Problems from KTH Challenge 2011

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Base-2 Palindromes0.0085212684740%4.1Mediumen
Coast Length0.01510204370436%3.0Mediumen
Getting Rid of Coins0.00332124223719%7.7Harden
Icons in the Toolbar0.022262018542%7.8Harden
Kindergarten Excursion0.00633938124031%3.6Mediumen
Paintball0.005994370158836%3.2Mediumen
Reversed Binary Numbers0.005241831444560%1.4Easyen