Monogon's blog

Codeforces Round #639
By Monogon, history, 5 months ago, In English

Hello, Codeforces!

I'm very glad to invite you to Codeforces Round #639 (Div. 1) and Codeforces Round #639 (Div. 2). This contest will take place on May/06/2020 17:35 (Moscow time). In both divisions, you will have 2 hours 15 minutes to solve 6 problems. The score distribution will be announced closer to the start of the contest.

Of course, this round would not be possible without the help of many people, who I'd like to thank:

I've done my best to write clear problem statements and strong pretests. Don't forget to read all problems, and I hope you enjoy the round. Good luck!

Because I know you all have so many questions, I have compiled an FAQ:

  • Q: Is it rated?
  • A: Yes.

UPD

Here is the score distribution.

Div. 1: 500 — 1000 — 1500 — 1750 — 2500 — 2500

Div. 2: 500 — 1000 — 1500 — 2000 — 2500 — 2750

UPD Unfortunately, this contest is delayed due to problems in the Codeforces system. It is temporarily scheduled, but I will update this announcement when a final decision on scheduling has been made. It is sad that my contest is delayed, but let's be grateful that the issue was detected early instead of arising in the middle of the round. On the bright side, this may be the earliest announced score distribution in Codeforces history.

UPD The final decision on scheduling is to keep it as is. The contest will take place on May/06/2020 17:35 (Moscow time).

UPD Unfortunately due to the long queue and other issues, the contest is unrated. There was also a bug that gave us trouble in answering your questions. I'm sorry if you asked a question that went unanswered for a long time. I promise we did our best to answer as many questions as we could! Despite all the problems, I hope you enjoyed the problemset!

UPD Editorial

 
 
 
 
  • Vote: I like it
  • +2313
  • Vote: I do not like it

Comments Comments (549)
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5 months ago, # |
  Vote: I like it +355 Vote: I do not like it

As a tester, I enjoyed the problemset! Participation is recommended :)

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5 months ago, # |
  Vote: I like it +41 Vote: I do not like it

Any specific reason for exactly 2 hours 15 minutes? :o

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

Good luck for you too for 1st problemsetting. Hope we will get a new problem setter who makes good problems.

Btw, the era of "is it rated?" almost ended. Now burning FAQ is "Are pretest strong? Is problem statement short?"

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

2 hours 15 minutes hmmmmMM

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5 months ago, # |
← Rev. 2   Vote: I like it -25 Vote: I do not like it

wow another clear statements ans strong pretest contest <3 

but ... but the contest is unrated :(
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5 months ago, # |
  Vote: I like it +20 Vote: I do not like it

Don't forget to read all problems

It didn't end well the last time the announcement had this text.

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5 months ago, # |
  Vote: I like it -125 Vote: I do not like it

Is it rated?

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

I am a simple man. I see "clear problem statements and strong pretests", I upvote.

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5 months ago, # |
  Vote: I like it -49 Vote: I do not like it

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5 months ago, # |
  Vote: I like it +127 Vote: I do not like it

FAQ is surprisingly helpful.

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    5 months ago, # ^ |
      Vote: I like it +126 Vote: I do not like it

    But it contains incorrect information.

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      5 months ago, # ^ |
        Vote: I like it -28 Vote: I do not like it

      Why exactly is it unrated? Yes, I did read the announcement, but isn't the disadvantage the same for everyone? By that argument, the contest would still be fair.

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        5 months ago, # ^ |
          Vote: I like it +32 Vote: I do not like it

        Sitting through such long queue, shifting to another problem only to receive a non-AC verdict after half an hour. Incidents like this during contest is irritating. Some people give up and leave the contest. No one wants to sit through such a contest only because "the disadvantage is same for everyone"

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

          I can feel u from ur profile pic.

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

      How could they get the one FAQ wrong?

