Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 6542 2215 34% 0.00 2211 1847 84% 2.8
Biggest Slice 714 169 24% 0.00 218 135 62% 6.7
Erratic Ants 1191 364 31% 0.00 422 306 73% 4.9
Even Up Solitaire 4033 1431 35% 0.00 1310 1065 81% 2.7
Goldbach's Conjecture 3632 1367 38% 0.00 1315 1053 80% 3.0
Island Buses 450 133 30% 0.00 140 102 73% 6.2
Oddities 18681 10606 57% 0.00 9453 9134 97% 1.3
Plotting Polynomials 247 191 77% 0.00 195 177 91% 2.5
Shotcube 310 42 14% 0.17 66 27 41% 8.8
Ternarian Weights 613 239 39% 0.00 273 225 82% 3.9
Trapezoid Walkway 443 208 47% 0.00 207 181 87% 3.3