Problems from Waterloo Programming Contest 2006-09-30

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Life Forms	0.07	1156	1852	404	22%	7.1Hard	en
Rectilinear Polygon	0.01	603	196	70	36%	6.3Hard	en
Rinse	0.00	456	291	46	16%	8.6Hard	en
Semi-prime H-numbers	0.00	213	1357	457	34%	4.8Medium	en
Tautology	0.00	190	2414	1044	43%	2.5Easy	en