Problems from KTH Challenge 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A1 Paper0.00982964229477%4.7Mediumen
Black Friday0.00824743419788%1.8Easyen
Odd Binomial Coefficients0.005555647585%3.7Mediumen
Proteins0.01566866474%6.4Harden
Shibuya Crossing0.0040720814268%6.2Harden
The Addition Game0.001216622540%8.7Harden
Xortris0.004521189177%6.4Harden