Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 7103 2375 33% 0.00 2386 1989 83% 2.8
Biggest Slice 753 176 23% 0.00 230 139 60% 6.8
Erratic Ants 1218 374 31% 0.00 430 313 73% 4.9
Even Up Solitaire 4157 1489 36% 0.00 1375 1116 81% 2.8
Goldbach's Conjecture 3687 1399 38% 0.00 1345 1081 80% 3.0
Island Buses 451 134 30% 0.00 141 103 73% 6.2
Oddities 21056 11527 55% 0.00 10267 9905 96% 1.4
Plotting Polynomials 255 195 76% 0.00 201 181 90% 2.6
Shotcube 313 45 14% 0.17 67 28 42% 8.7
Ternarian Weights 614 240 39% 0.00 274 226 82% 3.9
Trapezoid Walkway 452 210 46% 0.00 210 183 87% 3.4