Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Binary Tree0.016042997124%8.4Harden
Decoding the Hallway0.003332127133%6.4Harden
It Can Be Arranged0.03113630011438%4.8Mediumen
Joe is learning to speak0.429051726437%6.9Harden
Mixing Colours0.4812071334635%6.7Harden
Odd and Even Zeroes0.004422877928%6.1Harden
Shopping Malls0.00117173029040%3.9Mediumen
Trending Topic0.01484146145431%4.9Mediumen
VivoParc0.00410210551024%5.1Mediumen