Problems from KTH Challenge 2011

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Base-2 Palindromes 1369 550 40% 0.00 567 445 78% 4.3
Coast Length 6778 2479 37% 0.01 1770 1505 85% 3.6
Getting Rid of Coins 856 167 20% 0.00 179 105 59% 8.0
Icons in the Toolbar 122 54 44% 0.02 62 45 73% 7.0
Kindergarten Excursion 2075 672 32% 0.00 573 472 82% 4.2
Paintball 1556 614 39% 0.00 440 375 85% 4.4
Reversed Binary Numbers 15091 9213 61% 0.00 8100 7695 95% 1.5