Problems from KTH Challenge 2011

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Base-2 Palindromes0.0085216985940%4.2Mediumen
Coast Length0.01510380377436%2.9Mediumen
Getting Rid of Coins0.00332124223719%7.7Harden
Icons in the Toolbar0.022262028643%7.8Harden
Kindergarten Excursion0.00633970125532%3.8Mediumen
Paintball0.005994398159436%3.3Mediumen
Reversed Binary Numbers0.005245181461360%1.4Easyen