Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234857415%8.0Harden
Cost of Living0.0119074646013%8.9Harden
Cutting Strings0.0920373376820%8.6Harden
Heaps of Fun0.0014941415438%5.6Harden
Intersecting Rectangles0.05639120437531%5.5Harden
It's a Mod, Mod, Mod, Mod World0.05251102717917%7.1Harden
Knight of the Tarot Cards2.5513053979424%8.3Harden
Monotony0.61111230311337%7.9Harden
Piece of Cake0.0141199721121%8.2Harden
Planes, Trains, but not Automobiles0.0418712987425%7.7Harden
Rocket Powered Hovercraft0.008573677922%5.5Harden
Subsequences in Substrings0.0112682536344%4.9Mediumen
XOR Sequences0.0162936812634%5.8Harden