Problems from 2018 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Bingo Ties	3083	470	15%	0.00	767	328	43%	7.6
Das Blinkenlights	6392	2935	46%	0.00	2520	2358	94%	1.7
Ebony and Ivory	514	220	43%	0.00	232	193	83%	5.4
Froggie	4079	618	15%	0.00	679	422	62%	6.2
Fruit Slicer	1512	239	16%	0.00	216	145	67%	7.4
LCM Tree	149	28	19%	0.07	53	20	38%	8.4
Left and Right	2885	1294	45%	0.01	1146	926	81%	3.4
Longest Life	574	154	27%	0.03	153	93	61%	7.6
Monitoring Ski Paths	987	254	26%	0.02	234	157	67%	7.1
Peg Game for Two	513	366	71%	0.01	282	258	91%	3.3
Run-Length Encoding, Run!	4918	2935	60%	0.00	2628	2458	94%	1.9
Superdoku	970	264	27%	0.00	318	189	59%	7.0
Triangular Clouds	324	76	23%	0.11	84	32	38%	8.4