Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Binary Tree0.016044108220%8.7Harden
Decoding the Hallway0.003332487631%5.9Harden
It Can Be Arranged0.03113634311734%4.7Mediumen
Joe is learning to speak0.429051926835%6.6Harden
Mixing Colours0.4812071464632%6.7Harden
Odd and Even Zeroes0.0041833810130%5.9Harden
Shopping Malls0.00104476130240%3.9Mediumen
Trending Topic0.01484155548131%4.8Mediumen
VivoParc0.00410219153224%5.1Mediumen