Problems from Northwestern Europe Regional Contest (NWERC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Assigning Workstations	3328	824	25%	0.05	667	556	83%	3.2
Better Productivity	328	74	23%	0.00	83	57	69%	6.3
Cleaning Pipes	774	218	28%	0.01	186	142	76%	5.0
Debugging	803	230	29%	0.00	241	179	74%	5.7
Elementary Math	1495	495	33%	0.00	404	315	78%	5.0
Flight Plan Evaluation	110	52	47%	0.00	42	38	90%	4.2
Guessing Camels	656	217	33%	0.04	189	133	70%	6.4
Hole in One	229	46	20%	0.00	45	36	80%	7.6
Identifying Map Tiles	1979	1205	61%	0.00	1143	1093	96%	1.6
Jumbled Communication	1214	789	65%	0.00	694	650	94%	1.9
Kitchen Combinatorics	619	224	36%	0.00	187	148	79%	5.5