Problems from Northwestern Europe Contest (NWERC) 2009

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
An Industrial Spy	1663	881	53%	0.02	665	572	86%	3.2
Common Subexpression Elimination	266	86	32%	0.14	51	44	86%	5.9
Divisible Subsequences	1131	513	45%	0.01	409	332	81%	4.3
Fractal	252	81	32%	0.00	87	69	79%	4.4
Mountain Road	95	32	34%	0.08	42	29	69%	7.7
Moving to Nuremberg	265	62	23%	0.08	74	52	70%	7.5
Room Assignments	129	39	30%	0.15	44	36	82%	6.6
Settlers of Catan	463	218	47%	0.00	221	187	85%	4.2
Simple Polygon	1268	317	25%	0.01	215	176	82%	5.5
Wormholes	328	67	20%	0.00	59	32	54%	8.4