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    5 months ago, # ^ |
      Vote: I like it +108 Vote: I do not like it

    LMAO

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5 months ago, # |
← Rev. 3   Vote: I like it -21 Vote: I do not like it

All guys are awesome. They are give only negative vote. Take <3 from me bruh

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5 months ago, # |
  Vote: I like it -15 Vote: I do not like it

Please make the pretest as strong as you can (/ T — T )/ .

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5 months ago, # |
  Vote: I like it +31 Vote: I do not like it

RIP kuroni

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5 months ago, # |
← Rev. 2   Vote: I like it -46 Vote: I do not like it

Hello!! CODE FORCES :)

Help Please!!

I want to set Macros and shortcut templates for faster Programming in C++ .. Please!! tell me how can i set it so that it will be easy to realize.. Please Share your submission code and give me some advice!! :)

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

    Check out this blog C++ Tricks

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

    Why people are giving down vote in this Comment!! Is it wrong to want help from elders!!? :(

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      5 months ago, # ^ |
        Vote: I like it +72 Vote: I do not like it

      Because you wrote it under an irrelevant blog post instead of asking in an appropriate place. And such posts pollute the contest announcement.

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

        OK. Sorry for this. Please, tell me where i can post this!!?

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

          In your current case I think you should just look around on Google and post only if you are sure that for some reason nothing matches what you found on Google.

          In general though, make a new blog post.

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          5 months ago, # ^ |
            Vote: I like it -8 Vote: I do not like it

          You can also ask in your blog. I think this is the right link to create a new blog.

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5 months ago, # |
  Vote: I like it +31 Vote: I do not like it

super short FAQ and i have nothing to ask.XD

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5 months ago, # |
← Rev. 3   Vote: I like it -24 Vote: I do not like it

thank u Codeforces... Thank u Monogon and all writers :D I hope the Statements are short :)) Good luck to all participants and Stay at home with Codeforces *_^

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5 months ago, # |
  Vote: I like it +16 Vote: I do not like it

Hope to become mamme_hunter this time 😜

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

Monogon What is the proof your existance, except for the analogy with names of other polygons?

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

hopefully this round would be like the same as previous one..short problem statements and fast editorial..

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

I will participate with gratitude for you!

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5 months ago, # |
  Vote: I like it +17 Vote: I do not like it

Schools are like:

Taught in Class: Div2 A

Solved for practice: Div2 B

Homework: Div2 C

Exams: Div2 D,E,F

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5 months ago, # |
← Rev. 3   Vote: I like it -41 Vote: I do not like it

Why is that much negative vote?!

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5 months ago, # |
  Vote: I like it +1 Vote: I do not like it

Really helpful FAQ. Thanks

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

Why there is Pupil in the Div.1 registration?

[Edit : It's fixed now.]

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    5 months ago, # ^ |
    ← Rev. 2   Vote: I like it -12 Vote: I do not like it

    [deleted]

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

    I think that this rarely happens.

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

    Probably because when they signed up, their rating was greater than or equal to 1900， but after a few contests they scored lower

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

      That's only true for the Expert in the registration. What I mention is Pupil in the registration, and it's virtually impossible after the registration CM becomes Pupil because the registration is opened usually within 2 days before the contest. :(

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5 months ago, # |
  Vote: I like it -15 Vote: I do not like it

Ramadan Mubarak And Happy Coding

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5 months ago, # |
  Vote: I like it -13 Vote: I do not like it

Good wishes for all contestants

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

Striking of the word Monogon . Was it suppose to make u feel cool .. I m sorry my friend u failed to do so.

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

It was better to 2 hours & 30 minutes .

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

Good Luck Everyone~!

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

Another question that everyone wants to know:

Q: Can I participate without rated?

A: G̶o̶ ̶t̶o̶ ̶t̶h̶e̶ ̶h̶e̶l̶l Good question! The answer is no.

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

    Every game is a record of our experience. Although these scores are not rising all the time, on the whole, we have surpassed ourselves in the past. Good luck!

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

      Why did you say that to me?

      Anyway what you said is true, except that it does not depend only on luck but also effort!

