Rosetta Code

Rosetta Code is a programming chrestomathy site. The idea is to present solutions to the same task in as many different languages as possible, to demonstrate how languages are similar and different, and to aid a person with a grounding in one approach to a problem in learning another. Rosetta Code currently has 1,261 tasks, 399 draft tasks, and is aware of 926 languages, though we do not (and cannot) have solutions to every task in every language.

Places to start

Recently-Updated Tasks

Boustrophedon transform
Blum integer
Jacobi symbol
Yin and yang
Hough transform
Host introspection
Horner's rule for polynomial evaluation
Horizontal sundial calculations
Honaker primes
Home primes
Holidays related to Easter
Hofstadter-Conway $10,000 sequence
Hofstadter Q sequence

Ways to Contribute

Village Pump/Suggest a programming task
Village Pump/Suggest a language
Add a Language
Add a Task
Adding a new programming example
Examples needing attention
Unimplemented tasks by language