Problems from North American Invitational Programming Contest (NAIPC) 2018

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cut It Out! 112 57 51% 0.03 45 35 78% 4.4
Double Clique 301 75 25% 0.01 86 58 67% 7.8
Flashing Fluorescents 509 178 35% 0.00 138 108 78% 3.9
Missing Gnomes 1651 648 39% 0.01 477 423 89% 2.3
Prefix Free Code 1699 355 21% 0.04 275 180 65% 6.5
Probe Droids 293 58 20% 0.00 74 36 49% 6.6
Rainbow Graph 49 18 37% 0.01 24 14 58% 5.4
Recovery 782 243 31% 0.00 213 170 80% 4.6
Red Black Tree 605 227 38% 0.09 140 120 86% 3.9
Winter Festival 37 13 35% 0.07 21 12 57% 6.1
Zoning Houses 934 275 29% 0.09 216 151 70% 5.7