Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 13580 4695 35% 0.00 4477 3777 84% 2.9
Biggest Slice 1129 278 25% 0.00 305 195 64% 6.4
Erratic Ants 1635 495 30% 0.00 573 424 74% 5.0
Even Up Solitaire 6945 2768 40% 0.00 2422 2044 84% 2.8
Goldbach's Conjecture 5268 2105 40% 0.00 1973 1651 84% 2.3
Island Buses 654 187 29% 0.00 218 146 67% 7.1
Oddities 34312 18709 55% 0.00 16480 15858 96% 1.3
Plotting Polynomials 394 304 77% 0.00 291 269 92% 2.4
Shotcube 384 63 16% 0.17 83 38 46% 8.4
Ternarian Weights 877 363 41% 0.00 376 313 83% 3.9
Trapezoid Walkway 549 269 49% 0.00 267 233 87% 3.5