Привет, Codeforces!
Мы, AlperenT, flamestorm, ToxicPie9 и willy108, приглашаем всех на Codeforces на April Fools Day Contest 2024! 12-й Конкурс первоапрельских розыгрышей пройдет 01.04.2024 17:35 (Московское время). Это шутливое соревнование, в котором решение задачи часто проще, чем понять, что за задача вообще.
В этом раунде вам будет дано $$$n$$$ крутых багабу, где $$$-1 \le n \le \textbf{[REDACTED]}$$$, и 2 часа для их решения. В конкурсе будут использоваться расширенные правила ICPC (нет хаков, позиции определяются количеством решенных задач и штрафным временем, полученным за них). Вы можете отправлять решения на любом языке, разрешенном на Codeforces, если задача не указывает обратного.
Обратите внимание, что раунд не рейтинговый, и штраф за неправильное решение составляет 10 минут.
Чтобы представить, как будет выглядеть контест, вы можете посмотреть на контесты предыдущих лет: 2012, 2013, 2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023. (Прошло 12 лет с первого Конкурса первоапрельских розыгрышей, спасибо Nickolas!)
Пожалуйста, не отправляйте никаких запросов на уточнение во время контеста, так как мы определенно не будем отправлять забавные ответы, как в прошлом году.
Удачи и веселитесь!
Is it rated?
It's mentioned in the post that the contest is unrated.
It is mentioned in the post that's why he is asking.
1st April Rules
1.Do not trust anything anyone says
2.Do not trust the first rule
Ohh my bad, I didn't know that the April Fools thing applied to this post as well.
or did I?
"Hey, Vsauce Michael Here..."
I don't trust even you
It's mentioned in the post that the contest is rated.
Why?Or whether the previous contest was rated?
Is it rated?
Well, if these kind of crap questions are asked in April fools, then I would prefer to pass.
Yes..... except that the rating goes to a different destination.
i always see you to send the fisrt comments. it's fast!
no
Man those problems are tough tho
Yes, but this is that time of the year when we peasants have the chance to beat these GMs and LGMs.
Do you love April Fools?
Yes:
Definitely:
Absolutely:
Without a doubt:
Of course:
wth howd u do that
Good luck!
My first unrated contest <3
It is the first for me too
CodeforcesApril Fools lovers!Imagine the contest was the april fool
Imagine the whole codeforces was april fool
Imagine the entire internet is April fool
Imagine the world was april fool
Imagine the whole universe was April Fool.
Imagine April Fools day was April fool
Imagine whole year was April fool
Fool whole April Imagine
dad?
Imagine Existence is itself a april fools.
my life sure is
me when i see flamestorm hii flamestorm
MAY THE POSITIVE DELTA BE WITH US
As a problem setter, JNybraNfNW. This will be useful in the contest with probability $$$\frac{33}{66}$$$.
UWU
make it 69/69
I'm gonna take a screenshot of the blog to be safe in the contest
Can we hack questions?
No
1st April Rule-Do not trust anything anyone says
Why no April fools in 2015
https://en.wikipedia.org/wiki/Ice_Bucket_Challenge
Downvote me please
Negative farming plan going well yeee!
Do this in the rating, it will be at faster rate
.
As a tester, I recommend you to participate in this contest
will it be rated but with contribution?????????š
petition to make this an actual thing
I hope for this to be my last rated april fools day contest
Is REDACTED 142024?
Finally unrated for me)
at the end when it's time to begin the contest you will say we make you fool there is no contest today.
After contest
orz
I want to prank my friends on April Fool. Comment down your suggestion
ngl I love the April Fools rounds more than the general cf rounds!
Codeforces Sucks Its Actually ####
sounds sus, is it actually !!unrated :skull: ?
Goodluck and have fun everybody!
The best pranks u get on April Fools are the problems from this contest :)
https://codeforces.me/contest/1812/problem/J -:]
Give me AC, please
Is it rated?
