Problems from HiQ Challenge 2018

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Costume Contest 1803 971 54% 0.00 945 877 93% 1.8
Halloween Loot 325 90 28% 0.00 93 72 77% 6.6
IsItHalloween.com 13517 7492 55% 0.00 7065 6807 96% 1.3
Ministry of Magic 430 128 30% 0.06 118 91 77% 6.6
Wizard Dance 246 47 19% 0.06 40 29 72% 8.5