Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Binary Tree0.0160421110047%7.7Harden
Decoding the Hallway0.00333846274%7.3Harden
It Can Be Arranged0.0311361229981%5.0Mediumen
Joe is learning to speak0.21905664974%6.6Harden
Mixing Colours0.481207402562%7.3Harden
Odd and Even Zeroes0.002501289070%5.9Harden
Shopping Malls0.00104425521082%3.7Mediumen
Trending Topic0.0148441334383%4.5Mediumen
VivoParc0.0041045736881%4.7Mediumen