Problems from Hong Kong Regional Contest 2016

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Colourful Graph 397 88 22% 0.01 76 46 61% 7.4
Doors 1822 383 21% 0.01 163 123 75% 5.4
Peak Tower 702 44 6% 0.07 50 20 40% 8.5
Peak Tram 503 123 24% 0.04 82 58 71% 5.5
Perfect k-ary Tree 237 61 26% 0.17 59 34 58% 8.1
Playing with Numbers 1056 402 38% 0.01 140 121 86% 4.6
Scaffolding 104 27 26% 0.01 29 19 66% 6.3
Slim Cut 216 74 34% 0.08 46 35 76% 6.5
Special Tour 190 32 17% 0.01 39 24 62% 6.4
Taboo 1323 234 18% 0.01 109 75 69% 6.8
Team Up 868 201 23% 0.06 121 92 76% 6.3