Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	925	198	21%	0.00	262	171	65%	6.2
Bumped!	4624	1021	22%	0.04	739	565	76%	4.3
Canonical Coin Systems	3530	771	22%	0.01	946	509	54%	5.7
Cat and Mice	1063	253	24%	0.30	208	147	71%	6.7
Company Picnic	687	287	42%	0.00	247	203	82%	5.0
GlitchBot	2063	1256	61%	0.00	1129	1043	92%	2.0
Greeting Card	3126	876	28%	0.04	916	615	67%	4.9
Imperfect GPS	1904	605	32%	0.00	640	490	77%	4.2
Odd Gnome	5211	3000	58%	0.00	2585	2435	94%	1.6
Progressive Scramble	2118	1144	54%	0.00	1092	987	90%	2.0
Space Probe	708	233	33%	0.19	185	151	82%	5.0
Suspension Bridges	2158	574	27%	0.00	543	433	80%	4.5
Umbral Decoding	665	107	16%	0.01	164	87	53%	7.3