Problems from North American Invitational Programming Contest (NAIPC) 2019

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Busy Board 482 81 17% 0.01 119 65 55% 7.2
Cost of Living 204 36 18% 0.01 62 27 44% 8.8
Cutting Strings 251 46 18% 0.09 59 31 53% 8.2
Heaps of Fun 123 63 51% 0.00 55 47 85% 4.6
Intersecting Rectangles 1338 372 28% 0.03 276 205 74% 5.9
It's a Mod, Mod, Mod, Mod World 1046 185 18% 0.05 207 98 47% 7.0
Knight of the Tarot Cards 255 55 22% 4.33 47 26 55% 8.3
Monotony 248 115 46% 0.61 82 64 78% 6.2
Piece of Cake 666 237 36% 0.01 200 141 70% 6.1
Planes, Trains, but not Automobiles 239 65 27% 0.05 59 45 76% 5.9
Rocket Powered Hovercraft 228 61 27% 0.00 42 33 79% 6.4
Subsequences in Substrings 1073 422 39% 0.01 291 240 82% 4.9
XOR Sequences 310 120 39% 0.00 106 86 81% 4.8