Problems from CTU Open 2011

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ambiguous Result0.0210991187564%6.3Harden
Collatz Conjecture0.001741572127881%2.5Easyen
Domino Tiling0.052085261142%8.0Harden
Intergalactic Mortgage0.0516624417873%5.8Harden
Invasion0.0429639531580%4.8Mediumen
Mine the Gradient0.111391261454%7.4Harden
Simple Polygon0.2213391064240%8.4Harden
Text Encryption0.0010763652182%3.3Mediumen