Problems from Northwestern Europe Regional Contest (NWERC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Assigning Workstations	3112	778	25%	0.05	633	529	84%	3.3
Better Productivity	326	73	22%	0.00	81	56	69%	6.4
Cleaning Pipes	764	213	28%	0.01	182	138	76%	5.4
Debugging	799	226	28%	0.00	238	176	74%	5.7
Elementary Math	1418	478	34%	0.00	383	298	78%	4.9
Flight Plan Evaluation	110	52	47%	0.00	42	38	90%	4.2
Guessing Camels	650	216	33%	0.04	186	132	71%	6.5
Hole in One	229	46	20%	0.00	45	36	80%	7.4
Identifying Map Tiles	1917	1161	61%	0.00	1101	1052	96%	1.6
Jumbled Communication	1126	736	65%	0.00	650	609	94%	1.9
Kitchen Combinatorics	608	219	36%	0.00	184	144	78%	5.6