Problems from Hong Kong Regional Contest 2016 Practice Session

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Arithmetic 3219 923 29% 0.00 950 733 77% 3.9
Ball Tricks 68 4 6% 0.30 4 3 75% 7.8
Circumsphere 151 46 30% 0.00 43 35 81% 4.6