Problems from North American Invitational Programming Contest (NAIPC) 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Area of Effect1.001546431535%8.7Harden
Canyon Mapping0.062927221045%7.4Harden
Extensive Or0.02701624979%5.8Harden
Magic Checkerboard0.0744153532060%7.4Harden
Primal Partitions0.0050425520078%5.7Harden
Rainbow Zamboni0.029021187664%7.2Harden
Sand Art0.0425131017574%7.0Harden
String Stretching0.0083527011643%8.7Harden
Vending Machine0.0284118810154%8.2Harden
Zig Zag Nametag0.0014272660083%4.5Mediumen