True. And it's much harder to get the same performance at Div.1 than at Div.2.

ARC186A An amazing constructive problem.

...And Unrated too.

It's my last NOIP. Good luck to all!

Support, once solved E 1min after contest and had to wait until next day(because contest finished at 0:35 local time)

Please, don't downvote without reason. I really don't know what "comtest" means. If you know it, please tell me.

Nope, it seems that COCI starts 25min after the CF round ends.

The contest is about to start in an hour, but only 17000 people registered!? Is this a special feature of Div1+2?

Last Div2 30000+ people registered, and this one is a Div1+2, shouldn't there be more people?

Upd: I actually solved A! A really nice constructive problem!

The only difference between ARC184 and this is that I can solve ARC184A, but I can't solve the first problem of this one...

Is fft required in 1C?

CF Div1 >>>>>>>> Luogu

The fifth reason: Upvote your major's comments to farm contribution.

Claimer: I don't have alts.

At least all your start times are before 22:00 :)

Mine: 00:35 at the first row O_O and tons of 22:35 @_@

Mine plzzz

I wrote UNO, mahjong and a dice game.

You can write a C++ game yourself. After written some games my implementation skills improved a lot. (Well I think it's because when you are writing projects, your mind is very clear about what you are doing and what should do, and this is very important in CP)

Also you can participate in ABCs.

Solved B at 119 min 46 sec! Thrilling!

The A of AGCs are smarter than me. Maybe I can actually struggle on A for 3 hours >_<

Oh, I thought that "problem statements aren't available" issues only happens in m1/m2/m3 websites. I haven't encounter any of them in the mirror.

m1/m2/m3 can be used during the contest.

And I especially recommend the mirror website. It is just the same as the usual website, can be used by carrot, and don't have human verification. (And of course the web load is much lower)

The mirror don't have verification. That's nice.

I think C is a very standard problem. Similar ideas appear in many problems such as ARC169B.

As a participant, I think a space is missing in the title.

Upd: fixed :)

ok. I'm wrong.

Relax, it's just another 74's redemption round. I believe he'll make it great.

Sorry for misunderstanding.

LMAO. Their coding styles and templates are exactly the same. Maybe I should write a blog about it.

nifeshe

Not rubbish, but Atcoder Regular Counting 180.

Yes

Passed B by guessing a greedy approach according to the sample output.

Finally reached 1Dan! (according to ac predictor)

Hope for a funny and relaxing contest on International Children's Day.

C is not a C. D is not a D.

I think CDEF should be DEFG, and insert an easier C.

ABC 353 may include:

• Primes ($$$353$$$ is a prime)
• Palindromes

Thanks! Got it.

Same issues has been discussed for a long time. For example, here

Set 3 start times of the match is not appropriate if you think a little deeper about it. Nowadays cheating is already a big problem on CF, and if programmers can choose their start times, then the contest itself will completely lose its fairness.

I see you comes from China. As a Chinese myself, I think 22:35 is okay in the weekend. After all, a contest time can't satisfy all programmers around the globe. If you want more practice, you can take part in contests in different websites.

Maybe not that easy. AGC065's A worth 500pts, and I spent 154 mins to solve it.

An AGC! But wait ... A 600?

It's on my birthday!!! But I have to go to the school ... T_T

Wow! 300-300-500-500?

imo, B<C<<A

btw, AC A on 118min is NICE!

Well, false hope...

Hope G be as friendly as previous rounds.

D <<< C

and $$$7\ast 7\ast 7$$$

The interactive problem is for div1 or for both division?

actually not. Almost under every round.

1. It's impossible and unreasonable to let participants set their contest time themselves. Detecting cheating is impossible in that case: I can simply ask for the solution ideas for every problem and solve problems very fast, and you can't prove that I cheated.
2. I agree that the start time is pretty unfavorable. I think 16:35 would be better. (Moscow time)

Hope to reach 2024

same issue here. I think there's some bugs on the difficulty calculation of the unsolved problems.

A is similar to AGC001A

Why is the rating update today so slow?

A with 500 points, the first time in ARC history!

lovely score distribution :)

System test was fast, anyways

very unclear statement of problem C.

Spent 30min reading the problem and just 5min solving it.

lovely score distribution (´･ω･`)

There will be one more day in 2024 than in 2023. Therefore there's no doubt that those data will continue to increase this year! Hope Codeforces be better year by year!

Both BCD have 600 points?

2 hours and 7 tasks :O

How many problems are there in both divisions?

btw the duration of 2h is pretty nice :)

E>500 Round? Hope not as hard as 332.

A with 500 points? Seems a tough round.