Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	778	168	22%	0.00	224	143	64%	6.3
Bumped!	3970	873	22%	0.05	609	454	75%	4.5
Canonical Coin Systems	2831	560	20%	0.01	797	396	50%	5.9
Cat and Mice	909	212	23%	0.30	174	120	69%	7.1
Company Picnic	604	240	40%	0.00	216	175	81%	5.2
GlitchBot	1799	1101	61%	0.00	980	904	92%	1.9
Greeting Card	2709	749	28%	0.04	801	517	65%	5.3
Imperfect GPS	1679	536	32%	0.00	560	427	76%	4.2
Odd Gnome	4155	2373	57%	0.00	2047	1922	94%	1.7
Progressive Scramble	1910	1001	52%	0.00	958	859	90%	2.1
Space Probe	545	212	39%	0.19	162	138	85%	4.7
Suspension Bridges	1674	449	27%	0.00	439	341	78%	5.0
Umbral Decoding	609	90	15%	0.01	148	75	51%	7.5