Problems from Southwestern Europe Regional Contest (SWERC) 2013

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Binary Tree 246 62 25% 0.01 64 45 70% 6.8
Decoding the Hallway 65 32 49% 0.00 31 27 87% 4.7
It Can Be Arranged 163 61 37% 0.03 56 46 82% 5.3
Joe is learning to speak 74 38 51% 0.42 30 26 87% 5.7
Mixing Colours 71 22 31% 1.08 16 11 69% 7.3
Odd and Even Zeroes 217 73 34% 0.00 70 53 76% 5.1
Shopping Malls 176 63 36% 0.00 73 58 79% 5.6
Trending Topic 865 248 29% 0.01 223 170 76% 5.9
VivoParc 574 160 28% 0.00 150 121 81% 4.9