Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234597316%8.1Harden
Cost of Living0.0119074405813%9.1Harden
Cutting Strings0.0920372946522%8.8Harden
Heaps of Fun0.0014941235141%5.8Harden
Intersecting Rectangles0.05639109634431%6.0Harden
It's a Mod, Mod, Mod, Mod World0.0636995316718%7.3Harden
Knight of the Tarot Cards2.5513053619125%8.0Harden
Monotony0.61111227211141%7.8Harden
Piece of Cake0.0141195619821%8.4Harden
Planes, Trains, but not Automobiles0.0418712677026%8.2Harden
Rocket Powered Hovercraft0.008573447622%4.9Mediumen
Subsequences in Substrings0.0112678634744%5.0Mediumen
XOR Sequences0.0165432811034%6.3Harden