Problems from 2013 University of Chicago Invitational Programming Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
3D Printer	547	110	20%	0.00	210	87	41%	8.4
Automatic Trading	741	212	29%	0.03	196	128	65%	5.3
Can of Worms	376	77	20%	0.05	84	55	65%	5.6
Flooding Fields	130	27	21%	0.02	35	25	71%	6.7
Goat Ropes	132	61	46%	0.00	46	34	74%	6.6
Job Postings	150	52	35%	0.01	44	37	84%	5.7
Overlapping Maps	135	77	57%	0.00	63	57	90%	4.7
Satisfaction Guaranteed	167	17	10%	6.78	17	7	41%	9.0
Uniform Subtrees	67	16	24%	0.52	21	16	76%	6.6
Unreal Estate	178	45	25%	0.01	36	24	67%	7.6
Winter Roads	138	14	10%	0.40	19	11	58%	7.5