Problems from North American Invitational Programming Contest (NAIPC) 2019

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Busy Board 588 97 16% 0.01 137 75 55% 7.5
Cost of Living 231 40 17% 0.01 73 30 41% 8.9
Cutting Strings 339 69 20% 0.09 73 40 55% 8.4
Heaps of Fun 143 75 52% 0.00 65 55 85% 5.7
Intersecting Rectangles 1569 446 28% 0.03 321 242 75% 6.1
It's a Mod, Mod, Mod, Mod World 1214 243 20% 0.05 242 124 51% 6.9
Knight of the Tarot Cards 290 62 21% 4.33 51 29 57% 8.5
Monotony 317 148 47% 0.61 99 77 78% 7.1
Piece of Cake 1092 292 27% 0.01 340 170 50% 8.0
Planes, Trains, but not Automobiles 320 87 27% 0.04 77 56 73% 7.9
Rocket Powered Hovercraft 303 72 24% 0.00 46 38 83% 5.5
Subsequences in Substrings 1203 501 42% 0.01 326 274 84% 4.8
XOR Sequences 373 148 40% 0.00 125 104 83% 4.4