Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Binary Tree0.0160421010048%7.7Harden
Decoding the Hallway0.00333846274%7.3Harden
It Can Be Arranged0.0311361219881%5.0Mediumen
Joe is learning to speak0.21905654975%6.7Harden
Mixing Colours0.481207402562%7.4Harden
Odd and Even Zeroes0.002501289171%5.6Harden
Shopping Malls0.00104425621182%3.7Mediumen
Trending Topic0.0148441234383%4.4Mediumen
VivoParc0.0041045636881%4.6Mediumen