arsijo's blog

Ukrainian Olympiad in Informatics 2023 — Mirror
By arsijo, 19 months ago, In English

On April 11 and 12 the Ukrainian Olympiad in Informatics 2023 took place. Because of the war, the Olympiad took place in the regional centers of Ukraine and in Warsaw.

The problems were created by RomaWhite, BigBag, Barichek, antontrygubO_o, I_LOVE_ANTON_DONBASS, Denisov, VladProg, Grogu, TheScrasse, bortoz, Kaey, andr1y

The mirror will take place on April 15 and 16. It will start at 11 AM Kyiv time. You can choose any 5-hour window to participate. The problems will be available in Ukrainian and English. Everyone is welcome to participate (except for the participants from the terrorist state).

The link to the first round: uoi2023-1.eolymp.io

The link to the second round: uoi2023-2.eolymp.io

The results of the mirror contest are available here. The original results are available here.

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  • Vote: I do not like it

Comments Comments (84)
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19 months ago, # |
  Vote: I like it -339 Vote: I do not like it

Сodeforces should be banned for Ukrainians just like e-olymp is banned for Russians

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    19 months ago, # ^ |
      Vote: I like it +189 Vote: I do not like it

    It was Russia which invaded Ukraine, wasn't it?

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      19 months ago, # ^ |
      ← Rev. 3   Vote: I like it +102 Vote: I do not like it

      .

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        19 months ago, # ^ |
          Vote: I like it -50 Vote: I do not like it

        First of all it isn't place to discuss politics, people should not hate each other just because of different views, everyone can be mistaken and be exposed to propaganda

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          19 months ago, # ^ |
            Vote: I like it +42 Vote: I do not like it

          Different views as rockets flying into your house?

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      18 months ago, # ^ |
      ← Rev. 5   Vote: I like it -11 Vote: I do not like it

      Educative platforms are not the one to decide who is wrong or who is right. They should be free for everyone.

      Most of us don't know much about world politics and politics should not affect educative platforms as well. I don't like e-olymp decision to ban Russians.

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    19 months ago, # ^ |
    ← Rev. 2   Vote: I like it -51 Vote: I do not like it

    Дружок-пирожок, не надо тут начинать апартеид

    Любые ограничения по цвету штанов должны были остаться в прошлом веке

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

    Use VPN maybe

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19 months ago, # |
← Rev. 2   Vote: I like it -397 Vote: I do not like it

Ban Ukraine at IOI

UPD: Why there are so low dislikes? Work harder guys, more dislikes, more!

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19 months ago, # |
  Vote: I like it +33 Vote: I do not like it

Codeforces is not a place for users' expressing political views. Please stop accusing each other.

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    19 months ago, # ^ |
      Vote: I like it +187 Vote: I do not like it

    Um, like every time somebody creates a list of WF teams and puts Taiwan in the "Country" column, there are dozens of comments from Chinese accounts that say that Taiwan is an inseparable part of China? Are you talking to them now?

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

      They shouldn't either

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      19 months ago, # ^ |
      ← Rev. 5   Vote: I like it -25 Vote: I do not like it

      It's my first time support user: Abito ]

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      19 months ago, # ^ |
        Vote: I like it -86 Vote: I do not like it

      tbh , no one in asia is supporting ukraine.

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        19 months ago, # ^ |
        ← Rev. 2   Vote: I like it +64 Vote: I do not like it

        .

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

          russian who changed Australia to Antarctica in profile? only Zelenskyy can stop this war

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            19 months ago, # ^ |
            ← Rev. 3   Vote: I like it +19 Vote: I do not like it

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              19 months ago, # ^ |
                Vote: I like it -53 Vote: I do not like it

              You aren't supporting your own country, won't you be classified as a traitor. Russia would win iff their citizens are supporting their country.

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                19 months ago, # ^ |
                ← Rev. 5   Vote: I like it +51 Vote: I do not like it

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                19 months ago, # ^ |
                  Vote: I like it +91 Vote: I do not like it

                I will choose being a traitor to the corrupt government of the country I was born in by chance over committing horrible crimes against humanity any day.

