Bitwise IIT Kharagpur

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Bitwise is an online programming contest hosted by the Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur.[1] It challenges the world's best programmers to solve its selection of tough algorithm intensive challenges in the span of 12 hours, and is notorious for its last minute winning entries.[2]

The next iteration, Bitwise 2013, is scheduled to be held on February 10th 2013.[3] Prizes worth USD 10,000 are up for grabs. Registrations will start soon.

Facebook was the Title Sponsor for Bitwise 2012, and Epic Systems, its Associate Sponsor, with Interviewstreet slated to be the Systems Partner. The 2012 edition had prize money over USD 3800 in the offing.

Bitwise[4] was started in the year 2001 by the senior undergraduate students of Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur. The contest provides programmers across the globe a platform to compete, testing their ability to develop efficient algorithms to problems within a given time constraint. Over the last eleven years, the contest has grown in popularity and prize money, attracting the world's top programmers. Bitwise 2003 had a participation of over 900 teams, which rose to over 5000 teams (3500 playing on the event day) from 80 different countries in 2011.[5]


Registration is free and open to all. Team size is limited to a maximum of three, and solutions have traditionally been expected to be provided in C (programming language) or C++. The solutions are evaluated not only on the basis of correctness, but also on their time and space complexities. Previous year's challenges are available for download and practice on the Bitwise[6] website.


Year Winner College/Institution
2003 Arun Kishore & Pham Min Tri NT United, Singapore
2004 Amey Karkare IIT Bombay
2005 Robin Nittka & Adrian Kuegel University of Ulm
2006 Team TwoDashHeadedSpaceMonkey University of KTH
2007 Team TwoDashHeadedSpaceMonkey University of KTH
2008 Robin Nittka & Christoph Schwirzer University of Ulm
2009 Team ACRush Tsinghua University
2010 Team Eryx Warsaw University
2011 Team Gawry University of Wrocław
2012 Team Luminar Shanghai Jiao Tong University
2013 Team Mithril Shanghai Jiao Tong University


Enigma[7] is an online quiz which was first introduced as a part of Bitwise 2007. It serves as a curtain raiser event which takes it participants on a journey discovering the terms, concepts and luminaries in the field of Computer Science. It is traditionally conducted a few days prior to Bitwise. This year's event will be conducted on February 3rd 2013.


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