Problems from KTH Challenge 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A1 Paper0.00983022234077%4.6Mediumen
Black Friday0.00824884433589%1.8Easyen
Odd Binomial Coefficients0.005556748586%3.6Mediumen
Proteins0.015261017978%5.4Mediumen
Shibuya Crossing0.0040721314568%6.1Harden
The Addition Game0.001216652640%8.8Harden
Xortris0.004521249375%6.9Harden