Problems from Waterloo Programming Contest 2009-06-13

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Convex Hull	0.01	371	299	201	67%	6.8Hard	en
Fire!	0.01	763	860	652	76%	5.3Medium	en
Nice Prefixes	0.02	1426	33	16	48%	8.4Hard	en
Slalom 2	0.10	575	162	121	75%	5.4Medium	en
Tic Tac Toe	0.01	1174	230	73	32%	8.6Hard	en