Problems from KTH Challenge 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A1 Paper0.00983000232477%4.5Mediumen
Black Friday0.00824841429489%1.7Easyen
Odd Binomial Coefficients0.005556348185%3.6Mediumen
Proteins0.01526997778%5.3Mediumen
Shibuya Crossing0.0040721214468%6.2Harden
The Addition Game0.001216642641%8.8Harden
Xortris0.004521239376%6.9Harden