Problems from ICPC 2012 North American Qualifier

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Choosing Numbers	457	92	20%	0.02	103	69	67%	6.3
Hitting the Targets	1768	1007	57%	0.00	981	908	93%	1.7
Loopy Transit	85	39	46%	0.00	44	37	84%	5.4
Maze Movement	310	156	50%	0.06	125	107	86%	3.7
Multi-Touch Gesture Classification	115	28	24%	0.00	25	20	80%	6.4
Out of Context	27	9	33%	0.07	10	6	60%	7.0
Quite a Problem	2637	1126	43%	0.00	1065	982	92%	1.8
Ragged Right	3239	1629	50%	0.00	1608	1478	92%	1.9
Stacking Curvy Blocks	311	94	30%	0.00	102	84	82%	3.8
Texas Summers	273	81	30%	0.02	82	64	78%	4.9
Unicycle Counting	165	38	23%	0.00	49	33	67%	6.1