Problems from KTH Challenge 2011

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Base-2 Palindromes 1602 655 41% 0.00 678 532 78% 4.4
Coast Length 7685 2845 37% 0.01 2036 1736 85% 3.5
Getting Rid of Coins 994 187 19% 0.00 202 120 59% 7.9
Icons in the Toolbar 135 59 44% 0.02 66 49 74% 6.7
Kindergarten Excursion 2542 846 33% 0.00 691 576 83% 4.0
Paintball 1958 808 41% 0.00 555 476 86% 4.0
Reversed Binary Numbers 18420 11256 61% 0.00 9836 9360 95% 1.4