Problems from Waterloo Programming Contest 2006-09-30

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Life Forms	0.07	1156	1505	334	22%	6.9Hard	en
Rectilinear Polygon	0.01	603	116	57	49%	5.6Hard	en
Rinse	0.00	456	147	25	17%	7.7Hard	en
Semi-prime H-numbers	0.00	213	906	325	36%	5.2Medium	en
Tautology	0.00	236	1614	697	43%	3.0Medium	en