Problems from North American Invitational Programming Contest (NAIPC) 2015

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Area of Effect1.712517279269%8.7Harden
Canyon Mapping0.0629271461913%7.3Harden
Extensive Or0.027011656741%5.0Mediumen
Magic Checkerboard0.07441427661714%7.5Harden
Primal Partitions0.0050494829431%5.8Harden
Rainbow Zamboni0.0290255911921%7.3Harden
Sand Art0.04251367111417%6.9Harden
String Stretching0.00835138123017%8.7Harden
Vending Machine0.0284177511715%8.2Harden
Zig Zag Nametag0.00142175869540%4.3Mediumen