 attempts left)

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4 months ago, # |
  Vote: I like it +7 Vote: I do not like it

Team Mexico

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  Vote: I like it +17 Vote: I do not like it

The Dutch IOI team:

Arend FLDutchman Mellendijk

Robert Po6ept Koprinkov

Ernest ernestvw van Wijland

Reijer Raynius van Harten

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4 months ago, # |
Rev. 2   Vote: I like it +27 Vote: I do not like it

Indonesian IOI team:

  1. Abdul Malik Nurrokhman — AMnu
  2. Steven Wijayastevenwjy
  3. Ahmad Haulian Yoga Pratama — yogahmad27
  4. Muhammad Salman Al-Farisi — AlphaRazra

While AMnu can also still participate in IOI 2019, IOI 2018 is the final IOI chance for the rest of the team.

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4 months ago, # |
  Vote: I like it +8 Vote: I do not like it

CommonAnts almost won in CTSC2018.Sorry about that.

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4 months ago, # |
  Vote: I like it +67 Vote: I do not like it
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4 months ago, # |
  Vote: I like it -10 Vote: I do not like it

USA Team is being announced right now:

  1. Benq
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Rev. 3   Vote: I like it 0 Vote: I do not like it
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  Vote: I like it +1 Vote: I do not like it
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  Vote: I like it +6 Vote: I do not like it
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4 months ago, # |
Rev. 2   Vote: I like it +25 Vote: I do not like it

Serbian's IOI team:

  1. Tadija Šebez TadijaSebez
  2. Aleksa Milisavljević milisav
  3. Pavle Martinović Pajaraja
  4. Aleksa Milojević
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4 months ago, # |
  Vote: I like it +12 Vote: I do not like it

The Philippine team:

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3 months ago, # |
Rev. 3   Vote: I like it +57 Vote: I do not like it

Bulgaria team:

Viktor Terziev — 0 attempts left (Viktor_Terziev)

Radoslav Dimitrov — 1 attempt left (radoslav11)

Martin Kopchev — 4 attempts left (Martin53)

Aleksandar Krastev — 1 attempt left (perchema)

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3 months ago, # |
Rev. 2   Vote: I like it +26 Vote: I do not like it

Uzbekistan's IOI team:

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3 months ago, # |
  Vote: I like it +18 Vote: I do not like it

Israel's Team:

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3 months ago, # |
  Vote: I like it +43 Vote: I do not like it

Announcing Team Australia:

  • Jerry Mao, jerry Year 12, final attempt, 2017G 2016S 2015B
  • Angus Ritossa, AngusRitossa Year 11, 1 more attempt, 2017
  • Albert Smith, 1021839 Year 12, final attempt
  • Jacob Smith, [not on cf] Year 12, final attempt
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3 months ago, # |
  Vote: I like it -27 Vote: I do not like it

Ukraine team:

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3 months ago, # |
  Vote: I like it +25 Vote: I do not like it

Jordanian IOI Team :

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  Vote: I like it +14 Vote: I do not like it

Dominican Republic Team:

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  Vote: I like it +59 Vote: I do not like it

Belarus IOI team:

  • Alexander Kernozhitsky gepardo (0 attempts left, silver at IOI 2017)

  • Andrey Nekrashevich xolm (0 attempts left)

  • Mark Kornejchik markysha (0 attempts left)

  • Stanislav Titenok austrian_artist (0 attemps left)

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Rev. 2   Vote: I like it +7 Vote: I do not like it

Bosnia and Herzegovina team:

Muamer Paric Miminyte500

Drago Šmitran Kubalionzzale

Stevo Mitrić stEvo

Vladan Cvjetković cvele

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3 months ago, # |
  Vote: I like it +50 Vote: I do not like it

Belgian IOI team:

  • Bruno Ploumhans: BrunoPloumhans (final attempt, 2017B, 2016)
  • Oscar Jocqué: groeneprof (2 attempts left, 2017)
  • Arthur Massar: arthurmassar (final attempt, 2017B)
  • Sebastian Weiermann: streifi (1 attempt left, 2017)

Let's hope Belgium will be as impressive at IOI as they are at the FIFA World Cup. :)

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2 months ago, # |
Rev. 2   Vote: I like it +14 Vote: I do not like it

Tunisia's IOI team:

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Rev. 2   Vote: I like it +13 Vote: I do not like it
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Rev. 2   Vote: I like it +4 Vote: I do not like it

Armenian IOI team:

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2 months ago, # |
  Vote: I like it 0 Vote: I do not like it

Macedonian IOI Team:

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Rev. 2   Vote: I like it +29 Vote: I do not like it

All IOI teams:

http://stats.ioinformatics.org/delegations/2018

Codeforces handles coming up at a later point.

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    2 months ago, # ^ |
    Rev. 2   Vote: I like it +3 Vote: I do not like it

    Awesome! I've updated my list as well.

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      2 months ago, # ^ |
        Vote: I like it +3 Vote: I do not like it

      Japan second team got added, since it isn't present at the moment in the registration system. This data is still originating from official sources. Thanks to square1001 for pointing this situation out to me.

      Also note, that the data may still have small changes -- I'll keep monitoring registration system at a slower pace and pulling any updates necessary.