Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520581324216%5.9Harden
A+B Problem0.03513802141810%6.6Harden
Boxes0.0652782109940%3.4Mediumen
Classrooms0.0517614235226416%5.8Harden
Crazy Driver0.005214364630%4.5Mediumen
Curious Cupid0.05955132525219%6.2Harden
Dim Sum0.088992934917%9.2Harden
Let's Meet0.0096271413619%8.6Harden
Palindromes0.09147282216921%7.4Harden
Take Two Stones0.005811124439055%1.2Easyen
k-Colouring of a Graph0.0319342676324%8.9Harden