Problems from ACM-ICPC World Finals 2019

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Azulejos	3263	681	21%	0.23	638	435	68%	5.1
Beautiful Bridges	784	158	20%	0.23	136	107	79%	5.2
Checks Post Facto	177	48	27%	0.00	39	27	69%	4.4
Circular DNA	1000	359	36%	0.03	306	265	87%	3.3
Dead-End Detector	1349	389	29%	0.10	318	271	85%	3.7
Directing Rainfall	632	81	13%	1.12	58	38	66%	6.8
First of Her Name	1552	362	23%	0.16	229	194	85%	5.3
Hobson's Trains	818	240	29%	0.09	190	162	85%	4.3
Karel the Robot	444	121	27%	0.17	58	51	88%	5.1
Miniature Golf	754	141	19%	0.79	140	96	69%	7.9
Traffic Blights	224	60	27%	0.03	49	42	86%	4.7