Problems from KTH Challenge 2011

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Base-2 Palindromes0.0085202880640%4.2Mediumen
Coast Length0.01510002361236%3.1Mediumen
Getting Rid of Coins0.00332123123619%7.7Harden
Icons in the Toolbar0.022261938343%8.1Harden
Kindergarten Excursion0.00633815120832%3.5Mediumen
Paintball0.005994191152236%3.3Mediumen
Reversed Binary Numbers0.005236941414860%1.3Easyen