Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Binary Tree0.016044228420%8.7Harden
Decoding the Hallway0.003332687829%7.0Harden
It Can Be Arranged0.03113636311933%4.7Mediumen
Joe is learning to speak0.429052037034%6.5Harden
Mixing Colours0.4812071584629%6.9Harden
Odd and Even Zeroes0.0025035711131%6.0Harden
Shopping Malls0.00104478230839%3.9Mediumen
Trending Topic0.01484158149031%4.7Mediumen
VivoParc0.00410222754224%4.9Mediumen