Problems from Hong Kong Regional Contest 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Colourful Graph0.0119002955519%6.3Harden
Doors0.0174962412921%6.0Harden
Peak Tower0.0126743993810%8.2Harden
Peak Tram0.0811233046020%6.2Harden
Perfect k-ary Tree0.2211772013919%7.9Harden
Playing with Numbers0.0269941314836%4.8Mediumen
Scaffolding0.01877491224%5.6Harden
Slim Cut0.0811831654427%6.8Harden
Special Tour0.0011281752011%6.5Harden
Taboo0.01121664010817%6.6Harden
Team Up0.09108352610019%5.7Harden