Problems from KTH Challenge 2015

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
A1 Paper0.00982997232277%4.6Mediumen
Black Friday0.00824823427689%1.7Easyen
Odd Binomial Coefficients0.005556248085%3.6Mediumen
Proteins0.01526997778%5.2Mediumen
Shibuya Crossing0.0040721214468%6.2Harden
The Addition Game0.001216642641%8.8Harden
Xortris0.004521239376%6.9Harden