Problems from KTH Challenge 2015

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
A1 Paper0.00510106293529%4.6Mediumen
Black Friday0.008212056479040%1.8Easyen
Odd Binomial Coefficients0.0055216173934%3.6Mediumen
Proteins0.015663338726%6.1Harden
Shibuya Crossing0.00407103120920%6.2Harden
The Addition Game0.0012162843813%8.5Harden
Xortris0.0045239610326%6.5Harden