Problems from Northwestern Europe Regional Contest (NWERC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Assigning Workstations	2926	734	25%	0.05	595	496	83%	3.1
Better Productivity	326	73	22%	0.00	81	56	69%	6.4
Cleaning Pipes	745	212	28%	0.01	171	137	80%	4.7
Debugging	788	221	28%	0.00	233	171	73%	5.7
Elementary Math	1383	466	34%	0.00	371	288	78%	5.0
Flight Plan Evaluation	102	47	46%	0.00	41	37	90%	4.2
Guessing Camels	648	215	33%	0.04	185	131	71%	6.3
Hole in One	229	46	20%	0.00	45	36	80%	7.4
Identifying Map Tiles	1843	1115	60%	0.00	1056	1008	95%	1.6
Jumbled Communication	1101	719	65%	0.00	635	595	94%	1.9
Kitchen Combinatorics	587	210	36%	0.00	179	141	79%	5.5