Tomorrow is Eid al-Fitr

Happy Eid to all muslims in codeforces:

Привет всем.

Вчера состоялась Codeforces Round #345 (Div. 1) но посылки участников не открылась до сих пор.

В чём проблема ?

Заранее спасибо.

В ближайщее 4 недели не будет рейтинговые контесты для участников с DIV 1 ?

Заранее спасибо.

Опубликована информация о проведении заключительного этапа и предварительная программа мероприятий. Если вы набрали достаточное для прохода количество баллов, то удостоверьтесь, что вы присутствуете в списке приглашённых.

Наконец-то после стольких дней вышли результаты первого отборочного интернет-тура ИОИП — link:

По результатам первого отборочного тура на очный тур были приглашены, участники, набравшие хотя бы 300 баллов. Те, кому это не удалось, могут принять участие во втором отборочном туре.

Удачи всем кто будет участвовать во втором отборочном интернет-туре.

Results for Mathematics:

Results for Physics:

Results for Computer Science:

Raiting of teams:

Hello fans competition for sports programming codeforces.

I'm in the 11th grade and this year will finish school and I would like to study at a US university, but I do not have the certificate "TOEFL".

I would like to enroll in one of the universities in the US without a certificate "TOEFL" and I would like to know whether vases enroll in public universities in the United States without any certificate "TOEFL", if I have won prizes in international competitions.

If you know such universities that accept students without a certificate "TOEFL" in the comments please write to the site of the university.

Thank you in advance for your help my friends.

2.11.2015 Начался заочный этап X Открытой олимпиады школьников по программированию, который будет продолжаться до 18 января 2016 года.

4 ноября 2015. Жюри приняло решение добавить в первый пакет задачу E. Рекомендуем всем участникам обратить на неё внимание — многим она может показаться проще первых четырёх задач. В задаче D была изменена система оценки и набор тестов, у каждого участника в ближайшее время будет перетестирована последняя посылка, в результате чего баллы, полученные по этой задаче, могут измениться. Условия задач обновлены.

Опубликованы условия первых пяти задач.

Регистрация на олимпиаду.

Текущие результаты.

Более подробная информация на сайте.

Gennady it is! Reigning champion Gennady Korotkevich has done it again and is the #‎CodeJam2015 winner! Stay tuned for more post-game analysis.

Link results — https://code.google.com/codejam/contest/5224486/scoreboard

Tomorrow is the second Contest day. It was held in (Contest hall, Al-Farabi Library).

The contest will begin at 09:00 and end 14:00.

On my own behalf and also on behalf of all participants (Codeforces) good luck mainly introduce to the participants that Russia as well as all the participants from other countries. Good luck (Michael Ipatov) and (Mikhail Putilin) that they have passed the second day of the Olympic with the result srl.

Link for results http://scoreboard.ioinformatics.org/Ranking.html and http://ioi.snarknews.info/index.cgi?data=2015/day2pre&class=ioi2015&year=2015.

Link about problems http://ioi2015.kz/content/view/1/271 .

After contest i propose to discuss the problem here.

Good luck to all participants of the IOI 2015 in tomorrow's contest in Second round.

Today was held the first round of the International Olympiad in Informatics.

The first problem was solved by all the participant with Russia (Mikhail Ipatov).

On behalf of all the participants (codeforces) to congratulate him srl result on the first day of the Olympics.

And as we congratulate two other members who also passed the first day of the Olympic Games with the result of these participants srl (Yuhao Du -China) and participant with Korea (Jeehak Yoon).

I propose to discuss the problem here.

Tomorrow is the first Contest day. It was held in (Contest hall, Al-Farabi Library).

The contest will begin at 09:00 and end 14:00.

Good luck to all participants of the IOI 2015 in tomorrow's contest.

Eid Mubarak to everyone my Muslim and nonMuslim friends!!!

Alternative terms.

Eid al-Fitr goes by various alternative terms in English, including:

Fastbreaking Eid

Sweet Festival

Ramadan feast

Feast of Fasting

Bajram

Lesser Eid

Smaller Eid

Small Eid

Minor feast

Eid al-Saghir

Sugar Feast

Practices by country.

Saudi Arabia Eid al-Fitr is celebrated with great pomp in Saudi Arabia. Saudis decorate their homes and prepare sumptuous meals for family and friends.

Eid festivities in Saudi Arabia may vary culturally depending on the region, but one common thread in all celebrations is of generosity and hospitality. First, it is common Saudi tradition for families to gather at the patriarchal home after the Eid prayers. Before the special Eid meal is served, young children will line up in front of each adult family member, who dispense money as gifts to the children. Family members will also typically have a time where they will pass out gift bags to the children. These bags are often beautifully decorated and contain candies and toys.

Many shopkeepers will show their generosity at Eid providing free Eid gifts with each purchase. For example, during Eid, many of the chocolate shops will give each customer who buys a selection of candies a free crystal candy dish with their purchase.

In the spirit of Eid, many Saudis go out of their way to show their kindness and generosity. It is common for even complete strangers to greet one another at random, even by occupants of vehicles waiting at stop lights. Sometimes even toys and gifts will be given to children by complete strangers.

It is also traditional in some areas for Saudi men to go and buy large quantities of rice and other staples and then leave them anonymously at the doors of those who are less fortunate. Also, in some areas in the middle of Saudi Arabia, such as Al Qassim, it's a common tradition that during Eid morning and after the Eid prayer people will put large rugs on one of streets of their neighborhood and each household will prepare a large meal where these meals will be shared by all neighbours, it's also a common practice that people will swap places to try more than one kind of meal.

In the major cities in Saudi Arabia, every night there are huge fireworks shows.

Turkey

Terminology

In Turkey, nation-wide celebrated holidays are referred to as bayram, and Eid al-Fitr is referred to as both Şeker Bayramı ("Bayram of Sweets") and Ramazan Bayramı ("Ramadan Bayram").

In Codeforces contest(Rockethon 2015 ) there were x6565 registrants, which is new max number of registrants and min number of registrants in Codeforces Alpha Round #20 (Codeforces format) there were x60.

And the site didn't go down during the contest, well done Codeforces team. :)

Доброго времени суток! ****

Не так давно начал прорешивать задачи на жадные алгоритмы и ДП. Очень часто затрудняюсь доказывать оптимальность своих решений.

Собственно вопрос: Существует ли общая схема построения доказательства жадных алгоритмов и решений ДП?

Заранее спасибо.

Привет, CodeForces!

Я думаю многие из вас, в частности были участники APIO, затрудняются найти хорошие, понятные разборы задач APIO, поэтому я решил создать блог где мы будем публиковать задачу, решать её и переходить к следующей. Заранее спасибо.

Позвольте мне начать с задачой С (Palembang Bridges) — [problem:http://apio2015.org/APIO2015Problemset.pdf]

In English.

I'm pretty sure that this nickname [user:profile/M-i-s-t-a-k-e] not from Hanoi, Vietnam, and he has a real nickname.

And I am sure that you will not likely have an entire concept of why he is a bad word to say to Peter Mitreevich.

Let's ask him his real nickname and why he bad words to say to Peter Mitreevich.

Thanks in advance.

По русский.

Я точно уверен что этот ник [user:profile/M-i-s-t-a-k-e] не из Hanoi, Vietnam, и у него есть настоящий ник.

И я уверен что вы все понятие не имейти почему он плохие слова говорить Петру Митреевичу.

Давайте вместе у него спросим его настоящий ник и почему он плохие слова говорить Петру Митреевичу.

Заранее спасибо.