Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Binary Tree0.016044398419%8.7Harden
Decoding the Hallway0.003332877928%6.5Harden
It Can Be Arranged0.03113637412032%4.7Mediumen
Joe is learning to speak0.429052247132%6.1Harden
Mixing Colours0.4812071794626%7.8Harden
Odd and Even Zeroes0.0025035911231%5.8Harden
Shopping Malls0.00104478831039%3.8Mediumen
Trending Topic0.01484158449231%4.7Mediumen
VivoParc0.00410223154324%4.8Mediumen