Problems from North American Invitational Programming Contest (NAIPC) 2018

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cut It Out! 208 82 39% 0.03 70 53 76% 5.9
Double Clique 434 120 28% 0.01 118 81 69% 8.0
Flashing Fluorescents 692 236 34% 0.00 173 138 80% 6.6
Missing Gnomes 3959 1442 36% 0.01 1057 922 87% 3.4
Prefix Free Code 2383 553 23% 0.04 355 251 71% 7.1
Probe Droids 413 81 20% 0.00 105 51 49% 9.1
Rainbow Graph 243 118 49% 0.01 71 54 76% 4.7
Recovery 1213 372 31% 0.00 258 212 82% 5.9
Red Black Tree 921 384 42% 0.04 192 166 86% 5.8
Winter Festival 48 19 40% 0.07 26 17 65% 6.8
Zoning Houses 1240 394 32% 0.09 273 199 73% 7.0