Problems from KTH Challenge 2015

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A1 Paper 5461 1608 29% 0.00 1576 1245 79% 3.8
Black Friday 7371 2790 38% 0.00 2793 2439 87% 2.1
Odd Binomial Coefficients 1331 433 33% 0.00 292 251 86% 3.4
Proteins 185 57 31% 0.01 57 46 81% 5.9
Shibuya Crossing 376 120 32% 0.00 113 86 76% 5.5
The Addition Game 172 27 16% 0.00 35 15 43% 9.1
Xortris 342 97 28% 0.00 101 81 80% 4.9