Problems from ICPC 2012 North American Qualifier

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Choosing Numbers	515	100	19%	0.02	115	77	67%	6.2
Hitting the Targets	2009	1130	56%	0.00	1099	1017	93%	1.7
Loopy Transit	99	48	48%	0.00	50	42	84%	5.0
Maze Movement	371	186	50%	0.06	157	132	84%	4.3
Multi-Touch Gesture Classification	115	28	24%	0.00	25	20	80%	6.5
Out of Context	29	9	31%	0.07	11	6	55%	7.9
Quite a Problem	3376	1408	42%	0.00	1320	1201	91%	2.0
Ragged Right	3727	1864	50%	0.00	1853	1701	92%	1.8
Stacking Curvy Blocks	331	99	30%	0.00	108	89	82%	4.1
Texas Summers	410	138	34%	0.02	121	96	79%	4.1
Unicycle Counting	175	40	23%	0.00	54	35	65%	8.1