i was surfing through IMO videos in youtube, and found a related video named "MIT integration Bee". I was like awesome, i would love to particpate, so i checked the site out, turn out it really exists. Anyway, its a shame i cant enter as i am not in the states, i feel integral calculation is my stong part in mathematics.
Anyway for those who are interested check out the problem they give for the qualifying round, its been uploaded in a blog, and answers are provided also.
http://phys-geo.blogspot.com/2010/01...ation-bee.html