Problems from Nada Open 2005

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Best Compromise	490	333	68%	0.00	310	290	94%	2.1
Easter Eggs	285	31	11%	0.17	27	13	48%	9.1
Ice Floe Jumping	280	39	14%	0.02	27	18	67%	8.0
Quadratic Residues	298	53	18%	0.00	47	37	79%	5.6
Shovelling Snow	219	23	11%	0.01	47	19	40%	8.0