Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Binary Tree0.016041436848%8.3Harden
Decoding the Hallway0.00333846274%7.3Harden
It Can Be Arranged0.0311361219881%4.9Mediumen
Joe is learning to speak0.21905654975%6.5Harden
Mixing Colours0.481207402562%7.2Harden
Odd and Even Zeroes0.002501289070%5.9Harden
Shopping Malls0.00104425420982%3.8Mediumen
Trending Topic0.0148440733783%4.5Mediumen
VivoParc0.0041045636780%4.8Mediumen