Problems from 2020 ICPC North American Qualifier Contest

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Drawing Circles	0.18	1362	144	92	64%	8.5Hard	en
Perfect Path Patrol	0.04	162	210	172	82%	5.8Hard	en
Sky's the Limit	0.01	687	176	65	37%	8.7Hard	en
Using Digits	0.00	579	490	392	80%	4.4Medium	en