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

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Expanding Rods	0.00	297	195	146	75%	5.9Hard	en
Grid Speed	0.04	2453	19	9	47%	6.3Hard	en
Marbles On A Tree	0.00	246	829	737	89%	3.1Medium	en
Three Powers	0.00	81	1598	1454	91%	2.3Easy	en
Work Reduction	0.00	343	529	388	73%	5.2Medium	en