Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 6297 2125 34% 0.00 2123 1769 83% 3.0
Biggest Slice 683 161 24% 0.00 208 129 62% 6.5
Erratic Ants 1179 358 30% 0.00 417 301 72% 4.8
Even Up Solitaire 3929 1383 35% 0.00 1273 1032 81% 2.7
Goldbach's Conjecture 3538 1330 38% 0.00 1281 1021 80% 3.1
Island Buses 440 130 30% 0.00 136 99 73% 5.9
Oddities 18207 10309 57% 0.00 9176 8866 97% 1.3
Plotting Polynomials 240 185 77% 0.00 188 171 91% 2.4
Shotcube 255 42 16% 0.17 63 27 43% 7.6
Ternarian Weights 601 233 39% 0.00 266 219 82% 3.9
Trapezoid Walkway 417 198 47% 0.00 196 171 87% 3.4