Problems from 2017 ACM ICPC North Central North America Regional Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Atlantis	678	129	19%	0.03	155	92	59%	7.1
Lost Map	6460	3253	50%	0.10	2065	1912	93%	2.1
Pokemon Go Go	1305	423	32%	0.02	319	260	82%	5.4
Racing Around the Alphabet	2525	1621	64%	0.00	1523	1467	96%	1.5
Smooth Array	313	102	33%	0.04	93	74	80%	7.8
Stoichiometry	167	56	34%	0.00	64	47	73%	5.4
Urban Design	398	209	53%	0.02	187	168	90%	4.2
Zebras and Ocelots	2844	1029	36%	0.00	1015	882	87%	3.2