Kattis

Kattis

Kattis is an online platform focused on programming competitions and education. It provides problem sets that allow users to practice coding challenges and contests that simulate programming competition environments.
Education & Reference Programming Education
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coding programming practice education challenges contests
Kattis alternatives ➤

Kattis: Programming Competitions & Education Platform

Online platform offering problem sets for coding challenge practice and simulations of programming competitions

What is Kattis?

Kattis is an online platform and judge system created in 2008 by KTH Royal Institute of Technology in Stockholm for hosting programming competitions and education. It allows users to practice solving coding challenges, participate in contests to test their skills, and organize competitions for groups or classes.

The platform provides an extensive set of programming problems across multiple domains and difficulty levels. Problems are categorized by topics like data structures, math, string processing, and graphs to help users strengthen particular areas. Users submit solutions to problems in over 40 programming languages that are automatically judged for correctness by Kattis.

Kattis also facilitates hosting programming contests like those performed at the collegiate level. Its ICPC-style competitions simulate International Collegiate Programming Contest rules by enforcing time limits, submission rules, and rankings. This allows classes, clubs, and groups to organize friendly coding competitions.

Through gamification and peer encouragement, Kattis aims to provide a judge system that makes practicing programming fun and engaging. The platform tracks user performance and ranks users globally and regionally to motivate improvement. An active discussion forum allows users to exchange ideas on solving problems.

Kattis Features

Features

  1. Online judge system for programming competitions
  2. Large problem archive with categorized difficulty levels
  3. Supports over 40 programming languages
  4. Real-time contest simulation
  5. Team collaboration features
  6. Automated grading and feedback
  7. Leaderboards and statistics

Pricing

  • Free
  • Open Source

Pros

Great for practicing coding interviews and competitions

Detailed problem explanations and editorials

Active user community and discussion forums

Allows collaboration and team contests

Completely free to use with no limits

Cons

Limited language support compared to other judges

No native mobile app, web-only

Less problems than some other judge sites

User interface is very basic and dated

Official Links

Official Website
https://www.kattis.com

The Best Kattis Alternatives

Top Education & Reference and Programming Education and other similar apps like Kattis

Here are some alternatives to Kattis:

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