Problems from 2013 ACM-ICPC North American Qualifier

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
4 thought 10383 3507 34% 0.00 3428 2886 84% 2.4
Biggest Slice 818 201 25% 0.00 250 156 62% 6.5
Erratic Ants 1450 443 31% 0.00 509 374 73% 4.9
Even Up Solitaire 5024 1898 38% 0.00 1749 1455 83% 2.6
Goldbach's Conjecture 4352 1673 38% 0.00 1591 1297 82% 2.9
Island Buses 548 158 29% 0.00 172 121 70% 6.8
Oddities 27911 15242 55% 0.00 13602 13125 96% 1.4
Plotting Polynomials 332 260 78% 0.00 247 227 92% 2.5
Shotcube 333 48 14% 0.17 72 31 43% 8.4
Ternarian Weights 715 285 40% 0.00 318 262 82% 3.8
Trapezoid Walkway 490 229 47% 0.00 233 200 86% 3.6