This post is no longer relevant; it has become significantly outdated. You should read the post at https://codeforces.me/blog/entry/121114.

Later you'll be introduced to the rules of the Codeforces contests, which differ from those of ACM-ICPC, TopCoder, GCJ, and I hope they'll bring some difference to the world of programming competitions. Most of the official competitions will be carried out according to these rules, though there will be more traditional contests. For example, Codeforces Beta Round #1 will be carried out according to the familiar ACM-ICPC rules. For some time testing will be based on Windows, but things might change in future, fortunately, the system supports testing on different platforms, even within one contest.

At the present time the system is configured to support the following programming languages (the compilation and/or the launching line is shown for each language):

1. GNU C++ 4
   g++.exe -static -DONLINE_JUDGE -lm -s -x c++ -Wl,--stack=268435456 -O2 -o {filename}.exe {file}
   
   
2. GNU C++11 4
   g++.exe -static -DONLINE_JUDGE -lm -s -x c++ -Wl,--stack=268435456 -O2 -std=c++11 -D__USE_MINGW_ANSI_STDIO=0 -o {filename}.exe {file}
   
   
3. GNU C 4
   gcc.exe -static -fno-optimize-sibling-calls -fno-strict-aliasing -DONLINE_JUDGE -fno-asm -lm -s -Wl,--stack=268435456 -O2 -o {filename}.exe {file}
   
   
4. MS VS C++
   cl /W4 /F268435456 /EHsc /O2 /DONLINE_JUDGE {file}
   
   
5. Free Pascal 2
   -n -O2 -Xs -Sgic -viwn -dONLINE_JUDGE -Cs67107839 -Mdelphi -XS {file} -o{filename}.exe
   
   
6. Delphi 7
   dcc32 -Q -$M1048576,67107839 -DONLINE_JUDGE -cc {file}
   
   
7. C# Mono 2
   dmcs -define:ONLINE_JUDGE -o+ -out:{filename}.exe {file}
   
   
8. C# .NET
   csc.exe /o+ /d:ONLINE_JUDGE /r:System.Numerics.dll /out:{filename}.exe {file}
   
   
9. Java 6, 7
   javac -cp ".;*" {file}
   и
   java.exe -Xmx512M -Xss64M -DONLINE_JUDGE=true -Duser.language=en -Duser.region=US -Duser.variant=US -jar %s
   
   
10. Ruby
    ruby.exe %s
    
    
11. Python 2, Python 3
    python.exe %s
    
    
12. PHP 5
    php.exe -n -d ONLINE_JUDGE=true -d display_errors=Off -d error_reporting=0 %s
    
    
13. Haskell GHC 7
    ghc --make -O %s
    
    
14. D
    dmd -L/STACK:268435456 -version=ONLINE_JUDGE -O -release -inline -noboundscheck {file}
    
    
15. OCaml
    ocamlopt nums.cmxa str.cmxa -pp camlp4o -unsafe -o {filename}.exe-ocaml {file}
    
    
16. Scala
    As Java
    
    
17. JavaScript V8
    d8 {file}
    
    

It is not guaranteed that all the problems will have solutions in all the given languages (it's especially about the scripting ones). Probably, I'll later introduce equalizing coefficients for the working time for some languages. A "plus" next to the version name means that the testing system can use older versions. If you have suggestions about the possible ways to change the compilation or the launching line, write about them in your commentaries.

It should be mentioned that apart from standard verdicts, you can get "Denial of judgement", which usually means that your solution can't be launched, or it has unexpectedly failed. For example, is the Delphi array is too big, the compiler compiles the code, but the result will be the incorrect win32 exe-file. Solutions with the verdicts like "Compilation failed", "Denial of judgement", "Judgement failed" will be ignored while summing the results.

Moreover, pay attention, please, that the problems will be given in English as well as in Russian.

That's it, see you at Codeforces Beta Round#1.

UPD: GCC compiler has been added.

UPD 2: Added Haskell and F#.

UPD 3.2: Actual compiler versions are

• Mono C# compiler version 3.2.3
• DMD32 D Compiler v2.064.2
• Delphi 7 [Borland Delphi Version 15.0]
• Free Pascal Compiler version 2.6.2
• MinGW g++.exe (GCC) 4.9.2
• Haskell Glorious Glasgow, version 7.6.1
• Java 6 javac 1.6.0_45
• Java 7 javac 1.7.0_72
• Java 8 javac 1.8.0_25
• Ocaml ocamlopt 4.00.1
• Perl v5.12.2
• PHP 5.3.8
• Python 2.7.8
• Python 3.4.1
• Ruby 2.0.0p353
• Scala compiler version 2.11.1
• MS VS C++ 2010
• JavaScript V8 3.23.0

I think I won't find any strength to describe the finishing day. I will only tell you that it was quite tiring - before the trial contest the guys had to wait for about an hour. Then there was a contest almost as long as the real one.

