IOI*

*International Olympiad in Informatics 

http://en.wikipedia.org/wiki/International_Olympiad_in_Informatics 

***IOI-2013**

http://www.ioi2013.org/

*IOI 2011 - The 23 rd International Olympiad in Informatics

@ THailand

 http://www.youtube.com/watch?v=rCfzyUUVbmY

 http://en.wikipedia.org/wiki/Indian_Computing_Olympiad

 

best wishes,

sai bbhai.