Problems from Waterloo/Alberta Programming Contest 2004-06-12

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Expanding Rods 764 167 22% 0.00 117 85 73% 6.2
Grid Speed 20 5 25% 0.04 8 5 62% 7.1
Marbles On A Tree 1641 633 39% 0.00 457 411 90% 2.9
Three Powers 2673 1299 49% 0.00 1057 979 93% 2.3
Work Reduction 1139 324 28% 0.01 270 201 74% 5.6