Problems from 2014 ICPC North America Qualifier

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Color Walk0.00711663756%8.4Harden
Eight Queens0.001765064414782%2.9Mediumen
Flexible Spaces0.00715301493593%1.8Easyen
Flip Five0.001511464127987%3.9Mediumen
Human Cannonball Run0.003843865362994%1.6Easyen
Mixed Fractions0.00498864836094%1.5Easyen
Narrow Art Gallery0.003184024351387%2.2Easyen
Pesky Mosquitoes0.0045044236182%4.2Mediumen
Tractor0.0010647834272%5.5Harden
Units0.0048345036481%5.5Harden
Yikes - Bikes!0.007211276450%8.2Harden