Problems from Waterloo Programming Contest 2006-09-30

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Life Forms	0.07	1348	1742	383	22%	7.1Hard	en
Rectilinear Polygon	0.01	603	169	66	39%	7.1Hard	en
Rinse	0.00	572	246	40	16%	7.9Hard	en
Semi-prime H-numbers	0.00	213	1141	384	34%	5.1Medium	en
Tautology	0.00	190	2048	883	43%	2.8Medium	en