Problems from Northwestern Europe Regional Contest (NWERC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Assigning Workstations	1031	324	31%	0.05	332	253	76%	4.9
Better Productivity	326	73	22%	0.00	81	56	69%	6.4
Cleaning Pipes	721	209	29%	0.01	165	134	81%	4.4
Debugging	758	210	28%	0.00	218	161	74%	5.8
Elementary Math	1331	444	33%	0.00	353	274	78%	4.9
Flight Plan Evaluation	102	47	46%	0.00	41	37	90%	4.2
Guessing Camels	623	208	33%	0.04	173	126	73%	6.4
Hole in One	221	44	20%	0.00	44	35	80%	7.5
Identifying Map Tiles	1811	1087	60%	0.00	1027	980	95%	1.7
Jumbled Communication	1000	678	68%	0.00	597	562	94%	1.9
Kitchen Combinatorics	547	191	35%	0.00	167	130	78%	5.6