Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520537323016%6.0Harden
A+B Problem0.03513595140210%6.5Harden
Boxes0.0652774109640%3.4Mediumen
Classrooms0.0517614002223216%5.6Harden
Crazy Driver0.005212564030%4.6Mediumen
Curious Cupid0.05955130325019%6.2Harden
Dim Sum0.088992904917%9.2Harden
Let's Meet0.0096271213619%8.6Harden
Palindromes0.09147281816720%7.4Harden
Take Two Stones0.005807964416955%1.3Easyen
k-Colouring of a Graph0.0319342656324%8.9Harden