Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	912	192	21%	0.00	257	165	64%	6.2
Bumped!	4420	969	22%	0.05	697	528	76%	4.4
Canonical Coin Systems	3278	696	21%	0.01	897	469	52%	5.7
Cat and Mice	988	228	23%	0.30	195	133	68%	6.9
Company Picnic	661	270	41%	0.00	238	193	81%	5.1
GlitchBot	1991	1218	61%	0.00	1092	1008	92%	2.0
Greeting Card	2983	827	28%	0.04	876	581	66%	4.9
Imperfect GPS	1835	586	32%	0.00	621	475	76%	4.2
Odd Gnome	4998	2858	57%	0.00	2471	2323	94%	1.7
Progressive Scramble	2075	1107	53%	0.00	1057	952	90%	2.1
Space Probe	573	216	38%	0.19	172	142	83%	5.1
Suspension Bridges	1998	531	27%	0.00	508	399	79%	4.6
Umbral Decoding	645	101	16%	0.01	160	84	52%	7.4