CodeChef on Campus - December 2009 |
Hello CodeChef Campers,
Welcome to the 3rd edition of CodeChef on Campus.
In this issue we'll cover:
* Your College Wiki Space
* Topic of the month
* "Comment to Win" on the CodeChef Facebook fan page
* Campus Activities
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Your College Wiki Space
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Our wiki page now has all of our current campus chapters listed in alphabetical order here. We'd like to ask you to add the relevant details for your chapter on your campus' link. Please see the sample page that we've created as reference.
Feel free to add whatever links, events, resources and additional information you think is relevant to your college's wiki space. It would be a good idea to assign two or three moderators to your wiki space to help keep the page well organized.
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Topic of the month - Bitwise Operations
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Overview
Most personal computers process bits and bytes. Any integer or floating point number or even large strings are stored internally as a sequence of bits. Operations that directly modify individual bits are known as bit-wise operators. Most high level languages support bit level operations while processors support these natively. Because of the native processor level support for these operations, they are very fast and have much less overhead compared to others. Also, any binary digit can have a value of either 0 or 1. This can be used effectively in generating all possible subsets and in other advanced data structures such as Binary Indexed Trees. We will see a few tricks related to Bitwise Operations in the following tutorial by 'pr0ton'. The tutorial also contains a number of problems that can be solved using the concepts mentioned in the tutorial.
Practice Problems
http://www.spoj.pl/problems/BABY
http://www.spoj.pl/problems/TRSTAGE
http://www.spoj.pl/problems/MMINPAID
http://www.spoj.pl/problems/M3TILE
http://www.spoj.pl/problems/HELPBOB
http://www.spoj.pl/problems/GNY07H
http://www.spoj.pl/problems/HIST2
Additional Activity
Hold a session on the topic of the month. You can ask students to take pictures of the session. Ask students to register for the session using the wiki. It would be awesome if you could send us links to the photographs and videos once the session is completed.
Let us know if last month's video tutorial was useful and if there are any additional topics we should cover in the coming months.
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The CodeChef Facebook "Comment to Win" Contest
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Our Chef has decided to play Santa Claus this month, which is why we're having the "Comment to Win" contest all this week on Facebook.
There's some really cool stuff to be won including our grand prize - an iPod Touch! Find out more on FaceBook and help us spread the word. :)
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Campus Activities
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We know that most of you have been caught up with exams and hence not too many campus competitions were run this month.
Nonetheless the following contests were held:
College: MPSTME NMIMS , Mumbai
Campus Representative: Gaurav Munjal
Contests: http://www.codechef.com/MP5TM3
College: Vidya Academy
Contest: http://www.codechef.com/VASTK
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We hope you found this newsletter useful. Do let us know your feedback and suggestions.
If you have mentioned us on your blog or website send us links and we will add it in our next letter.
Wishing you all Merry Christmas and a very happy New Year!
Cheers!
Anusha Pinto
Community Evangelist
Ph: 022 30797616
http://codechef.com
Campus initiatives: http://codechef.com/campus
Connect with us:
http://blog.codechef.com
http://twitter.com/codechef
http://facebook.com/codechef