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5 months ago, # |
  Vote: I like it +71 Vote: I do not like it

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

I failed in the last contest,I wish to be Master in this contest. up,up,up !

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    5 months ago, # ^ |
      Vote: I like it -34 Vote: I do not like it

    Don't know about u, but if I participate I am becoming Candidate Master in this round.

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5 months ago, # |
  Vote: I like it -75 Vote: I do not like it

isitrated?

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5 months ago, # |
  Vote: I like it -13 Vote: I do not like it

Many experts are registered in Div 1 contest!How? And I knew that candidate masters are participants of div 2 contest.Also I was rated in last div 2 contest.But today I can't register for div 2 as rated one.Why?Actually,I'd been candidate master recently...Thanks

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

    Understood the system of my second question.

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

    The experts who are registered for div1 were candidate master before round #638 rating change. They registered for contest before rating change so they are registered in div1. After rating change there rating decreased to less than 1900. This might be the reason behind invalid registration which will be hopefully fixed before contest.

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

are problems sorted?

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

    Yes, the problems are sorted by difficulty.

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5 months ago, # |
  Vote: I like it -21 Vote: I do not like it

Is that rated for Div1 ? :S

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

last statement was funnny

Monogon System

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5 months ago, # |
  Vote: I like it -13 Vote: I do not like it

I am waiting for darklight13 to become blue:)

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

Score distribution plz!

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

Queue got freezed before the contest ........ What does this indicates ???

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5 months ago, # |
  Vote: I like it -7 Vote: I do not like it

Have I not noticed this before or is it the first time a handle is green in the testers list?

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5 months ago, # |
← Rev. 2   Vote: I like it +1 Vote: I do not like it

i hope that this contest will be more interesting as that of the previous contest

because you have you first contest...>

fieryphoenix contest was excellent hope monogon your contest will also be amazing best of luck to you too...!

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

ready for queue forces

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

After the end of the contest will there be any hacking system to any solution? :)

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5 months ago, # |
  Vote: I like it -6 Vote: I do not like it

Is it unrated?

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

Hope Simple statements and Good Luck for everyone！！

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

One general question, why do some Legendary Grandmasters have the First Letter of their initials as black and rest of the name as red? What does the Black character signify?

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

People whose rating crossed 1900 in the previous contest are still in the participant list of Div2 will they be shifted to Div 1 during the contest?

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

    No, Codefoces takes the rating when you register. If you have a rating of lower than 1900 and you register, then you get over 1900 after you register and before the competition, you are still a division 2 participant.

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5 months ago, # |
← Rev. 2   Vote: I like it -16 Vote: I do not like it

Must say the FAQ is very informative.... must have been hell lot of a job for the writer!

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

I am curious about the duration of the contest!!!Can I get the explanation???

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

I hope this contest will also have short problems and strong pretests like the previous one, At least strong pretests.

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5 months ago, # |
← Rev. 2   Vote: I like it -12 Vote: I do not like it

Q: Will it be some live stream on YouTube to up-solve the problems straight after contest?

A: Algopedia: https://youtu.be/HneuObfyDtw

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5 months ago, # |
  Vote: I like it -6 Vote: I do not like it

Auto comment: topic has been updated by Monogon (previous revision, new revision, compare).

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

Why are there two problems with the same score in Div.2 but not in Div.1?

UPD: Sorry for my mistake. I'm used to putting the score distribution of Div.2 at the top when I prepare contests. And personally I think that looks better because the problems are in increasing order.

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

    The two problems with same score are in Div. 1, not Div. 2.

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

Div 2D is again 2000 points. :( That did not go well for me in the last contest.

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

new to CF, so can anyone tell me what the score distribution means?

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

    every problem comes with a different score based on difficulty. as the contest proceeds the score of every problem keeps on decreases.

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5 months ago, # |
← Rev. 2   Vote: I like it +9 Vote: I do not like it

While you're waiting for the contest AOE2 tournament

...well, this is a DauT round.

