The list is divided into categories to ease browsing. All problem statements are public domain.

Please note that the list is not sorted in any special order; easy and hard problems are interleaved. For example, the Blog problem is a lot harder to fully implement compared to, for example, the String set problem. Just pick a problem you fancy and play with it!

• Games
• Reload countdown
• Bowling game
• Tic-Tac-Toe
  
• Strings
• URL splitting
• SQL string generator
• Postfix form
• Template engine
• Spell out check amount
• Collections & sorting
  
• String set
• Integer stack
• Queue
• Multi map
• Natural sort
• User interaction
• Magneto effect
• Console interaction
• Maths
  
• Range
• Roman number conversion
• Line segment intersection
• Overlapping rectangles
• Uncategorized
• Spreadsheet
• Soundex
• Larger problems
• Blog
• Boyer-Moore string search
• Evaluate arithmetic expression