Problems from Waterloo Programming Contest 2009-06-13

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Convex Hull	0.01	371	1610	359	22%	6.9Hard	en
Fire!	0.01	763	4262	991	23%	5.3Medium	en
Nice Prefixes	0.02	1426	115	20	17%	8.2Hard	en
Slalom 2	0.10	575	1020	184	18%	5.6Hard	en
Tic Tac Toe	0.01	1174	1830	144	8%	8.7Hard	en