Problems from 2019 ICPC North American Qualifier Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Circuit Math	2181	945	43%	0.00	975	859	88%	2.3
Diagonal Cut	2087	574	28%	0.00	693	517	75%	4.2
Gerrymandering	1571	1030	66%	0.00	999	961	96%	1.4
Missing Numbers	2910	1476	51%	0.00	1433	1336	93%	1.8
NVWLS	1311	127	10%	0.20	246	90	37%	8.1
Prospecting	166	23	14%	0.07	33	15	45%	8.8
Research Productivity Index	630	347	55%	0.00	362	314	87%	2.8
Running Routes	577	179	31%	0.03	202	151	75%	6.4
Slow Leak	1121	302	27%	0.03	343	252	73%	5.2
Stop Counting!	1579	409	26%	0.03	508	318	63%	5.1
Summer Trip	1204	645	54%	0.00	671	579	86%	2.4
Traveling Merchant	408	156	38%	0.06	172	111	65%	6.4
Zipline	2042	599	29%	0.00	655	516	79%	3.6