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ibra's blog

By ibra, history, 3 years ago, In English,

In the very beginning of this post I would like to thank everyone who contributed to make this contest happen — both onsite and online versions. Thanks a lot to GlebsHP for helping to organize mirror on Codeforces.

Last year there were 4 teams that solved all the problems before contest ended so we tried to make this year's problems a bit harder. I would also like to mention that 2042 teams registered to this contest,676 managed to solve at least one problem and there is 1 teams that solved all the problems before contest ended. Congratulations to everybody!

Congratulations to tourist and VArtem for winning this competition!

Ok, so here is top 10 of Codeforces version of Bubble cup:

11322: tourist, VArtem
2Um_nik
3anta
4m3m3t3m3: izrak, gongy, gendelpiekel
5NanA: twilight, ExfJoe, AcrossTheSky
6Moscow IPT Jinotega: Arterm, ifsmirnov, zemen
7HellKitsune
8MLW: sokian, Merkurev
9uwigmanuke: uwi, snuke, sigma425
10BSUIR POWER: andrew.volchek, netman, teleport

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By ibra, history, 3 years ago, translation, In English,

Hi Codeforces!

We strike back from last year to held Bubble Cup again — programming competition organized by Microsoft Development Center Serbia for last nine years in a row. And this year's final is on this weekend!

Due to last year's successful experience we decided to organize a mirror of this final on Codeforces again. We would like to thank MikeMirzayanov and Codeforces for this great platform and their help. Competition will start at 11-th of September at 11 AM 12:00 (Moscow time). Contest will last for 5 hours and will go by ACM ICPC rules. It will be a competition for teams of 1-3 members. There will be 9 problems.

Contest was mainly prepared by employees of MDCS, knightL and Milanin. Additional thanks to bayleef and vitar for their help in testing.

This contest will be unrated (mostly because rules of this contest and not usual for Codeforces and it is still a mirror of onsite competition).

10 best teams will get T-shirts (each member get one), +10 T-shirts will be distributed randomly to competitors from top 100.

Please pay attention to that contest will start at 12:00 (by Moscow time)

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By ibra, 4 years ago, translation, In English,

In the very beginning of this post I would like to thank everyone who contributed to make this contest happen — both onsite and online versions. For many of us it was practically the first contest we really took part in preparing of — we all loved working on it and hope you liked it too.

I would also like to mention that 2864 teams (about 4k people!) registered to this contest, 1025 actually took part in it, 637 managed to solve at least one problem and there were 4 teams that solved all the problems before contest ended. Congratulations to everybody!

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By ibra, 4 years ago, In English,

Hi Codeforces!

As you already know from previous post, Bubble Cup is a programming competition organized by Microsoft Development Center Serbia for eight year in a row. And the finals is coming!

This year we came up with a wonderful idea to have an online mirror of the finals on Codeforces! We would like to thank MikeMirzayanov and Codeforces team for their work and support in making this happen.

The online competition will be held on 6th of September, Sunday 11-00 AM (Moscow time). The competition will last for five hours and it will run with the standard ACM ICPC rules. This will be a team contest on Codeforces, with teams consisting of up to three people. Amount of problems(7-10) will be anounced later.

Contest was mainly prepared by employees of MDCS (+ special thanks to knightL and Milanin for great help).

This contest will be unrated (mostly because rules of this contest and not usual for Codeforces (and it is first time we organize this kind of mirror).

10 best teams will receive our special T-shirts (each team member) +10 t-shirts will be handed out randomly to other participants of the top 100.

UPD please pay attention to that we updated maximal possible number of people in a team

Post with editorial, results and T-shirts will be posted a bit later

UPD Link to results and editorial post

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By ibra, 6 years ago, In Russian,

Решил на выходных немножко посмотреть насколько легкость задач стыкуется с тем как их решают на acm.timus.ru

вот что из этого получилось:



Так вот синяя линия это какой рейтинг по сложности задач получит человек, если будет решать самые легкие.
Красная — основана на том как люди реально решают, например в самом конце можно видеть Milanin и Egor[USU]

UPD Eсли кому-то интересен код: http://paste.ubuntu.com/5814514/

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By ibra, 6 years ago, In Russian,

прочитал задачу 1181. Разрезание окрашенного многоугольника. Написал решение. Послал и получил:

ID Дата Автор Задача Язык Результат проверки № теста Время работы Выделено памяти
4857807 03:26:33 30 мар 2013 ibra (TNU) 1181. Разрезание окрашенного многоугольника G++ 4.7.2 C++11 Runtime error (access violation) 1 0.015 4 421 КБ

ну и думаю блин опять какая-то хрень, да ещё и на первом тесте. Потом подумал немножко и решил послать на другой более привычный компилятор и был приятно удивлён:

ID Дата Автор Задача Язык Результат проверки № теста Время работы Выделено памяти
4857808 03:26:50 30 мар 2013 ibra (TNU) 1181. Разрезание окрашенного многоугольника Visual C++ 2010 Accepted 0.609 8 356 КБ

странно, но оказывается, что если в студии написать что-то типа dp[-2][i] = 0; то ничего особо страшного не случится, исключение не выпадает. странно всё это.

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By ibra, 6 years ago, In Russian,

Сегодня после контеста на acm.timus.ru, я дорешивал задачу 1932.Тайна идентификатора.

Я послал решение, после чего timus завис на нём и перестал обрабатывать решения других участников. И не работает до сих пор. Не знаю я ли виной этому, но надеюсь что нет. А вообще интересно.

P.S. Надеюсь что скоро сайт возобновить работу.

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By ibra, 7 years ago, In Russian,

Сегодня в 10:00 начнётся зеркало 1-ого контеста из Зимней школы по программированию на сайте e-olimp(этот же контест — Гран-при Украины из opencup-a). Просто хотел напомнить. Вот ссылка: http://www.e-olimp.com/competitions/1575

Всем удачи.

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