Problems from Nada Open 2005

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Best Compromise	635	423	67%	0.00	400	371	93%	2.2
Easter Eggs	326	32	10%	0.17	34	14	41%	9.2
Ice Floe Jumping	308	40	13%	0.02	28	19	68%	8.1
Quadratic Residues	345	67	19%	0.00	57	47	82%	5.0
Shovelling Snow	224	26	12%	0.01	51	22	43%	8.3