Problems from Hong Kong Regional Contest 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Colourful Graph0.0119003305617%6.4Harden
Doors0.0158566713120%5.9Harden
Peak Tower0.012674441399%8.0Harden
Peak Tram0.0811233466218%6.6Harden
Perfect k-ary Tree0.2211772534719%7.7Harden
Playing with Numbers0.0169947516234%4.8Mediumen
Scaffolding0.01877901517%6.2Harden
Slim Cut0.0811832044623%7.0Harden
Special Tour0.001128228219%7.5Harden
Taboo0.01121669611216%6.7Harden
Team Up0.09108358010618%5.7Harden