Problems from Waterloo Programming Contest 2009-02-08

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Colliding Traffic0.01319216738918%3.7Mediumen
Ocean Currents0.17642182951828%5.2Mediumen
Scrolling Sign0.00100152366344%3.0Mediumen
Unique Snowflakes0.02864282120428%3.8Mediumen
Zerg Rush!!!0.242561181179%8.4Harden