Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 8623 2899 34% 0.00 2861 2383 83% 2.8
Biggest Slice 791 189 24% 0.00 240 148 62% 6.6
Erratic Ants 1383 415 30% 0.00 478 348 73% 4.9
Even Up Solitaire 4633 1697 37% 0.00 1566 1291 82% 2.7
Goldbach's Conjecture 4119 1593 39% 0.00 1505 1228 82% 2.7
Island Buses 522 154 30% 0.00 161 117 73% 6.3
Oddities 24749 13576 55% 0.00 12144 11724 97% 1.3
Plotting Polynomials 310 244 79% 0.00 232 212 91% 2.5
Shotcube 331 47 14% 0.17 71 30 42% 8.2
Ternarian Weights 671 272 41% 0.00 299 250 84% 3.7
Trapezoid Walkway 478 221 46% 0.00 226 194 86% 3.5