Problems from Hong Kong Regional Online Preliminary 2016

Name Fastest Shortest Total Acc. Ratio Difficulty Languages
0-1 Sequences 0.00 166 15714 2419 15% 6.1Hard en
A+B Problem 0.03 753 10476 839 8% 8.1Hard en
Boxes 0.06 410 1739 695 40% 4.2Medium en
Classrooms 0.05 259 4366 749 17% 6.6Hard en
Crazy Driver 0.00 228 932 343 37% 4.1Medium en
Curious Cupid 0.08 955 1229 221 18% 6.3Hard en
Dim Sum 0.08 899 103 39 38% 7.7Hard en
k-Colouring of a Graph 0.03 1934 187 47 25% 9.1Hard en
Let's Meet 0.00 962 610 112 18% 8.6Hard en
Palindromes 0.09 2038 483 89 18% 8.3Hard en
Take Two Stones 0.00 29 55542 31946 58% 1.4Easy en