Problems from Northwestern Europe Programming Contest (NWERC) 2006

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Prime Path 1273 790 62% 0.00 543 505 93% 2.3
Sudoku 403 42 10% 0.02 80 30 38% 8.9
The SetStack Computer 1520 452 30% 0.00 278 220 79% 5.9
Ticket to Ride 25 7 28% 0.00 12 7 58% 5.9