2014, San Francisco, CA:
Semifinalist (+Wildcard) in the TopCoder Open
2008, Las Vegas, NV:
Third place in TopCoder Open
2007, Las Vegas, NV:
Third place in TopCoder Open
2006, San Diego, CA:
Seventh place in TopCoder Collegiate Challenge
2006, Las Vegas, NV:
Semifinalist in the TopCoder Open
2005, Santa Clara, CA:
First place in the TopCoder Open
2005, Santa Clara, CA:
Fifth (approximately) place in the TopCoder Collegiate Challenge
2004, Boston, MA:
Sixth (approximately) place in the TopCoder Collegiate Challenge
My rank is frequently changing, my top rank was a third place (not counting
the period of time when it was a second place due to a misfeature of the
rating system).
My TopCoder "trading card" My TopCoder member profile
Helping with organizing a programming competition means
creating problems, writing original solutions, creating tests,
verifying the author's solution (usually done by someone else than author),
answering the contestants' questions during the competition,
providing articles and lectures about solving the problems,
and other general organization. Below I only mention problems which I created.
Obóz Naukowo-Treningowy im. Antoniego Kreczmara, 2006, 2007, 2013:
wrote problems: Dinozaury, Hodowca Drzew,
Rytuał,
Generał
(EN),
Sześciokąty, Kapitał, Zimne Piwnice (find the most interesting maze)
(and some stories for other problems :)