Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234577316%8.1Harden
Cost of Living0.0119074385813%9.1Harden
Cutting Strings0.0920372926522%8.8Harden
Heaps of Fun0.0014941215142%5.8Harden
Intersecting Rectangles0.05639109334431%6.0Harden
It's a Mod, Mod, Mod, Mod World0.0636994916718%7.3Harden
Knight of the Tarot Cards2.5513053288024%8.0Harden
Monotony0.61111226811141%7.7Harden
Piece of Cake0.0141195319821%8.4Harden
Planes, Trains, but not Automobiles0.0418712647027%8.2Harden
Rocket Powered Hovercraft0.008573407622%4.8Mediumen
Subsequences in Substrings0.0112677734344%5.1Mediumen
XOR Sequences0.0165432411034%6.2Harden