Problems from 2016 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A New Alphabet	8969	4080	45%	0.00	3821	3536	93%	1.7
Arcade!	1151	207	18%	0.01	199	142	71%	6.0
Big Truck	4312	1448	34%	0.00	1243	1028	83%	2.9
Brackets	2842	368	13%	0.00	618	289	47%	7.0
Dots and Boxes	194	61	31%	0.00	87	50	57%	8.4
Free Desserts	216	33	15%	0.01	72	22	31%	8.2
Inverse Factorial	6092	1202	20%	0.00	1699	880	52%	5.7
Nine Packs	1614	523	32%	0.00	575	427	74%	4.7
Primonimo	284	97	34%	0.00	97	76	78%	5.5
Quick Estimates	6607	3713	56%	0.00	3529	3337	95%	1.5
Robotopia	4756	671	14%	0.00	974	532	55%	6.1
Unusual Darts	638	216	34%	0.01	188	137	73%	5.4