Problems from Waterloo Programming Contest 2005-09-17

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Ferry Loading III0.00461355191526%4.8Mediumen
Rock-Paper-Scissors Tournament0.023058006197825%3.8Mediumen
So you want to be a 2^n-aire?0.00174116660852%3.2Mediumen
Structural Equivalence0.00119329621%6.1Harden