Problems from Waterloo Programming Contest 2007-09-23

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Carpool0.001096967275%6.3Harden
Conformity0.00625205492495%1.5Easyen
Exchange Rates0.0012626422083%4.0Mediumen
Pseudoprime numbers0.0091106391286%3.3Mediumen