Problems from 2013 University of Chicago Invitational Programming Contest

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
3D Printer 974 160 16% 0.00 400 122 30% 8.9
Automatic Trading 1265 384 30% 0.03 308 214 69% 5.1
Can of Worms 601 133 22% 0.04 140 97 69% 6.3
Flooding Fields 299 75 25% 0.02 76 58 76% 7.8
Goat Ropes 196 87 44% 0.00 74 52 70% 7.1
Job Postings 244 107 44% 0.01 80 68 85% 5.0
Overlapping Maps 202 105 52% 0.00 88 78 89% 5.0
Satisfaction Guaranteed 366 25 7% 6.78 35 11 31% 9.6
Uniform Subtrees 128 46 36% 0.23 29 23 79% 6.4
Unreal Estate 326 90 28% 0.01 65 43 66% 7.7
Winter Roads 337 33 10% 0.18 50 20 40% 9.0