Problems from 2012 University of Chicago Invitational Programming Contest

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
CosmoCraft0.018421263125%7.6Harden
Covered Walkway0.05462248576931%4.3Mediumen
Double Dealing0.1244033210331%6.3Harden
Estimation0.1682854015429%5.2Mediumen
Juggler0.0168445915033%5.4Mediumen
Red/Blue Spanning Tree0.00518203955727%4.8Mediumen
Science!0.0111923888622%7.7Harden
The End of the World0.007438813936%5.0Mediumen
The Red Gem0.0122223405316%8.9Harden
The Worm in the Apple0.1219931436848%5.4Mediumen