Problems from North American Invitational Programming Contest (NAIPC) 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Area of Effect1.001546491531%9.2Harden
Canyon Mapping0.062927221045%7.4Harden
Extensive Or0.02701635079%5.7Harden
Magic Checkerboard0.0744153732260%7.3Harden
Primal Partitions0.0050425620179%5.7Harden
Rainbow Zamboni0.029021187664%7.1Harden
Sand Art0.0425131017574%6.9Harden
String Stretching0.0083527211643%8.6Harden
Vending Machine0.0284118810154%8.2Harden
Zig Zag Nametag0.0014273160483%4.5Mediumen