Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00519205300816%5.8Harden
A+B Problem0.0351233011469%7.3Harden
Boxes0.065247895238%3.7Mediumen
Classrooms0.0525910524161015%5.7Harden
Crazy Driver0.005154553234%3.9Mediumen
Curious Cupid0.05955126623919%6.3Harden
Dim Sum0.088991114238%7.6Harden
Let's Meet0.0096267612919%8.7Harden
Palindromes0.09203867412819%7.9Harden
Take Two Stones0.005738184041755%1.3Easyen
k-Colouring of a Graph0.0319342004924%8.8Harden