Hello guys! I recently learned lazy updates for segment tree and I thought I may help someone else learn it as well. I wrote tutorial about it here. Let me know if you have any suggestions or comments. Hope it helps!

Hello everybody! I just posted a new tutorial about Segment Trees in my blog. You can check it out here. Hope it helps somebody!

Hello guys, I decided to start blogging about algorithms, data structures, and programming contests while tinkering around with wordpress! You can check it out here

String matching is a very interesting field, yet it's difficult to find some good documentation. In this link I've found a great catalog of algorithms with its corresponding implementations. Check it out: http://www-igm.univ-mlv.fr//string/node1.html

The TopCoder Open 2013 starts this saturday february 23, sponsored by Google.

For more info visit http://community.topcoder.com/tco13/algorithm/

To register visit http://community.topcoder.com/tco13/

See you on the arena. Good luck!

EDIT: The registration is now closed, as it will take only the first 2000 contestants registered for each qualification round.

EDIT: The times are now available to everyone in each timezone.

Round 1A: http://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO13+Algorithm+Round+1A&iso=20130223T12&p1=98

Round 1B: http://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO13+Algorithm+Round+1B&iso=20130302T12&p1=98

Round 1C: http://www.timeanddate.com/worldclock/fixedtime.html?msg=TCO13+Algorithm+Round+1C&iso=20130309T12&p1=98

For more info about the dates and times of the event, visit http://community.topcoder.com/tco13/algorithm/algorithm-schedule/

Hello. Can anybody please provide me a clean tutorial of how to implement a Suffix Array in Java? Thanks