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

Thank you for making contest for us. This will help us.

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

Seems Div2 E and Div2 F are equally tougher.

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5 months ago, # |
← Rev. 2   Vote: I like it -6 Vote: I do not like it

Why has the contest date changed?

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

The time key of today's contest has been changed?

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

Hope Problems and scoring remains same!

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

Wut??? rescheduled, why???

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

After round is rescheduled for 3 days later

waiting

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5 months ago, # |
  Vote: I like it -7 Vote: I do not like it

I was very much excited for this round. But unfortunately all go to vain. btw have to wait 3 days.

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5 months ago, # |
← Rev. 2   Vote: I like it +13 Vote: I do not like it

Q: Is it rated?

A: Well yes, but actually no

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

Auto comment: topic has been updated by Monogon (previous revision, new revision, compare).

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

Just curious if there's any specific reason why the score distribution is not announced much before the contest??

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    5 months ago, # ^ |
      Vote: I like it -6 Vote: I do not like it

    So that people cannot pre-plan strategies or try to guess their way out about the problem difficulties I guess.

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

Hi, i have a question. The score distribution of div 1 is less than div 2. Why is that?

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

    Why down voting when someone asks question? I know its not the place to ask and his question is literally trash.

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5 months ago, # |
  Vote: I like it -6 Vote: I do not like it

Auto comment: topic has been updated by Monogon (previous revision, new revision, compare).

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

In general, are you allowed to write a program that basically makes your submission unreadable so it is harder to hack? For example, the program can add comments, remove/insert whitespace, etc but it doesn't change that basic functionality of your submission.

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

    No. Code obfuscation is explicitly prohibited by Codeforces rules.

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    5 months ago, # ^ |
      Vote: I like it +65 Vote: I do not like it

    So the question is WHY don't you want others hacks your program?

    If your program really has a bug, others may find it out and correct it for you. Thus you can fix it in the contest in time instead of receiving an unexpected WRONG ANSWER verdict. This case is profitable for you and others.

    So my advice is: TRY to write clean programs. (Although I'm still not good at it :v)

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    5 months ago, # ^ |
      Vote: I like it -55 Vote: I do not like it

    Lol. Why is the score distribution for Div.2 higher than that of Div.1?

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

      Because the div1 guys just act if they would have the harder problems ;)

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5 months ago, # |
  Vote: I like it -15 Vote: I do not like it

Thanks for the faq. Much appreciated.

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5 months ago, # |
  Vote: I like it -10 Vote: I do not like it

Today, i got notice for an internal test (online ) from my college which clashes with this contest . After waiting for 3 days i have to skip this contest , hope its timing can be changed :-(

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5 months ago, # |
  Vote: I like it +35 Vote: I do not like it

Wow! over 2K registration of Div.1, thanks to the delay.

Perhaps it will be the biggest one of the whole time.

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5 months ago, # |
  Vote: I like it +17 Vote: I do not like it

All the best guys!!!

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

I hope everything is going fine today and remains fine until contest ends.

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

We will be live upsolving the round 10 minutes after it finishes on Algopedia: https://youtu.be/E7fiCGAqNJM

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

I will stream poker after the round here. please donate!

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    5 months ago, # ^ |
      Vote: I like it +44 Vote: I do not like it

    if my bro gives me a microphone I will sing too

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

Is there any function or something to check runtime before submit a solution? #need_help

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

Comeback!!!!!!!

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

The network is so unstable and I frequently experience 502 and 504 as I reload

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5 months ago, # |
  Vote: I like it +1 Vote: I do not like it

queueforces

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

Long queue again !! :(

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

Queue is now infinite, but is exactly one submission assigned to each room ?

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

Queue > 10 mins rn

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5 months ago, # |
  Vote: I like it +74 Vote: I do not like it

Unrate?

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

I am unable to submit solution. it's showing "unexpected error".

