Codeforces был запущен мной в январе 2010-го года с целью сделать жизнь любителей алгоритмов и задач интереснее и полнее. Был выбран курс на три направления, которые развиваются и по сей день: соревнования (раунды и чемпионаты), социальная сеть (общение — блоги, комментарии, оценки) и тренировки.
Первая версия Codeforces была написана мной во второй половине 2009-го года, вскоре после запуска сервиса подготовки задач Polygon. Довольно быстро стало понятно, что Codeforces требует больших вложений сил и времени. Постоянный рост аудитории, интерес к раундам и уверенность в пользе задуманного — вот источники моего вдохновения с момента старта Codeforces.
5 лет — значительный срок и символичная дата. Команда Codeforces будет признательна, если вы найдете возможность поздравить нас с праздником и сделать вклад в будущее Codeforces. Даже поддержка в размере стоимости билета в кино или обеда в кафе будет ценна для нас.
Собранные средства пойдут на увеличение рублевых поощрений авторам соревнований в соответствии с выросшим курсом доллара и на поддержку координатора задач Максима Zlobober Ахмедова, который делает большую работу по подготовке каждого из раундов.
С благодарностью,
основатель и руководитель Codeforces
Михаил Мирзаянов
UPD: У нас отличные новости!
We love you Mike ^^ Thank you for your brilliant, hard work delivering such a wonderful platform...Codefoces ^^
I love you too Mike but I don't have any money to give, So, Instead, I give you big kiss :-*
:-)
I love Mike too, but also I want to say thanks to Codeforces Team and to all Authors, who prepared excellent contests for us. It feels that every contest has been made with love :)
Thank you Mike for your awesome work! We all love you and your team. When a contest comes, it feels like I am going to play game with thousands of friends. It's a great fun and excitement!!! I will definitely donate some amount (not so big, just as a token of my gratitude) for my favorite codeforces team :) Wish your every success in life. God bless you!!!
I would recomend to post here bitcoin address. I don't have large amount but I'm sure that some guys here mined a lot in 2009) Probably, somebody is so generous to share notable sum in bitcoins but too lazy to convert them to Visa/PayPal.
Due to increasing stupidity of our government (especially related to IT), bitcoin is very likely to become illegal in Russia soon.
When I have nothing to do, I open Codeforces, then I've got pretty much things to do. It's a great hobby to contemplate solutions and read editorials. All those contests and editorials are really helpful. Thank you, and congratulations!
You open twitter! :)
I tried to donate, But when I select support, it shows a form in Russian.
Do you mean a form on the PayPal website?
Yeah. I translated it and tried to pay, but it showed my card was rejected. Is anyone else facing the same problem?
I met the same problem, but managed to donate at last. Since I don't know what happend, I'll just write down what I did.
I chose VISA and US dollar.
I don't think this would help you so much, but I wish.
It helped me, especially the trick how to translate to english (changing value in first dropdown).
make sure you use a credit card and not a debit card.
Instead of clicking visa/master card, you can click paypal. Then you can input your card info and donate without registering/signing in. The form is in English, and no other issues.
a lot of indian cards are not accepted on paypal u need to contact your bank and enable international transactions see this link
i really like to donate but right now i have no money :( one day when i grow up :D i will do my best to donate :D happy birthday(anniversary or something like that :-"") (:-red_faced)
:| bashe !!!!!
U never grow up because when U have 16 years old codeforces is 5 years ...... and when U have 21 years old codeforces is 10 years ...... and when U have 26 years old codeforces is 15 years ...... ( 16 / 5 ) < ( 21 / 10 ) < ( 26 / 15 ) ....... then after several years you get Smaller in terms of age as codeforces As a result U never grow up when ( Ur age / codeforces age ) is make smaller :)) then U never can donate anything to codeforces (heh)
Age is NOT relative to Codeforces' age...
namusan !?
;)
Thanks Mike for giving us such a nice platform... CF is really nice to do. thankUsomuch. :)
It works via PayPal for me. On the first page which is in Russian you simply need to choose payment method and currency, I think.
