Bitwise is an annual, time-constrained, algorithm - intensive online programming contest organised by the Computer Science and Engineering Society of IIT-Kharagpur , one of the premier engineering colleges in India.
Registration is free and open to all. Team size is limited to a maximum of two and contestants need to solve a set of problems posted on the site using C or C++.
The solutions are evaluated, not only on the basis of correctness, but also on their execution time and space complexities.
Bitwise 2013 had over 3250 teams participated from a total of 1560 organizations, universities and institutes spread over 80 countries.