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

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Flow Layout 1860 1107 60% 0.00 1104 998 90% 2.0
Ink Blots 21 8 38% 0.00 11 7 64% 7.1
Permutation Code 344 192 56% 0.00 206 175 85% 2.3
Primary X-Subfactor Series 182 57 31% 0.00 75 49 65% 4.2
Speed Limit 16136 8780 54% 0.00 8055 7721 96% 1.4
Symmetric Order 7327 4345 59% 0.00 4167 3955 95% 1.6
Triangle Cuts 65 15 23% 0.01 23 12 52% 7.0