Problems from Waterloo Programming Contest 2005-09-17

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Ferry Loading III0.00461347989726%4.8Mediumen
Rock-Paper-Scissors Tournament0.023057560186425%3.6Mediumen
So you want to be a 2^n-aire?0.00178115259852%3.1Mediumen
Structural Equivalence0.00119327622%6.1Harden