Problems from 2017 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Birthday Cake	1306	298	23%	0.00	341	243	71%	5.9
Bumped!	5435	1275	23%	0.04	933	736	79%	4.4
Canonical Coin Systems	6499	1417	22%	0.01	1300	791	61%	4.6
Cat and Mice	1782	593	33%	0.28	338	263	78%	5.3
Company Picnic	784	337	43%	0.00	295	243	82%	4.6
GlitchBot	2581	1594	62%	0.00	1399	1300	93%	1.9
Greeting Card	3861	1175	30%	0.04	1171	834	71%	4.4
Imperfect GPS	2662	857	32%	0.00	834	665	80%	3.9
Odd Gnome	8259	4811	58%	0.00	4192	3949	94%	1.6
Progressive Scramble	2595	1400	54%	0.00	1317	1202	91%	2.0
Space Probe	769	260	34%	0.19	212	171	81%	5.3
Suspension Bridges	3424	910	27%	0.00	802	666	83%	3.5
Umbral Decoding	1114	171	15%	0.01	208	119	57%	7.7