The third day was marked by rises and falls of Harbin in our eyes. Everything started with the opening ceremony - it was badly organized, protracted and boring. Right before the opening ceremony the audience went to the assembly hall of the Harbin Engineering University, but the participants were less privileged and had to suffer. We were all gathered in a long basement room, we had to form a line according to predetermined numbers, and wait. As you know, 103 teams take part in the finals, so, about 450 people (coaches and volunteers included) packed into that basement. It was stuffy and crowded there. The Russian teams demonstrated their inherent quick-wittedness, they decided not to stand in the crowd, and moved closer to the entrance, it was cooler and there was more room there.

Finally, to solemn music (be careful, phonogram!) the teams one by one climbed the stage, took pictures and went down to join the audience. As after that according to the program some outdoor activities were planned, many participants had prepared sensibly beforehand, they had put on the presented warm trousers, sweaters, etc. With such a "formal" look they got to the opening ceremony and the shoot. My standing ovation.

The second day we spent sightseeing - we went to the excursions organized by the host country, some places we visited on our own.

In the morning we had some free time, and we went to the local Arbat (or Kirov Avenue, as you wish). Actually, when we walked not far away from the hotel, we found out that we vaguely knew how to get back. But still we didn't want to go back, that's why we went on moving away, guided by little information we had. It was really cold - but we were well-prepared. I put on a down-filled coat, that we'd got on the first day, over my proper one, foe example. Vova put on the presented trousers over his own jeans, and seemed happy. The parts that got cold were our faces.

On our way to that avenue we asked for the directions many times. The problem was that we didn't remember its name. 80% of passers-by said they didn't speak English, 20% said they did, but it was the only thing they could say in English. Finally, using the international language of gestures, we got the direction and found the avenue. Personally I was disappointed, there was nothing to look at there. Of course, it was interesting to walk past old buildings, but we had no desire to "Russian goods" shops. They sold home-made vodka, chocolate called "Russian fir (pets)" (they meant "pelts"), and other goods of doubtful quality.

The flight went well, without any problems. I always regret that I can't sleep on the plane, and I envy my fellow passengers the ability to sleep their fill during the flight. I managed to fall asleep at the beginning of the first flight only, don't remember how we took off, but didn't miss the meal. After that I didn't sleep at all. The guys seemed to have rested a bit, though, of course, the rest was far from normal. I tried to derive the meaning of some hieroglyphs by comparing the city names in English and in Chinese, but even this didn't help me fall asleep.

We flew 7 hours to Beijing, and 2 more hours from Beijing to Harbin. At Sheremetyevo Airport we met several other Russian teams. The teams from Samara, Izhevsk, and, it seems, Ural were on the same plane. And some other teams. Moreover, we flew with Andrey Styskin, who works for Yandex, and will take part in the conference in the context of the contest. Separate teams could be clearly distinguished on the plane: 3 young people, each with a laptop, or a netbook. However there were exceptions.

January 30, 2010 the delegation of the Saratov State University is leaving for the World Finals of the International Collegiate Programming Contest. This year it's held in Harbin (hi, China), and that means that apart from an interesting contest, we have cold weather, ice statues, fried rice with prawns, and as I hope, Beijing Duck.

Our University will take part in the Contest for the 7th time, and for the team Saratov SU#1 this will be the 2nd Finals. It seems to be high time to introduce myself. I'm Mike Mirzayanov, and I'm this team's coach (and also all other teams from my university). In reality I'm the director of Programming Competitions Training Center, but in this case it doesn't matter. I became a part of this so-called olympic movement quite long ago, but since that time I've managed to take part in the finals of the ICPC, and in the finals of Google Code Jam, and onsite competitions by TopCoder (TCO and TCCC both). In brief, I do know what computer programming competitions are, but we won't speak about me.

We will speak about our team Saratov SU#1 and their participation in the coming World Finals. I plan to write a series of articles about our trip to China. No one knows, on whom Lady Luck will smile, and whether we'll return triumphant or defeated, but I hope my account will seem interesting to someone. Any questions? Ask them in your commentaries, and I'll answer them with pleasure.

The World Finals of the 33rd International Collegiate Programming Contest for was held in the capital of Sweden, Stockholm. The contest was held in Europe for the third time: in 1999 it was held in Eindhoven (the Netherlands), in 2004 - in Prague (the Czech Republic). It was the first time the key role in the competition had been played by the University: it was held in the library of the Royal Technological University. One hundred best teams of the world took part in the final, while the preliminary rounds saw 7109 teams from 1838 Universities and 88 countries competing. It was the sixth time the Saratov State University had took part in ACM-ICPC World Finals.

The participants were placed in two hotels in the historic centre of Stockholm, Gamla Stan district. Our team was placed in the Grand Hotel Stockholm, the city's oldest hotel, built in 1874. The breathtaking view on the Old City and the Royal Palace made this hotel the favourite place for many film stars, politicians and other celebrities. The Grand Hotel is the only hotel in Sweden with the prestigious status The Leading Hotels of the World.