P.S. $1643 — собрано 16% — so the goal now is $10000? Nice to see this Sponsored by Telegram changed in the sharing page — great joke :)
P.P.S. Just wanted to say I'm really thankful to CF though currently I rarely participate here at all. CF was my way to learn Java speedily... :)
Wow sum increased by about $1000 for the last two hours — it seems that the target could be ten times greater easily — congrats!!! :)
Actually 10k$ is mentioned in the video.
Ah, I see thanks — I missed it since I usually prefer not to watch videos at work (except ones about cats)!
Last year, we (UTokyo) won Silver Medal at ICPC World Finals partly thanks to this site (I have solved more than 1000 problems here), so I'm thinking of donating 10% of my share of the prize ($4500 / 3) to "buy" the exclusive T-shirt...
I applied for a credit card yesterday (to link to my PayPal account), but it seems to take at least 3 days, and by that time it is very possible that $10k is already reached. Will you still accept donations after the target is achieved?
You can also link bank account to PayPal account, I think that should be easier than credit card.
Thank you for the information. Well, I have just received my credit card. OK, Codeforces, $150 is a bit too much for a T-shirt, but anyway send it to Japan!
Размер пожертвований получается далеко не анонимным — можно обновлять "Список поддержавших" и смотреть, как меняется число справа от него. Впрочем, наверное, это и не предполагается анонимным, раз будут беджи-футболочки. Но тогда можно уж сразу в списке напротив хендла сумму указывать :)
я думаю это норм когда он "не очень открытый" — если кому-то исключительно хочется узнать — тот раскопает / докопается — но сама страница со списком жертвователей при этом позволяет сдержать в людях ненужные, не красящие их чувства... :)
UPD но что интересно — "бейджиков" я пока ни у кого из списка жертвователей не увидел, так что если судить по ним, каждый внёс либо $5 либо неизвестную сумму на анонимных правах — впрочем, вероятно они появятся позже... :)
UPD2 а, в письме направленном на почту сказано что бейджики и прочие регалии появятся вероятно после сбора суммы.
Беджики сделаем совсем скоро. Это больше относится к сертификатам и футболкам.
You make me red i'll give . . . . . . . . . . . . . . . . . . . . 1.38$ :D
I love Codeforce :) Happy Birthday codeforces :)
Thank you very much. Simple as that
Best site to do competitive programming !!
Codeforces is a magical site!
Codeforces has become a synonym for competitive programming.. Tons of gratitude to Mike from all of us..
Thanks a lot for making a good platform like CF .... I think CF is the best among all the online judge. I always like CF.
Bcause of boycotts helping from Iran is not possible(at least it's not easy!); But we still can wish good days for CodeForces!
thanks a lot for your great work in creating a system of Codeforces,I really learn a lot from here even though I'm a newbie...
Happy Birthday Codeforces:)
Live Long && Prosper
Congratulations... :) :) :D <3
Congratz :D
thank you for your effort
HappyBirthDay Codeforces :)
And wish u BestOfLuck :)
Congratulations and thank you Mike for giving us such awesome platform! Love practicing and learning on CodeForces. :)
tourist of support!!!
I want but I can't pay!!!
Happy birthday!!!!!!!! I love CF)
Do you ever feel like giving these contests? @Mike
Happy birthday CF
Happy Birth Day to you CF.. Many Many Thanks to Mike Mirzayanov , for giving us such a competitive platform... I Love CF...... :) But sorry, I'm unable to Donate... It will be my pleasure if I can.. Happy Birth Day....
H B Codeforces! I never saw better sit. P. S. can you use not only of those paying sistems because lot o f people in Turkmenistan can not donate(
Thanks. Why? Are Visa and MasterCard allowed in Turkmenistan?
Thanks a lot for giving this great platform of programming. And my best wishes to codeforces in this birthday.
who can be a "tourist of support" ???!!! :) we wait for a thanks round in honer of her/his name
rip english
Great plate farm to start .....testing your skill
too bad you dont have any skills to test
Happy Birthday to you, Happy Birthday to you, Happy Birthday dear CF, Happy Birthday to you. May the good Lord bless you, May the good Lord bless you, Happy Birthday dear CF, Happy Birthday to you
love u mike :D
I prefer writing a contest instead of donating money, but sadly Zlobober never responds :(
By the way, did anyone notice that today the attempt №10 000 000 was submitted? Сheck it out!
