Problems from ICPC 2012 North American Qualifier

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Choosing Numbers	489	97	20%	0.02	112	74	66%	6.3
Hitting the Targets	1839	1037	56%	0.00	1008	931	92%	1.7
Loopy Transit	94	45	48%	0.00	46	39	85%	5.0
Maze Movement	344	167	49%	0.06	141	117	83%	4.5
Multi-Touch Gesture Classification	115	28	24%	0.00	25	20	80%	6.6
Out of Context	28	9	32%	0.07	11	6	55%	7.9
Quite a Problem	2845	1206	42%	0.00	1157	1059	92%	1.9
Ragged Right	3344	1686	50%	0.00	1661	1528	92%	1.9
Stacking Curvy Blocks	314	96	31%	0.00	104	86	83%	3.7
Texas Summers	273	81	30%	0.02	82	64	78%	5.0
Unicycle Counting	168	38	23%	0.00	50	33	66%	7.0