Problems from Hong Kong Regional Online Preliminary 2016

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
0-1 Sequences0.00520671327316%5.6Harden
A+B Problem0.03513929144710%6.5Harden
Boxes0.0652786109839%3.4Mediumen
Classrooms0.0517614301228916%5.9Harden
Crazy Driver0.005214964730%4.6Mediumen
Curious Cupid0.05955133025219%6.2Harden
Dim Sum0.088992984916%9.2Harden
Let's Meet0.0096271913619%8.6Harden
Palindromes0.09147284017020%7.4Harden
Take Two Stones0.005814014452655%1.2Easyen
k-Colouring of a Graph0.0319342746323%9.0Harden