Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234427016%8.0Harden
Cost of Living0.0120723935414%9.1Harden
Cutting Strings0.0920372826423%8.7Harden
Heaps of Fun0.0014941044745%5.9Harden
Intersecting Rectangles0.05639105233332%5.8Harden
It's a Mod, Mod, Mod, Mod World0.0636991915517%7.4Harden
Knight of the Tarot Cards2.5514632976622%8.0Harden
Monotony0.61111225410843%8.0Harden
Piece of Cake0.0141188718521%8.4Harden
Planes, Trains, but not Automobiles0.0418712566927%8.2Harden
Rocket Powered Hovercraft0.008573307422%5.0Mediumen
Subsequences in Substrings0.0112670632947%4.9Mediumen
XOR Sequences0.0165430610534%6.0Harden