Problems from ICPC 2012 North American Qualifier

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Choosing Numbers	628	123	20%	0.02	151	96	64%	7.3
Hitting the Targets	2472	1475	60%	0.00	1426	1337	94%	1.6
Loopy Transit	239	138	58%	0.00	141	121	86%	3.8
Maze Movement	589	307	52%	0.06	251	217	86%	4.0
Multi-Touch Gesture Classification	127	31	24%	0.00	30	23	77%	7.2
Out of Context	31	10	32%	0.04	12	7	58%	8.0
Quite a Problem	4522	1921	42%	0.00	1808	1641	91%	2.2
Ragged Right	4291	2195	51%	0.00	2182	2007	92%	1.8
Stacking Curvy Blocks	561	162	29%	0.00	176	145	82%	4.4
Texas Summers	864	300	35%	0.02	253	211	83%	3.9
Unicycle Counting	224	55	25%	0.00	71	49	69%	6.7