Problems from 2018 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Bingo Ties	2718	364	13%	0.00	672	266	40%	7.1
Das Blinkenlights	4303	1906	44%	0.00	1681	1561	93%	1.8
Ebony and Ivory	474	195	41%	0.00	209	171	82%	5.1
Froggie	2646	397	15%	0.00	480	284	59%	6.7
Fruit Slicer	1191	178	15%	0.00	165	106	64%	6.6
LCM Tree	117	19	16%	0.07	40	13	32%	9.0
Left and Right	2430	992	41%	0.01	935	736	79%	3.4
Longest Life	463	99	21%	0.03	121	71	59%	5.3
Monitoring Ski Paths	813	189	23%	0.05	187	117	63%	6.2
Peg Game for Two	272	208	76%	0.01	194	178	92%	2.9
Run-Length Encoding, Run!	3357	2029	60%	0.00	1858	1757	95%	1.6
Superdoku	709	158	22%	0.00	221	111	50%	6.6
Triangular Clouds	239	50	21%	0.12	70	27	39%	7.0