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

Waiting like should i move with next question or should stick to it till verdict

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5 months ago, # |
  Vote: I like it +101 Vote: I do not like it

Great servers, thanks Mike!

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

Hi, I registered for the contest but I'm being redirected with the message that I should have registered for the contest when I try to re-register it says that I'm already registered :/

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

Unable to enter contest area, bad gateway :|

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5 months ago, # |
  Vote: I like it -21 Vote: I do not like it

problems are very difficult :(

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

You can catch my (little) rate. I'm give up for this constest.

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5 months ago, # |
  Vote: I like it +27 Vote: I do not like it

The long queue makes it really difficult to analyse the bugs(if any) on wrong submissions since the verdict comes after a long time. This really affects the aura of the contest. Though the efforts put by the contest designers and testers and also by you Mike are great, please consider making this contest unrated.

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5 months ago, # |
  Vote: I like it +13 Vote: I do not like it

Getting logged out, timed out on changing pages. Not really able to solve sadly :(

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

    and here I though something is wrong with my browser :(

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5 months ago, # |
  Vote: I like it +20 Vote: I do not like it

Getting logged out, again and again!

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5 months ago, # |
  Vote: I like it +30 Vote: I do not like it

QUEUEFORCES ...

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5 months ago, # |
  Vote: I like it +15 Vote: I do not like it

wtf is wrong with codeforces ................. pretty demotivated

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

whats up people suffering in queueforces

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

Every time I try to submit a solution(without knowing my previous verdicts) I am finding myself being kicked out of contest arena kindly look into it

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

getting logged out again and again stuck in queue since beginning

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

And again $125658, Karl!

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

long queue... it will be great if u make this contest as unrated

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5 months ago, # |
  Vote: I like it +1 Vote: I do not like it

All codeforces in slow motion.

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

Is it still rated?

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

Login-Bad Gateway-Refresh-Logout Repeat

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

The problems are nice but it's upsetting to see that the website is not working properly :(

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5 months ago, # |
  Vote: I like it +31 Vote: I do not like it

I've a very strong feeling that this round will be unrated!

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

SLOWFORCES

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5 months ago, # |
  Vote: I like it +16 Vote: I do not like it

Looks like this contest can't be a rated contest. Is it so, please make the announcemant!

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5 months ago, # |
  Vote: I like it +78 Vote: I do not like it

I really feel sorry for the problem setters, the round was delayed in order to fix everything and still it ends in this horrible way :(

I am not blaming Mike thought, I am sure they did their best :(

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

    But then, this is life. We can just put the best of our efforts!

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

Over 200 pages of submissions (that's ten thousand) in the queue as of writing... Is this a new record?

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

Make it unrated already!

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

Refresh is the new Logout!!

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5 months ago, # |
  Vote: I like it +89 Vote: I do not like it 
Because I know you all have so many questions, I have compiled an FAQ:

    Q: Is it rated?
    A: Yes.

Really!?

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

please make this round unrated

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

The round should be unrated. Even now, I have been experiencing severe session issues. (i.e., I'm being logged out automatically) Even when I go to the m1.codeforces site, the queue is so long that the code I have submitted for Div2 B is not judged in the time I read, conceived, and submitted a solution for Div2 C. Update: The first one was judged after 30 minutes.

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

Seems like this round was cursed

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

Make this round unrated.I fill pity for problem setter. Problems were good.

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5 months ago, # |
  Vote: I like it -9 Vote: I do not like it

Ya please make this round unrated we are not able to submit also and even logout several times and the queue is persisting for hours

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5 months ago, # |
← Rev. 6   Vote: I like it -12 Vote: I do not like it

:(

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

No competition experience, should not be ranked

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

please unrated div. 2. it's almost post-apocalypse

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

Due to long queue I am not able to understand whether my solution is correct or not.I request to make round rated.

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

I'm going to sacrifice my left testicle if the round remains rated.

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

Every time when I am going to refresh, it's automatically logged out, does it only happen for me !!

