Problems from 2014 ICPC North America Qualifier

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Color Walk0.00711663756%8.4Harden
Eight Queens0.001765018410282%3.1Mediumen
Flexible Spaces0.00715269490793%1.7Easyen
Flip Five0.001511454127087%4.1Mediumen
Human Cannonball Run0.003843840360594%1.6Easyen
Mixed Fractions0.00498807830594%1.5Easyen
Narrow Art Gallery0.003183899339687%2.6Easyen
Pesky Mosquitoes0.0045044035982%4.2Mediumen
Tractor0.0010647733971%5.8Harden
Units0.0048344836181%6.7Harden
Yikes - Bikes!0.007211276450%8.2Harden