Problems from 2015 Southeast USA Regionals Division 1

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Airports0.12808163342226%5.1Mediumen
Checkers0.008302594015%8.7Harden
Coverage0.0413751753319%6.6Harden
Gears0.0055147622447%3.5Mediumen
Grid0.0122510733391536%2.6Easyen
Hilbert Sort0.0450636210228%5.9Harden
Racing Gems0.032981626138%7.3Harden
Simplicity0.0053922141536%2.7Easyen
Weightlifting0.001502208740%4.9Mediumen