Кстати, кто-нибудь заметил, что сегодня была отправлена попытка №10 000 000 :D
One day passed and we already raised nearly half of the sum!
Good job community!
Congratulations!!!
It'll be better if the contribution could be increased:)
There are some things money can't buy. For everything else, there's MasterCard/Visa/PayPal/Yandex.
I wonder is there anyway for Iranians to donate?
You can buy visa gift cards.
Мне кажется или все хотят футболку codeforces 0_o )
Нет. Судя по всему футболку пока хотят только 29 человек, включая меня.
Можно только лишь просто хотеть, а можно не просто хотеть, но и прилагать усилия к осуществлению своего желания. Большинство просто хотят)
I wish Codeforces to be better and better.
Положил деньги на карту, добавил карту в paypal, тыкаю платить, щелк, щелк... "предоставьте ваши паспортные данные" и список... в котором нет моей страны o_O
Попробуйте прямо с карты оплатить через Яндекс. Для оплаты с карты аккаунты в Яндекс.Деньгах или в PayPal не нужны.
Сработало !! Столько радости ))
Please pay editorialists to write better and awesome editorials. Then Codeforces site will become perfect.
Exactly! That's where the impact of effort is really significant. Detailed solutions, better English, editorial being posted right after contest is over!
Thank you so much Codeforces.You are an integral part of my life.
I don't know how to express, but you really did great! I'm thankful for everything I've learnt from Codeforces. Keep it up for us! God bless you :)
А разве бескорыстная помощь не должна ценится больше чем 1000$?
I noticed that the 10,000,000th submission occurred yesterday during contest 293!. What number will there be in 5 more years?
In some parts of the system we store submissions packed by bits and we laid 28 bits for submission.id that means I hope it doesn't exceed 268435455 :)
It will someday, definitely.
nearly 134 years old~ I wish Codeforces will reach that day.
There's a good chance it will still work after overflow.
I also wish I can code until that day so that I can see that amazing view
nearly ten years upgrowinggggg
Надеюсь, что с этими деньгами CF не будет тормозить перед на чалом контеста.
Надейся
Codeforces 5 year, which are TopCoder's fall down.
If TopCoder does the same, they won't have any money :-D SRM651 unrated again today :-(
congratulations to codeforces!!!
I want to help but I don't have money,Mike do you have money to lend me I bet I'll return it :D
Just thank u codeforces
Any way to support Alipay? =)
You don't need Alipay, just use UnionPay for PayPal.
I don't have any money in my unionpay card. =(
As soon as I knew about this I helped and urged my coders fellow to do the same. This kind of projects should not only survive, but grow in every aspect: participants, servers, quality.
I wanna thank you guys for starting this big project and effectively increasing today's coders skills, hardly can imagine the amount of time and resources it takes!!, I am sure we will have this project ongoing, as people realize about the importance of it.
Thanks again!
100 * 150$ =15000$ > 10000$
Why there is a limit for 150$ donation Exactly???
I think there are no more than 100 T-shirts. So they put a limit on donations. These limits are not for $450 and $1000 buddies 'cause they donated a lot and they deserve ordering a T-shirt for them.
First thousand$!
Happy Birthday Codeforces.
Feels rather weird to wish a site happy birthday.
I just noticed something. Repeatedly using "plus all previous rewards" isn't a good idea. What it means is if 1st category gives you x, 2nd category will also give you x, 3rd will give you 2x, 4th will give you 4x ....
In other words, "tourist of support" gets 8 badges of honor.
And my sincerest thanks to Mike and everyone else who has put their time and energy into making Codeforces the wonderful place it is.
10090$ in all now > 10000$
Thank you!
Codeforces. It's the best computer game in the world. MMO prg My best entertainment :)
Looks like we will have >=2 Thanks-Round. Can't wait to know who they are!
one of them is cgy4ever
多发发沙发沙发大啊
Let's increase goal. For example you can increase it up to 25K $.
