Problems from 2020 ICPC North American Qualifier Contest

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Drawing Circles	0.18	1362	147	95	65%	8.5Hard	en
Perfect Path Patrol	0.04	162	232	189	81%	5.8Hard	en
Sky's the Limit	0.01	687	181	67	37%	8.7Hard	en
Using Digits	0.00	579	499	398	80%	4.4Medium	en