Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	969	215	22%	0.00	278	185	67%	6.1
Bumped!	4870	1107	23%	0.04	806	625	78%	4.3
Canonical Coin Systems	4615	1011	22%	0.01	1061	591	56%	5.2
Cat and Mice	1172	277	24%	0.30	226	162	72%	6.6
Company Picnic	715	304	43%	0.00	262	216	82%	4.6
GlitchBot	2221	1365	61%	0.00	1215	1125	93%	1.9
Greeting Card	3344	960	29%	0.04	979	671	69%	4.6
Imperfect GPS	2062	645	31%	0.00	674	521	77%	4.1
Odd Gnome	5910	3444	58%	0.00	2964	2795	94%	1.6
Progressive Scramble	2294	1228	54%	0.00	1165	1060	91%	2.0
Space Probe	720	237	33%	0.19	189	155	82%	5.0
Suspension Bridges	2766	733	27%	0.00	651	533	82%	3.6
Umbral Decoding	671	109	16%	0.01	166	89	54%	7.3