Problems from CTU Open 2011

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ambiguous Result0.0210991187564%6.3Harden
Collatz Conjecture0.001741615131181%3.0Mediumen
Domino Tiling0.052085261142%7.7Harden
Intergalactic Mortgage0.0516624417873%5.9Harden
Invasion0.0429639831880%4.8Mediumen
Mine the Gradient0.111391261454%7.1Harden
Simple Polygon0.2213391064240%8.6Harden
Text Encryption0.0010764352582%3.4Mediumen