Problems from CTU Open 2011

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Ambiguous Result0.0210991187765%5.7Harden
Collatz Conjecture0.001741723141882%2.3Easyen
Domino Tiling0.052085281450%7.6Harden
Intergalactic Mortgage0.0216624718173%5.8Harden
Invasion0.0429640932680%4.7Mediumen
Mine the Gradient0.111391251456%7.2Harden
Simple Polygon0.2213391074340%8.6Harden
Text Encryption0.0010765053082%3.3Mediumen