Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520717328516%5.6Harden
A+B Problem0.03514061147510%6.5Harden
Boxes0.0652792109939%3.3Mediumen
Classrooms0.0517614750237716%5.0Mediumen
Crazy Driver0.005215364730%4.5Mediumen
Curious Cupid0.05955133425219%6.2Harden
Dim Sum0.088993065317%9.1Harden
Let's Meet0.0096272913919%8.4Harden
Palindromes0.09147284517020%7.4Harden
Take Two Stones0.005816464469155%1.2Easyen
k-Colouring of a Graph0.0319342906522%8.8Harden