Problems from Waterloo Programming Contest 2006-09-30

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Life Forms	0.07	1156	1601	350	22%	7.0Hard	en
Rectilinear Polygon	0.01	603	129	62	48%	5.3Medium	en
Rinse	0.00	456	214	36	17%	8.0Hard	en
Semi-prime H-numbers	0.00	213	959	339	35%	5.1Medium	en
Tautology	0.00	236	1776	766	43%	3.0Medium	en