Problems from 2012 University of Chicago Invitational Programming Contest

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
CosmoCraft0.01842362158%7.7Harden
Covered Walkway0.0546265449876%4.3Mediumen
Double Dealing0.124401148171%6.4Harden
Estimation0.1682815012080%5.1Mediumen
Juggler0.0168414111279%5.4Mediumen
Red/Blue Spanning Tree0.0051845135579%4.8Mediumen
Science!0.0111921016059%7.9Harden
The End of the World0.007413610577%4.8Mediumen
The Red Gem0.012222724258%8.8Harden
The Worm in the Apple0.121993494082%4.6Mediumen