Problems from 2012 University of Chicago Invitational Programming Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
CosmoCraft	26	11	42%	0.04	12	9	75%	6.2
Covered Walkway	1356	359	26%	0.04	307	225	73%	4.6
Double Dealing	219	69	32%	0.12	75	55	73%	7.1
Estimation	253	92	36%	0.16	93	76	82%	5.5
Juggler	143	61	43%	0.01	63	52	83%	6.1
Red/Blue Spanning Tree	356	105	29%	0.04	114	86	75%	5.3
Science!	222	63	28%	0.01	66	44	67%	8.0
The End of the World	129	72	56%	0.00	60	53	88%	3.9
The Red Gem	113	30	27%	0.01	27	23	85%	5.8
The Worm in the Apple	39	22	56%	0.12	13	12	92%	4.9