Problems from HiQ Challenge 2018

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Costume Contest0.00561447132792%2.1Easyen
Halloween Loot0.002411289473%6.1Harden
IsItHalloween.com0.0029128541231796%1.3Easyen
Ministry of Magic0.0648916211973%6.5Harden
Wizard Dance0.06826915459%7.1Harden