Problems from KTH Challenge 2015

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A1 Paper0.0059514275129%4.1Mediumen
Black Friday0.008211220438739%2.1Easyen
Odd Binomial Coefficients0.0055204269134%3.6Mediumen
Proteins0.015662848329%6.3Harden
Shibuya Crossing0.0041162817528%5.6Harden
The Addition Game0.0012162503614%8.6Harden
Xortris0.004523399729%6.3Harden