Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520940331616%5.5Harden
A+B Problem0.03514463154911%6.1Harden
Boxes0.0652829111739%3.3Mediumen
Classrooms0.0517615272250216%3.9Mediumen
Crazy Driver0.005218065130%4.5Mediumen
Curious Cupid0.05955134726019%6.1Harden
Dim Sum0.088993225316%9.1Harden
Let's Meet0.0096274114019%8.3Harden
Palindromes0.09147288017420%7.3Harden
Take Two Stones0.005823294504755%1.2Easyen
k-Colouring of a Graph0.0319343126521%8.9Harden