Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	830	183	22%	0.00	244	157	64%	6.1
Bumped!	4168	922	22%	0.05	647	486	75%	4.4
Canonical Coin Systems	3093	647	21%	0.01	855	440	51%	5.7
Cat and Mice	975	224	23%	0.30	192	131	68%	6.9
Company Picnic	634	257	41%	0.00	230	187	81%	5.0
GlitchBot	1913	1168	61%	0.00	1046	964	92%	2.0
Greeting Card	2839	789	28%	0.04	844	549	65%	5.1
Imperfect GPS	1731	557	32%	0.00	585	447	76%	4.3
Odd Gnome	4712	2676	57%	0.00	2312	2172	94%	1.7
Progressive Scramble	2012	1066	53%	0.00	1018	912	90%	2.2
Space Probe	559	216	39%	0.19	169	142	84%	5.0
Suspension Bridges	1877	508	27%	0.00	487	379	78%	4.8
Umbral Decoding	622	94	15%	0.01	153	79	52%	7.5