Problems from North American Invitational Programming Contest (NAIPC) 2019

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Busy Board0.019234687316%8.1Harden
Cost of Living0.0119074495813%9.1Harden
Cutting Strings0.0920373106521%8.9Harden
Heaps of Fun0.0014941325139%5.8Harden
Intersecting Rectangles0.05639110834631%6.0Harden
It's a Mod, Mod, Mod, Mod World0.0625196617118%7.3Harden
Knight of the Tarot Cards2.5513053709125%8.0Harden
Monotony0.61111228111140%7.7Harden
Piece of Cake0.0141196719921%8.4Harden
Planes, Trains, but not Automobiles0.0418712767025%8.2Harden
Rocket Powered Hovercraft0.008573537622%4.9Mediumen
Subsequences in Substrings0.0112679734944%5.0Mediumen
XOR Sequences0.0162934911734%6.1Harden