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

            Are you joking? Like Zelenskyy should let Russians come to Ukraine and take it?

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

              If it ends the bloodshed, why not?

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

                It won't end the bloodshed on occupied territories because the main purpose of ruzzians is to destroy Ukrainian identity and culture, as they did to numerous nations they occupied in the past. All people who disagree with it will either have to leave their cities and everything they have or get murdered. Is it fair enough for you?

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                  18 months ago, # ^ |
                    Vote: I like it -36 Vote: I do not like it

                  So europeans occupied Americas and Africa in the past, britains occupied India, russians occupied smth (?? I supposed russia didn't have colonies). I'm so tangled. But every country carry out its own policy. USA, India, Ukraine, Russia.. policy that collide sometimes with other's. E.g. we hate pakistan, but love russia, you may hate russia, but love pakistan. You are just a small country in the globe, keep it simple

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

                  So what's your point, should we give our territories to russia and forget about all Ukrainians from there? Who will guarantee that russia won't invade again?

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

Please let people from Russia use eolymp.

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19 months ago, # |
  Vote: I like it +259 Vote: I do not like it

I understand, say, not inviting Putin to participate in a coding competition, but what did 15-16yo Russian kids do to you?

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

    I understand, say, fighting with armed soldiers, but what did 15-16yo Ukrainian kids do to russian army?

    Throwing away parallels and returning back to your question: it's not about kids — it's more like a signal for a whole country that something, khm-khm, lets say, is off. I believe there are many decent people among Russian athletes and chess players who condemn war, but if they will be allowed to participate in international events under russian flag — it will be much easier for putin's propaganda to show to the average russians that everything is fine and they shouldn't worry much about the war.

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      19 months ago, # ^ |
        Vote: I like it +45 Vote: I do not like it

      yeah, better to sow the idea in the young generation that we are not friends

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

        Oh, so apart from that they have all the reasons to think that we are? Is that what your media tells to people? I doubt so.

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19 months ago, # |
  Vote: I like it +122 Vote: I do not like it

You could have just announced your contest, but no you had to be a dick.

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

Imagine being on russian cp website with nickname urging to impose sanctions to russian cp community

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    19 months ago, # ^ |
    ← Rev. 2   Vote: I like it +71 Vote: I do not like it

    Like Bruce Willis in Die Hard

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    19 months ago, # ^ |
      Vote: I like it +91 Vote: I do not like it

    Imagine having written a pro-russian comment on russian cp website and still getting a lot of dislikes

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      19 months ago, # ^ |
        Vote: I like it -52 Vote: I do not like it

      UA bots got here with their olympiads' announcements and pro-ukrainian likes

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

        Written from unrated account created 3 months ago.

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          19 months ago, # ^ |
            Vote: I like it -59 Vote: I do not like it

          Written from a still blue account created 8 years ago LOL. I have unofficial submissions of tricky problems in turn https://codeforces.net/submissions/Dinanath94 no time for contests

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

            Written from a still blue account created 8 years ago LOL

            My comment wasn't about skill at all, but that the only possible bots there are the guys like you. If you didn't get that — blue is something you wouldn't reach even in 8 years.

            I have unofficial submissions of tricky problems

            Yeah, this one indeed was tricky.

            no time for contests

            Understandable, commenting here is so time consuming.

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

        You should start thinking about why there are a lot of pro-ukrainian likes and pro-russian dislikes.

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          19 months ago, # ^ |
            Vote: I like it -16 Vote: I do not like it

          Cause this site is visited from Eastern Europe mainly where russophobia flourishes. Here in India, maybe in Latin America and other distant states people are unbiased. Moreover I suppose many russians don't endorse their leader.

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            19 months ago, # ^ |
              Vote: I like it +97 Vote: I do not like it

            You will be surprised, but some people have their own opinions and do not divide the world into "Us vs. Them" or "Friends vs. Enemies". You can have such views in a strategy game. But actual humans are not just resources that their government can use and throw away. You mustn't say "I want that land, so I will kill half of the people who live there so that the other half will agree that I own them".

            You don't have to define yourself based on a piece of land you were born on and on who issued your documents. You can be just a human being, and try to be a good human being, instead of being "a good Indian".