NO
As a tester, at most √n of the problems will be interactive.
good luck
Problemset leaking: http://surl.li/scemq
April Fools contest 2023:
200162861
APRIL FOOLS!!!!!!!!!!!!1 (please do not read this.)
$$$502326648535222453054166634657971818804572580255694785590270206376 8930526665237598287495728218692003974024554431302197916749141462764 8054421626450903732301970386214502290904360792618559102961459988990 2115472391135622402044979347133959392884686037208893694733655783395 15548699615181802856501740938959*99999999999999999999999999999999999 99999999999999999999999999999999999999999999999999999999999999999999 99999996942099999999999999999999999999999999999999999999999999999 9999999999999999999999999999999999999999999999999999999999999999999 99999999999999999999999999999999991999999999999999999999999999999999$$$
Imagine that, there is no problem as given.
Have fun :>
as a tree i want to have children
am I a tree ?
The round can be rated!!!!
I'm new to this April fool contests but i saw 2023 one and i'm very confused! Can somebody give me a brief summary about what's this contest about!
- April Fools Contest
And it isn't rated right? i know it says Unrated in bold but it has happened before that they made it rated even after announcing "unrated" right?
Just check if anyone participated in previous April Fools contests and gets rated =)
I did. It was unrated.
Or was it?
Is it rated :"3
Why can't it play as a team? After all, I think it's more fun as a team.
Please don't say you guys were joking making it rated after contest ends (T_T)
imagine every bold written words are their opposite
April Fool problems always harder than normal problems
Is it rated ?
No
Absolutely not, a thousand times over
Imagine calling unrated is a fooling material, in real this contest is rated :3
can't imagine
Guys here is the problemset that I’m found:
https://youtu.be/vXYVfk7agqU?si=Qn7m9ECd69R7q_fn <—- 100% REAL NOT JOKE
What if at the start of the contest they say APRIL FOOL there is no contest.
Upvote me please With ease If u dont have disease Or dis ease Else i’ll cease ✌️ peace
Demnbro
How hard will be this contest? Is this contest like Div2 or more hard? You guys have any idea?
It'll be of a different kind, as they said in the post, you can see the past editions of the contest to get an idea of the kind of problems
The observing parts are quite hard but there are a few easier problems. The implementation is extremely easy though.
You can try to write the shortest code if you want a challenge :)
Is it a rated?
Unrated? Is it a joke or not?
Maybe
Hoping to become specialist this round!
Honey, I love you.
me going cm this contest lesssgo
is it rated u sure ?
yea yea ofc
noice! btw u have already gained respect from myside (IIT and expert) orz
thanks buddy appreciate it :)
AYO MAN I LOVE GLAMOC DAWG I HAVE BBEEN BANNED FROM EMC NEXT DESTINATION BAN: CODEFORCES SOON->
LONG LIVE GLAMOC
i hate ni
It was my first time attending April fool cf, and hopefully it will be my last time too. Bye!
Please upvote me once, i don't want a -ve contribution on my profile: Plzz
"Coding like poetry should be short and concise".
April Fool Joke for You:
Why did the tomato turn red? . . . . . . Because it saw the salad dressing!
Why Negative now it's -4 :(
LOL
At least you can upvote :(
acha tu toh jamshedpur ka h ok then i upvote
The first and possibly the last time in my life that I have defeated tourist
Lol
I need editorial for this problem Are You a Procrastinator? if it exist after the contest...
you guys are successful in making April fool of me with every damn problem
What I think about F:
i want @umnik screencast for this contest with musikk
WTF 0 solves in $$$D$$$ for 100 mnts , then suddenly near 1k solves within a few mnts !! what the hell is happening!!!
