Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 9049 3083 34% 0.00 3034 2539 84% 2.6
Biggest Slice 791 189 24% 0.00 240 148 62% 6.6
Erratic Ants 1401 426 30% 0.00 489 358 73% 4.8
Even Up Solitaire 4800 1764 37% 0.00 1642 1351 82% 2.9
Goldbach's Conjecture 4261 1657 39% 0.00 1563 1281 82% 2.7
Island Buses 524 155 30% 0.00 162 118 73% 6.3
Oddities 25849 14168 55% 0.00 12651 12220 97% 1.3
Plotting Polynomials 321 251 78% 0.00 238 218 92% 2.5
Shotcube 333 48 14% 0.17 72 31 43% 8.4
Ternarian Weights 681 276 41% 0.00 304 253 83% 3.7
Trapezoid Walkway 480 223 46% 0.00 228 196 86% 3.5