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              19 months ago, # ^ |
                Vote: I like it -40 Vote: I do not like it

              Actually you are always representing something. When in institution/company you represent your home, when in country you represent your institution/company, when outside your country you represent your country. You can only represent humanity when aliens/monsters arrive. One might say here that some humans are monsters, in my opinion yes, but who made those monsters? the community of humanity did. As long as there are humans there will be war. For the purpose of greed, wealth and superiority.

              Your land is everything you have. If you go in a foreign country, you know nobody and nobody knows you. Everything different and strange, races, languages, accents, food, religion.

              Btw, Short Story idea:

              From this moment, Nationalism died and humanity lived. World became World and not USA, Russia, China... This revolution after Sir Um_nik posted this comment. We all owe him for the crisis that happened afterwards.

              I just typed whatever came to my mind, sorry if you think you wasted your time reading this comment. (I don't think you did).

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

                Yes, you can say that you always represent something. But the ways people represent the same thing can be very different. From my personal case: I am Romanian, but I do not feel proud about this or find being Romanian a truly important thing, even though, like all other countries, my country also has a nationalist community. I did not choose to be born in Romania, I do not really like the country, and I do not feel attached to Romanian culture or traditions. Even though I feel some sort of vague connection to Romania (and this became even clearer since I went abroad), I wouldn't say that my nationality is an important part of my identity. You could only say that I represent Romania from the perspective of the person who does not really care about being Romanian. And wait, I actually come from a relatively prosperous country (for Eastern Europe standards) which has not started an atrocious war, so think about the opinions pacifist Russian people have about their country. I find it thus reasonable to identify as a "good human" rather than a "good Russian/European/whatever".

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

            Check the number of users from India and China and compare it to any country of Eastern Europe.

            What about "Here in India people are unbiased" — are you saying that everyone in India has the same opinion? Does it really means "unbiased"?

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              19 months ago, # ^ |
              ← Rev. 2   Vote: I like it -8 Vote: I do not like it

              yeah , everyone in india has almost the same opinion , i.e support to russia. Maybe because of the popularity of putin in shorts and reels depicting him as a goat or the help russia did and is doing to india.

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    19 months ago, # ^ |
      Vote: I like it +73 Vote: I do not like it

    imagine bombing civilians

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19 months ago, # |
  Vote: I like it +48 Vote: I do not like it

Thanks for the mirror contest. Its a shame that nobody said thanks in the first 23 comments.

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19 months ago, # |
  Vote: I like it -56 Vote: I do not like it

BanRussiaAtIOI The Ukrainian government has banned UA athletes from competing with the russians. Follow them, ban yourself

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

If America was banned IOI in 2003, Russia should be banned too.

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

    invader is invader I just want to say and IOI must be act equal to all countries

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19 months ago, # |
  Vote: I like it -42 Vote: I do not like it

fix ur username

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19 months ago, # |
  Vote: I like it -52 Vote: I do not like it

Regarding the terrorist country you mentioned, I would like to ask you to explain why Ukraine has "Azov Brigade" instead of other countries.

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

    What's wrong with "Azov Brigade", and why should we have other countries?

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

Will any kind of editorial be published?

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19 months ago, # |
  Vote: I like it +37 Vote: I do not like it

Slava Ukraini!

Any short solution sketches?

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    19 months ago, # ^ |
      Vote: I like it -14 Vote: I do not like it

    Heroyam slava!

    Yes. We are translating the editorial to English. Will publish it today or tomorrow.

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

      Hi, If it is not translated to English yet, can you please provide us with even Ukrainian solutions? Thanks.

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      18 months ago, # ^ |
        Vote: I like it +14 Vote: I do not like it

      Where is the English editorial?qwq

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

Can you kindly post the link for the upsolve, so that I could submit my code after the mirror contest. Thanks.

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19 months ago, # |
  Vote: I like it +46 Vote: I do not like it

Russian children solving problems on eolymp will be educated and distracted from propaganda

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

A funny solution of day1C. According to the O(n^2) , find the nearest pair of adjacent points with the same value, and limit the breakpoint between these two points, enumerating O(1) calculations between these two points is Can.

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