Problems from North American Invitational Programming Contest (NAIPC) 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Area of Effect1.001546511529%9.3Harden
Canyon Mapping0.062927221045%7.6Harden
Extensive Or0.02701635079%6.0Harden
Magic Checkerboard0.0744153832360%7.4Harden
Primal Partitions0.0050425620179%5.7Harden
Rainbow Zamboni0.029021187664%7.2Harden
Sand Art0.0425131017574%7.0Harden
String Stretching0.0083527211643%8.6Harden
Vending Machine0.0284118810154%8.2Harden
Zig Zag Nametag0.0014273560783%4.5Mediumen