Problems from Waterloo Programming Contest 2009-02-08

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Colliding Traffic0.01319217339018%3.7Mediumen
Ocean Currents0.17642185052428%5.1Mediumen
Scrolling Sign0.00100154567344%2.9Mediumen
Unique Snowflakes0.02864364122528%3.9Mediumen
Zerg Rush!!!0.242561190179%8.8Harden