Problems from Hong Kong Regional Contest 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Colourful Graph0.0119003485817%6.6Harden
Doors0.0158571014220%5.9Harden
Peak Tower0.012674464398%8.1Harden
Peak Tram0.0811233686217%6.8Harden
Perfect k-ary Tree0.2211772654718%7.8Harden
Playing with Numbers0.0169951316332%4.9Mediumen
Scaffolding0.018771101514%6.6Harden
Slim Cut0.0811832235022%6.8Harden
Special Tour0.001128252229%7.6Harden
Taboo0.01121670311316%6.5Harden
Team Up0.09108360010618%5.7Harden