Problems from 2018 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Bingo Ties	2848	406	14%	0.00	694	282	41%	7.3
Das Blinkenlights	4890	2195	45%	0.00	1913	1786	93%	1.7
Ebony and Ivory	479	200	42%	0.00	214	176	82%	5.4
Froggie	2838	429	15%	0.00	495	297	60%	6.8
Fruit Slicer	1234	193	16%	0.00	180	116	64%	6.8
LCM Tree	118	20	17%	0.07	41	14	34%	9.0
Left and Right	2566	1078	42%	0.01	984	778	79%	3.6
Longest Life	498	118	24%	0.03	131	79	60%	5.7
Monitoring Ski Paths	835	199	24%	0.02	194	123	63%	6.4
Peg Game for Two	380	262	69%	0.01	233	212	91%	3.2
Run-Length Encoding, Run!	3897	2324	60%	0.00	2075	1954	94%	1.7
Superdoku	774	187	24%	0.00	245	134	55%	6.4
Triangular Clouds	268	62	23%	0.11	72	28	39%	8.0