Problems from KTH Challenge 2012

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Birds on a Wire0.00792451205184%2.7Easyen
Lifting Walls0.001761253104183%4.4Mediumen
Pub-lic Good0.0038741835886%3.7Mediumen
Restaurant Orders0.002822497191877%3.9Mediumen
Toilet Seat0.001033463304188%2.6Easyen
Xor Maximization0.0010223916669%6.4Harden