Six students represented York at the regional competition in Hamilton on Oct 31, 2009. The senior team, consisting of Trevor Brown, Almaz Rakhmetov and Dmitri Shuralyov, solved six of the eight problems and came in sixth out of 113 teams. The junior team, consisting of Edgar Ghahramanyan, Stephen Leong and Albert VanderMeulen, solved two problems. See the [[http://acm.ashland.edu/2009/standings.html|contest scoreboard]]. [[http://www.yorku.ca/yfile/archive/index.asp?Article=13615|Report on 2009 Regional Competition]] from YFile. As we run practice contests, we will archive them here (including problems, solutions, test inputs and outputs). [[http://www.cse.yorku.ca/acm/contest/2009-12-02.html|December 2, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-10-15.html|October 15, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-10-09.html|October 9, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-10-02.html|October 2, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-09-23.html|September 23, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-09-16.html|September 16, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-09-11.html|September 11, 2009]] [[http://www.cse.yorku.ca/acm/contest/2009-03-20.html|March 20, 2009]]