Problems from 2014 ICPC North America Qualifier

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Color Walk0.00711633556%8.4Harden
Eight Queens0.001764963406082%3.0Mediumen
Flexible Spaces0.00715187482993%1.8Easyen
Flip Five0.001511439125587%4.2Mediumen
Human Cannonball Run0.003843672344594%1.7Easyen
Mixed Fractions0.00498761826094%1.5Easyen
Narrow Art Gallery0.003183851334987%2.7Easyen
Pesky Mosquitoes0.0045043835681%4.3Mediumen
Tractor0.0010647333571%5.8Harden
Units0.0048344736081%6.7Harden
Yikes - Bikes!0.007211266451%8.2Harden