Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234807415%8.0Harden
Cost of Living0.0119074576013%8.9Harden
Cutting Strings0.0920373176621%8.7Harden
Heaps of Fun0.0014941405439%5.5Harden
Intersecting Rectangles0.05639120337531%5.5Harden
It's a Mod, Mod, Mod, Mod World0.05251101617717%7.1Harden
Knight of the Tarot Cards2.5513053769124%8.1Harden
Monotony0.61111229611338%7.8Harden
Piece of Cake0.0141197820121%8.3Harden
Planes, Trains, but not Automobiles0.0418712857326%8.1Harden
Rocket Powered Hovercraft0.008573667922%5.2Mediumen
Subsequences in Substrings0.0112682336244%4.9Mediumen
XOR Sequences0.0162935711833%6.3Harden