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5 months ago, # |
  Vote: I like it +173 Vote: I do not like it

Because I know you all have so many questions, I have compiled an FAQ:

Q: Is it rated?
A: Yes.

This aged well.

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5 months ago, # |
  Vote: I like it +17 Vote: I do not like it

I am getting logged out for no reason at all :/

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

    Nobody:

    Codeforces: Delay the round with apprehensions of queueforces

    3 days later

    Codeforces: Good to go with the contest

    Me: start contest

    Codeforces: Double impact — queueforces and "keep logging you out every 10 minutes"

    Me: I won't give up

    Hour and a half later

    Codeforces: Contest is unrated

    Me: Let's give up and go read the comments

    scrolls to this comment

    Me: Bro! Same feels — hit like

    Codeforces: You need to enter into the system before you vote

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

We need quantum computer as soon as possible

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5 months ago, # |
  Vote: I like it +207 Vote: I do not like it

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

This is by far the worst queueforces ever !!

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

Why the questions about the problems and during the contest are not answered by the problem setters?

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

Rank 6, +148, and with Div1.D in queue --**unrated**

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

This round should be unrated.

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

I Think We have reached 35 minutes of queue. Unrated Contest seems to be inevitable now

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5 months ago, # |
  Vote: I like it +56 Vote: I do not like it

Waiting for a submission verdict be like:

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

The judge queue is too long. I have to wait almost half an hour to get the answer. This is the most uncomfortable Codeforces Round I have ever participated.

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

Is Div2 also unrated or not? Div1 got an unrated announcement but not Div2, not sure if I should discuss problems with friends who are in Div2 or not.

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

Mike: We have rescheduled the contest to avoid long queues.

Users right now:

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5 months ago, # |
  Vote: I like it +30 Vote: I do not like it
  1. took 30 min to get result of a submit.
  2. got WA.
  3. spotted stupidest mistake.
  4. submitted again.

Is it a way to show that we have to be reaaaaaly careful with our submits? Otherwise getting 30 min penalty :D

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

Long queue + Bad problem statement

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5 months ago, # |
  Vote: I like it +1 Vote: I do not like it

Worst Experience on codeforces ever.... I had to login more than 10 times during contest

I think MikeMirzayanov should take it seriously bcz it annoying the contestant.

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

is Div2 still rated? As there is no such announcement in Div2

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

    Now i got notification that it is unrated and just solve the problem for fun :)

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5 months ago, # |
  Vote: I like it +182 Vote: I do not like it

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5 months ago, # |
  Vote: I like it +81 Vote: I do not like it

Ok, this is too much. Situations like this happen too frequently on Codeforces. Maybe we should donate even more so you can stop this from happening every 3rd contest or so?

Dear problem setters, please submit your problems to other, more stable platforms. The quality of your problems deserves much more than this.

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

    i mean they could have just added advertisements to codeforces to keep more servers? also I heard they use Windows servers for testing. Maybe Linux would work better? idk

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    5 months ago, # ^ |
      Vote: I like it +34 Vote: I do not like it

    I don't know why people complain about cf when it has bad rounds. It's not so frequent for rounds to be unrated in such a way, when was the last unrated round because of queue issues? Surely not 3 contests ago ... It's hard times for codeforces too, number of participants in rounds doubled during pandemic. And I think at this time we shouldn't have such negative thoughts about cf.

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

Can we have a contest with hidden verdict?

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

    No

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    5 months ago, # ^ |
    ← Rev. 2   Vote: I like it -7 Vote: I do not like it

    In China, we have 'OI' contest rules, and it works as follows:

    • Participants are allowed to submit multiple times, but only the last one will be judged.
    • The submissions will be judged after the contest, so you cannot know the vertict during the contest.

    Chinese OI rounds, please.

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      5 months ago, # ^ |
        Vote: I like it +75 Vote: I do not like it

      I hate null feedback rules. Newbies should especially hate them.

