Problems from Waterloo/Alberta Programming Contest 2004-06-12

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Expanding Rods	0.00	297	1130	237	21%	6.2Hard	en
Grid Speed	0.04	2453	123	14	11%	6.4Hard	en
Marbles On A Tree	0.00	246	3116	1164	37%	2.9Medium	en
Three Powers	0.00	81	4146	1914	46%	2.4Easy	en
Work Reduction	0.00	343	2477	634	26%	5.5Hard	en