Problems from KTH Challenge 2011

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Base-2 Palindromes0.0084236295040%4.1Mediumen
Coast Length0.01510895395036%3.2Mediumen
Getting Rid of Coins0.00332130624919%7.7Harden
Icons in the Toolbar0.022262168841%7.8Harden
Kindergarten Excursion0.00634251135632%3.5Mediumen
Paintball0.005994664168536%3.2Mediumen
Reversed Binary Numbers0.005255011526360%1.5Easyen