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

        In fact, the first time I see the long queue, I have pretended to participate in OI rules, and because I have participated in so many OI rounds in China, it seems perfect!

        In addition: I would probably become 2900+ had this round been rated.

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          5 months ago, # ^ |
            Vote: I like it +52 Vote: I do not like it

          That's real bold, calling your rating increase based on 0.5 hours of evaluated submissions before the round was announced to be unrated. I've also had very good results in some quickly unrated rounds, guess why.

          How about this: make your own website where you'll host contests with these rules. I'm sure all the Chinese LGM-tier contestants will appreciate it for the same reasons as you do.

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

      That looks similar to what Topcoder does.

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

      Is there any Chinese website like CF or AtCoder?

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

If this round is still rated, I think it is really unfair for contestants as the judging time is too long. It took more than half an hour for a single submission!!!

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

wtf

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

Offlineforces:/

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

Mike: Coronavirus, can't get into our systems. Becoz its not the software based virus, it's a physical one.
Corona: Causes lockdown worldwide, increases the number of participants in contests, blows up servers.
Mike: wtf !

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5 months ago, # |
  Vote: I like it +29 Vote: I do not like it

The problems are so cool, so it's a pity that we can't enjoy them completely because of the long queue :( I hope that everything will get better. Live Codeforces!

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

as expected round is unrated sed lyf :((

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5 months ago, # |
  Vote: I like it +15 Vote: I do not like it

Because I know you all have so many questions, I have compiled an FAQ:

Q: Is it rated? A: Yes. Mike: Actually, no.

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5 months ago, # |
  Vote: I like it +1 Vote: I do not like it

This is what happens when the contest is postponed by 3 days---> Unrated

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

the answer to FAQ turned out to be wrong

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5 months ago, # |
  Vote: I like it -6 Vote: I do not like it

Besides the long queue, why the overlap between div1 and div2 is too high? So if someone solves all problems in div2, they could be top10 in div1.

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

    Do you really think it's so easy to fc div2? Pfft, please...

    Anyways, if this was actually a rated contest without the queue issues, div1 top 10 will definitely not be 4 ACs by end of contest (it's a six-problem round, probably at least 10 people will solve E or F). So your point is pretty much invalid.

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

      Read my comment again. I talked about the high overlap not being easy of solving all problems.

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

        That's the norm for how div1 and div2 rounds work.

        The easiest two problems are only in div2, while the hardest two problems are only in div1. Given that the two divisions are directly touching ranges of rating, the overlap makes sense in balancing the difficulty of the divisions.

        Also, your premise is that "if someone solves all problems in div2, they could be top10 in div1", which is itself a flawed premise because 1. fc in div2 is actually quite rare, and 2. top 10 in div1 only solving 4 problems is also quite rare.

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

Now you know how a TopCoder SRM feels like

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5 months ago, # |
← Rev. 3   Vote: I like it +21 Vote: I do not like it

Declared unrated now. Feeling bad for the contest organizing panel. Though it was a bad experience for all of us, but I still appreciate Monogon along with the whole contest organizing panel for their efforts. It is not easy to be on the other side of the table. Thank you!

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

i submitted sol of a in 8 min but it was not showing in submission tab there i reload the page several time around 10 min because i was continuously logged off and my submission was not showing in tab and also not showing in queue either therefore i resubmitted again .and after 5 min of reloading i see two of my solution in queue! miracle ! REWARD -50 points(resubmission) and headache/tension. if site cant handle too much traffic just make more divison to handle lesser participants per division. AGAIN SED LYF MONOGON .

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5 months ago, # |
← Rev. 2   Vote: I like it +63 Vote: I do not like it

The irony is that the one question answered by the FAQ has been answered wrongly.

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5 months ago, # |
← Rev. 3   Vote: I like it -66 Vote: I do not like it

thanks for wasting my time !!

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    5 months ago, # ^ |
      Vote: I like it +35 Vote: I do not like it

    Contest contained a lot of good tasks, solving them was definetely not a timewaste

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    &r