Problems from Hong Kong Regional Contest 2016

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Colourful Graph 418 95 23% 0.01 84 50 60% 7.1
Doors 1874 387 21% 0.01 172 126 73% 5.8
Peak Tower 702 44 6% 0.07 50 20 40% 8.5
Peak Tram 522 135 26% 0.04 89 65 73% 4.2
Perfect k-ary Tree 264 64 24% 0.17 64 37 58% 7.4
Playing with Numbers 1083 410 38% 0.01 147 127 86% 4.6
Scaffolding 128 33 26% 0.01 35 23 66% 6.1
Slim Cut 242 80 33% 0.08 49 38 78% 5.9
Special Tour 227 33 15% 0.01 40 25 62% 6.2
Taboo 1343 238 18% 0.01 116 79 68% 7.0
Team Up 874 205 23% 0.06 124 95 77% 6.2