Problems from Northwestern Europe Regional Contest (NWERC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Assigning Workstations	3474	870	25%	0.05	704	585	83%	3.5
Better Productivity	346	77	22%	0.00	87	60	69%	6.3
Cleaning Pipes	784	220	28%	0.01	187	144	77%	4.9
Debugging	826	235	28%	0.00	252	184	73%	5.8
Elementary Math	1558	515	33%	0.00	427	331	78%	5.1
Flight Plan Evaluation	115	54	47%	0.00	44	40	91%	4.1
Guessing Camels	725	243	34%	0.04	215	148	69%	6.4
Hole in One	231	47	20%	0.00	46	37	80%	7.5
Identifying Map Tiles	2038	1242	61%	0.00	1183	1129	95%	1.7
Jumbled Communication	1236	808	65%	0.00	713	668	94%	2.0
Kitchen Combinatorics	662	234	35%	0.00	203	160	79%	5.4