Problems from KTH Challenge 2015

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A1 Paper 4948 1462 30% 0.00 1445 1151 80% 3.6
Black Friday 6909 2638 38% 0.00 2649 2303 87% 2.2
Odd Binomial Coefficients 1292 416 32% 0.00 273 236 86% 3.4
Proteins 172 55 32% 0.01 56 44 79% 6.0
Shibuya Crossing 362 115 32% 0.00 107 81 76% 5.7
The Addition Game 171 27 16% 0.00 34 15 44% 9.0
Xortris 218 69 32% 0.00 79 63 80% 5.9