Problems from CTU Open 2011

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ambiguous Result0.0210991187664%6.0Harden
Collatz Conjecture0.001741718141482%2.3Easyen
Domino Tiling0.052085281450%7.4Harden
Intergalactic Mortgage0.0216624718073%5.8Harden
Invasion0.0429640432380%4.7Mediumen
Mine the Gradient0.111391251456%7.0Harden
Simple Polygon0.2213391074340%8.6Harden
Text Encryption0.0010764852781%3.4Mediumen