Раз уж появилась такая вещь, как почётный бейдж за поддержку codeforces — как насчёт ввести таки аналог системы достижений? :)
С возможностью выставления на место бейджа некоторых наиболее крутых "ачивментов"
Congrts codeforces.com for making such an awesome platforms.
I don't have money to donate because I am 15years old now.But one day when I grow up and get my first job defintely give a share of my first salary % to codeforces team
hai~! sheng ri kuai le! Happy birthday our codeforces.~! Glad to code with you ,all friends from all over the world~!
Can you make the thumb icon click-able, I spent lot of time wondering why it is not click-able and how should I donate ?
You may click one of the sums below
When trying to donate by PayPal, I see the following error:
This recipient is currently unable to receive money.
Your purchase couldn't be completed
There's a problem with the merchant's PayPal account. Please try again later.
Thank you, it is fixed now:
Your PayPal Account has been Restored.Поздравляю!
Wow! You are tourist of support ,what if Petr want to support is that statement will prevent him :P
hello mike i love you and i love codeforces i have not international bank account for pay gift you I just say you all my code dedicated for you
The funny thing is that all of the last donators have a badge (which I believe is only obtainable with a multiple of 15), meaning that this number was either achieved completely coincidentally, or someone planted it a while before.
On a more serious note, this sum was collected in just 5 days, which in my eyes is a fantastic display of how valuable this resource is to the audience it accumulated. Congratulations on the anniversary!
Maybe some of them donate by Russian Rubles and dollar changes his value almost daily and when Rubles converted to dollars maybe you lose or gain some dollars so this number almost 13335 or 13340
I have been long time no code in CF but CF is very nice platform for person who like coding.Happy Birthday!THX
I donated 1 day worth of my income as a student, and I would like to encourage everybody to consider donating at least 1 hour worth of their salary. It makes sense if you spend many hours on Codeforces :)
I donated, now implement a spoiler tag! Seriously, it would be really useful.
some hidden stuff here...
.
Testing every single javascript makes a comment here! Oops.
Can you make the Thumb clickable
What do you expect to happen when you click the thumb?
I think it was a donation to have more and better contests! Long time , no contest even on contest list!
I think there will be VK Cup unoffical in contest list soon.
In last five years, codeforces became popular only for you guys. Please, continue it and we all are with you. Thanks
Happy Birthday CodeForces.
I have learned lots of new and interesting things here. Mainly because of the CodeForces, and other programming competition platforms, i improved myself and passed job interviews. Thank you so much. Wish you the best in preparation of future contests and events.
Интересно, а что будет, если заполнить до конца (200 из 200 и 100 из 100):
I hope Codeforces can be better day by day!
Yeap, 20K — well done guys.
What ? Are you that poor ? All of 9000 users at Cf donated only $20000. If I had money as much as you, I would donate $1000 every hour. You are all stingy and poor ! ALL OF YOU ! I AM THE BEST !
Please shut up
Do you want me to tell you why you do not have "as much as" them or you will figure that out by yourself?
you tell please. I am very curious now
I am more likely to take part in it if the contest is held on weekend. Because I am more than tired to have class when taking it at midnight or before dawn. So it is less efficient to have class.
On weekend, I have no class.
水一发...
Happy birth day codeforces
Congratulations!
Thank you CodeForces team for such an awesome work ^_^
Congrtaz.... ! :)
Thank you mike for this awesome platform.
thank you for every thing you are amazing ^^
congratulations (y)
Hearty Congratulations to CF !!! Basically this is the platform that has helped me improve my coding skills the most !!!
again congrats! CF
Thanks to Codeforces Team and all Authors for make a great job. Keep that spirit.
Congrass!!!
Congratulations . And, thanks very much . :)
My life started here, wish I could help the site, but I have no means to pay outside my country :'(
darn policy
Congratulations Codeforces, looking forward to the special Thanks-Rounds!!!
Big Congratulations !! May the force be with you!
Congratulations Codeforces...You rock! Keep going!
I hope that codeforces achieve infinite birthdays. Happy birth day codeforces =D
Mobarake :)
Thanks for CodeForces help in my programming and making a great friend with it. I wish a better and better CodeForces every day!!
Love you <3 Happy birthday <3
very nice site, great work codeforces team.
I want to say I love coderfoces very much!