Problems from 2004 ACM ICPC Mid-Central North American Regional Contest

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Flow Layout 1820 1081 59% 0.00 1080 974 90% 2.0
Ink Blots 21 8 38% 0.00 11 7 64% 7.1
Permutation Code 333 186 56% 0.00 198 169 85% 2.3
Primary X-Subfactor Series 178 54 30% 0.00 72 46 64% 4.8
Speed Limit 15360 8343 54% 0.00 7673 7359 96% 1.4
Symmetric Order 6632 3982 60% 0.00 3851 3665 95% 1.5
Triangle Cuts 62 13 21% 0.01 22 11 50% 7.5