Problems from KTH Challenge 2015

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A1 Paper 5793 1726 30% 0.00 1706 1353 79% 3.7
Black Friday 7853 2995 38% 0.00 2976 2612 88% 2.0
Odd Binomial Coefficients 1389 441 32% 0.00 299 257 86% 3.5
Proteins 186 57 31% 0.01 58 46 79% 5.9
Shibuya Crossing 403 124 31% 0.00 118 89 75% 5.8
The Addition Game 172 27 16% 0.00 35 15 43% 9.1
Xortris 344 98 28% 0.00 103 82 80% 5.0