cd4d8ac0617095f855edc5b54495c670e59c772c
my solution no2 to this problem

 

challenge
Mieszkania3 Challenge
submitter
[anonymised]
submitted
2018-03-28 10:50:43.2166 UTC
original repo
ssh://gitolite@gonito.net/mk95/mieszkania3 / branch master
publicly available at
git://gonito.net/mieszkania3 / branch submission-01563
browsable at
https://gonito.net/gitlist/mieszkania3.git/submission-01563/
clone by
git clone --single-branch git://gonito.net/mieszkania3 -b submission-01563
# dev-0 RMSE test-A RMSE
110 263256.724455277 293703.441269347