Exactly!
just you have to print YES in the end of the contest
I tried to submit this in the last 5 seconds and I got "you have already sent this code" message. I think I did better job in procrastinating than everyone who got AC
Same but adding comment will prevent this message
I tried but was late by 1 second
Oh shit !! I tried figuring out connection between PHP and procrastination when I saw first submissions were in PHP
?!
problem was called procrastination. so u couldn't get AC until the end of the contest
problem changes cause we are Procrastinators !
the moment they changed the statement, everyone crashed in it :3
The contest was nice.
They Have Really Fooled us T_T.
it has to be rated;
Problem F is really unfriendly to those without a phone. XD
Google "qr decode online"
Thankfully, I found QRazyBox.
how was QR code involved in F??
It was a binary representation of a QR code. By converting it into an image using any website you would have gotten the final text as "maximum 4*4 sum" which means take every submatrix of size 4*4 count number of 1's and take max of all.
https://github.com/bahamas10/binary-to-qrcode
You could've pasted the input into this tool, then scan generated QR code. It would tell you " Max 4*4 subgrid sum "
Not really? At least on (fairly recent versions of) Windows its just Win+Shift+S to take a cropped screenshot and then use a site like https://scanqr.org to decode it.
-Evil problemsetters
Man problem D was insane. I was the 14th solver for this problem
hardest pset ever :)
Imagine getting WA on C with 5s left in the contest because you put an extra value in your array by mistake T_T.
what was logic for C
This contest really fooled me Dozens of WA! :/
I spent way too long on D thinking the easter egg and "no" and "yes" and "lie" and "procrastinate" meant anything... :(
Me too. And you can try "never gonna give you up" :)
I am a procastinator
I spent all the time thinking number 12 in Problem C meant the 12 months of a year.
I was on the same path but I realized there are 13 different inputs
When i realized that i thought in the zodiac signs, cause there are 13 signs with ophiuchus. I know it makes no sense xd.
just awesome and fun
I'm excited to read the editorial.
The best April Fool Contest I've ever been participated in. Nice job!
OK I found this awa Happy April Fools Day!
What’s ur hardest?
what is the easter egg?
problem J is so funny!! lmao when I was solving it
April fool contest really made me fool
rainboy started the contest from the front. Thanks to April Fool.
Again an awesome problemset from the same team. Thanks for fooling me!
Procrastination
What a fool i am i understand after giving the contest!
In D, I printed JNybraNfNW which led me to the easter egg osnxymbjws. Then i printed osnxymbjws which led me to rvfqjqrfgp and asking to give up. Then i printed rvfqjqrfgp which led me to zcaziobjzu and asking me to leave suggesting that all these incorrect submissions causing me Penalty. Then i printed zcaziobjzu which led me to rymhtsgare saying that Fine, this is what you are looking for. Then i printed rymhtsgare which led me to ckkjqfhfrb saying that I have been Fooled. Then i printed ckkjqfhfrb which led me to xfbntvovfq. Finally i printed xfbntvovfq which again sent me to jnybranfnw forming a cycle.
fun contest
this was fun
How many tried to find a 01-QRcode decoder like me. I thought the QR Code was the code for 12, but I didn't try to scan it because I don't know a fast way to turn it into a scannable QR code.
This website may help you. https://merri.cx/qrazybox/
Yep, then I gave up searching for one and drew it in some random pixel art website after seeing so many AC.
For future contests: https://github.com/dpaleka/qr-reader-matrix and https://github.com/ewino/qreader.
The extended-ASCII code 178 is a character like this: ▓
You can replace what you want to be black to this in your (programmer's) text editor and it should scan provided that you use a decently monospaced font.
I opened mspaint, made resolution 21x21 and simply drawn it pixel by pixel.
When will be the rating updated? Is it rated?
I have a bad news for you....
The contest is unrated
Which Unc wrote problem J
Instead of being online nonstop you could already sent mail
This contest really make me fool
Chin Chan Chon mann
Yes I know and that's is why I'm coming but I need to come first this is the base case
Hey Alparent, your back side is white!! XDD
Why should April Fool's Day competitions be rated?