Problems from 2016 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A New Alphabet	13135	5940	45%	0.00	5525	5112	93%	1.6
Arcade!	1288	239	19%	0.01	235	165	70%	6.1
Big Truck	5126	1739	34%	0.00	1466	1218	83%	3.2
Brackets	3181	432	14%	0.00	702	345	49%	6.9
Dots and Boxes	249	86	35%	0.00	111	69	62%	6.8
Free Desserts	276	43	16%	0.01	91	31	34%	7.6
Inverse Factorial	8347	1800	22%	0.00	2213	1221	55%	5.4
Nine Packs	2372	756	32%	0.00	792	602	76%	4.5
Primonimo	337	115	34%	0.00	121	92	76%	6.9
Quick Estimates	10609	5984	56%	0.00	5580	5314	95%	1.4
Robotopia	5878	881	15%	0.00	1163	669	58%	5.5
Unusual Darts	919	294	32%	0.01	244	184	75%	5.2