Problems from 2012 University of Chicago Invitational Programming Contest

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
CosmoCraft0.01842973031%5.8Harden
Covered Walkway0.05462233971731%4.5Mediumen
Double Dealing0.124403099832%6.4Harden
Estimation0.1682839514436%4.6Mediumen
Juggler0.0168443014133%5.4Mediumen
Red/Blue Spanning Tree0.01518196252527%5.1Mediumen
Science!0.0111923607822%8.1Harden
The End of the World0.007436713737%4.8Mediumen
The Red Gem0.0122222174621%7.9Harden
The Worm in the Apple0.1219931176152%4.5Mediumen