Problems from Waterloo Programming Contest 2006-09-30

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Life Forms	0.07	1348	1741	383	22%	7.1Hard	en
Rectilinear Polygon	0.01	603	168	65	39%	7.2Hard	en
Rinse	0.00	572	241	39	16%	7.7Hard	en
Semi-prime H-numbers	0.00	213	1140	383	34%	5.1Medium	en
Tautology	0.00	198	2016	873	43%	2.8Medium	en