Problems from Waterloo Programming Contest 2009-02-08

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Colliding Traffic0.0131922117780%3.7Mediumen
Ocean Currents0.1764243035081%5.0Mediumen
Scrolling Sign0.0010066258088%3.0Mediumen
Unique Snowflakes0.0286104683179%3.9Mediumen
Zerg Rush!!!0.242561281450%8.9Harden