Problems from Google Code Jam Practice Problems

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Alien Numbers0.001253209278387%1.9Easyen
Shopping Plan0.001120472757%7.8Harden
Square Fields (Easy)0.0077213410881%5.3Mediumen
Square Fields (Hard)0.0082417713073%6.5Harden