Problems from Southwestern Europe Regional Contest (SWERC) 2013

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Binary Tree0.016043077625%8.4Harden
Decoding the Hallway0.003332027135%4.8Mediumen
It Can Be Arranged0.03113630710936%4.6Mediumen
Joe is learning to speak0.429051626641%6.7Harden
Mixing Colours1.0812211103935%7.3Harden
Odd and Even Zeroes0.004182588433%6.1Harden
Shopping Malls0.00117167627441%3.9Mediumen
Trending Topic0.01484148245631%5.1Mediumen
VivoParc0.00410203049324%5.3Mediumen