Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520719328516%5.6Harden
A+B Problem0.03514066147510%6.5Harden
Boxes0.0652800110339%3.3Mediumen
Classrooms0.0517614869240016%4.7Mediumen
Crazy Driver0.005216064930%4.5Mediumen
Curious Cupid0.05955133825519%6.1Harden
Dim Sum0.088993075317%9.1Harden
Let's Meet0.0096273013919%8.4Harden
Palindromes0.09147284617020%7.4Harden
Take Two Stones0.005816494469255%1.2Easyen
k-Colouring of a Graph0.0319342916522%8.8Harden