Below are past exams with the answer for each question. Have fun!
2016 Contest | 2016 answers |
2015 Contest | 2015 answers |
2014 Contest | 2014 answers |
2013 Contest | 2013 answers |
2011 contest | 2011 answers |
2010 contest | |
2009 contest | |
2008 contest | |
2007 contest | 2007 answers *Question 13 was thrown out |