Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Binary Tree0.016041325945%8.7Harden
Decoding the Hallway0.00333826073%7.6Harden
It Can Be Arranged0.0311361199681%4.8Mediumen
Joe is learning to speak0.42905644875%6.6Harden
Mixing Colours0.481207402562%7.2Harden
Odd and Even Zeroes0.002501268870%6.0Harden
Shopping Malls0.00104424219982%3.8Mediumen
Trending Topic0.0148439932982%4.6Mediumen
VivoParc0.0041045636881%4.7Mediumen