Problems from 2015 Southeast USA Regionals Division 1

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Airports 698 217 31% 0.11 189 141 75% 5.5
Checkers 219 33 15% 0.00 75 30 40% 7.8
Coverage 160 32 20% 0.04 45 28 62% 7.1
Gears 262 125 48% 0.00 135 119 88% 3.7
Grid 5698 2206 39% 0.01 1596 1380 86% 3.2
Hilbert Sort 307 80 26% 0.04 89 65 73% 6.5
Racing Gems 143 59 41% 0.03 65 49 75% 6.7
Simplicity 2956 1151 39% 0.00 1116 964 86% 2.9
Weightlifting 179 73 41% 0.00 55 49 89% 4.3