Problems from Waterloo Programming Contest 2007-09-23

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Carpool0.00109654210620%6.9Harden
Conformity0.006212780583046%1.5Easyen
Exchange Rates0.0013881922427%4.9Mediumen
Pseudoprime numbers0.00912819108939%3.5Mediumen