Online judge
Encyclopedia
An online judge is an online system to test programs in programming contests. They are also used to practice for such contests. Many of these systems organize their own contests.
The system can compile and execute codes, and test them with pre-constructed data. Submitted code may be run with restrictions, including time limit, memory limit, security restriction and so on. The output of the code will be captured by the system, and compared with the standard output. The system will then return the result. When mistakes were found in a standard output, rejudgement using the same method must be made.
Online Judges have ranklists showing users with the biggest number of accepted solutions.
Some of the online judges designed for programming course are:
The system can compile and execute codes, and test them with pre-constructed data. Submitted code may be run with restrictions, including time limit, memory limit, security restriction and so on. The output of the code will be captured by the system, and compared with the standard output. The system will then return the result. When mistakes were found in a standard output, rejudgement using the same method must be made.
Online Judges have ranklists showing users with the biggest number of accepted solutions.
See also
- ACM International Collegiate Programming ContestACM International Collegiate Programming ContestACM International Collegiate Programming Contest is an annual multi-tiered computer programming competition among the universities of the world. The contest is sponsored by IBM. Headquartered at Baylor University, with autonomous regions on six continents, the ICPC is directed by Baylor Professor...
- Sphere Online JudgeSPOJSPOJ is an online judge system with over 100,000 registered users and over 10000 problems. The solution to problems can be submitted in over 40 languages including C, C++, Java, Python, C#, Go, Haskell, Ocaml, and F#...
- TopCoderTopCoderTopCoder is a company which administers contests in computer programming. TopCoder hosts fortnightly online algorithm competitions — known as SRMs or "single round matches" — as well as weekly competitions in design and development. The work in design and development produces useful software...
- Valladolid Problem ArchiveUVa Online JudgeUVa Online Judge is an online automated judge for programming problems hosted by University of Valladolid. Its problem archive has over 2800 problems and user registration is open to all users. There are currently over 100000 registered users. A user may submit a solution in C, C++, Java or...
External links
- Light Online Judge , over 350 problems, C/ C++/ Pascal/ Python/ Java supported. It has its own chat room, forum, online compiler, virtual contests, tool to compare statistics, social bookmarking like adding friends. Any user can arrange contests even with his own problems after solving at least 25 problems. Problems are categorized.
- UVa Online Judge , over 2700 problems, C/ C++/ Pascal/ Java supported.
- .Campion , over 900 problems, C/ C++/ Pascal supported. Only Romanian languageRomanian languageRomanian Romanian Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română ("the Romanian language") or românește (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova...
. - Caribbean Online Judge , C/ C++/ Pascal/ Java/ Python/ Perl/ Ruby/ PHP/ C# supported. English and Spanish.
- Fuzhou University Online Judge, over 800 problems. Popular among the ChineseChinese peopleThe term Chinese people may refer to any of the following:*People with Han Chinese ethnicity ....
. - Harbin Institute of Technology Online Judge, over 1800 problems. Popular among ChineseChinese peopleThe term Chinese people may refer to any of the following:*People with Han Chinese ethnicity ....
people. - Lviv National University Online Judge, over 100 hard ACM-type problems. Only Ukrainian languageUkrainian languageUkrainian is a language of the East Slavic subgroup of the Slavic languages. It is the official state language of Ukraine. Written Ukrainian uses a variant of the Cyrillic alphabet....
. - Moscow Problem Archive with Online Judge, supports C/C++/Java/Free Pascal/Perl/Python/Haskell/Kylix/Lua/OCaml/Ruby/Scheme.
- Peking University Online Judge, over 2800 problems including more than 200 original problems, supports C/C++/Pascal/Java/Fortran.
- Saratov State University Problem Archive with Online Judge, over 300 problems
- Tianjin University Online Judge, over 2000 problems, supports C/C++/Pascal/Java, virtual contests supported.
- Teddy Online Judge, includes problems in Spanish, supports C/C++/Python/Java/Perl.
- USACO|USA Computing Olympiad Training Site, hundreds of problems with complementary tutorials for incrementally expanding competitive programming skills; supports C, C++, Pascal and Java programming languages; targeted to pre-college students.
- Valladolid Problem Archive with Online JudgeUVa Online JudgeUVa Online Judge is an online automated judge for programming problems hosted by University of Valladolid. Its problem archive has over 2800 problems and user registration is open to all users. There are currently over 100000 registered users. A user may submit a solution in C, C++, Java or...
, about 2500 problems, supports C, C++, Pascal and Java programming languages - Zhejiang University Online Judge, over 2400 problems, supports C, C++, Pascal and Java.
- Timus Online Judge, The Timus Online Judge is the largest Russian archive of problems from different programming contests. Accepts solutions in C/C++, Java, Pascal and C#.
- z-training , over 700 problems, C/ C++/ Pascal/ Java/ Python and 8 other languages supported. Provides PHP APIs for building custom online judges.
- Shenyang Institute of Engineering Online Judge, The SIE Online Judge contains over 200 problems for beginners, Chinese and English.
- Open Computer Science Community and Online Judge, Open CS has a permanently growing problemset, that users can also contribute to. It also has a collection of computer science-related articles.
Some of the online judges designed for programming course are:
- Online Judge Plugin for Moodle 2.x, can automatically grade C/C++/Java/Python/Perl/C# and more 40+ programming language assignments.
- HUSTOJ, HUST Online Judge,C/C++/Pascal/Java/Ruby/Bash/Python/PHP/Perl/C# supported, an open source OJ system using GPL2.0 license, which support LiveCD mode and FPS format.
- FPS, Free Problem Set, an open source problemset exchange format based on XML, which providing more than 400 free problems in FPS format.
- SIO2, an open source online judge platform written in PythonPython (programming language)Python is a general-purpose, high-level programming language whose design philosophy emphasizes code readability. Python claims to "[combine] remarkable power with very clear syntax", and its standard library is large and comprehensive...
- Infoarena, over 1100 problems, C/ C++/ Pascal supported, over 20000 users. Only Romanian languageRomanian languageRomanian Romanian Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română ("the Romanian language") or românește (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova...
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