Problems from Waterloo Programming Contest 2007-09-23

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Carpool0.00109657911219%6.3Harden
Conformity0.006213827628445%1.6Easyen
Exchange Rates0.0013889125228%4.7Mediumen
Pseudoprime numbers0.00912958113638%3.5Mediumen